Trojan.Kryptik.JUE
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Popularity Rank: | 25,315 |
| Threat Level: | 80 % (High) |
| First Seen: | February 14, 2026 |
| Last Seen: | September 4, 2026 |
| OS(es) Affected: | Windows |
Trojan.Kryptik.JUE is a dangerous Trojan horse detection affecting Windows computers. Classified with a high danger level, this threat is designed to quietly infiltrate a system, disguise itself as a legitimate program, and carry out a range of malicious actions without the user's knowledge. Its name is associated with the broader Kryptik family of Trojans, which are known for using obfuscation and disguise techniques to avoid detection.
Table of Contents
What Trojan.Kryptik.JUE Does
Once active on a system, Trojan.Kryptik.JUE runs silently in the background while performing harmful operations. Analysis of this threat shows it is a 64-bit Windows executable that masquerades as a legitimate application, in this case presenting itself as a document viewer tool, complete with a fake company name and product description designed to make it look trustworthy. Despite this disguise, the file carries a digital signature chain that is not trusted by the operating system, a red flag that distinguishes it from genuine software.
Behaviorally, the Trojan uses low-level system calls to manipulate memory, map and unmap sections of code, and interact directly with files, techniques often associated with process injection and attempts to operate stealthily within trusted processes. It has been observed using functions to check for the presence of a debugger, suggesting it tries to evade analysis by security researchers. It is also capable of opening network connections, meaning it can communicate with a remote server, potentially to receive further instructions or exfiltrate data. Additionally, command execution activity involving network session queries indicates the Trojan may attempt to gather information about the system and any connected network resources. Like other Trojans in this category, Kryptik.JUE may give attackers remote control over the infected machine, delete or modify files, and install additional malware.
How It Usually Gets onto Computers
Trojan.Kryptik.JUE typically spreads through deceptive methods common to this threat category. It is often bundled in software downloaded from untrustworthy or compromised websites, or delivered as an email attachment disguised as an innocent file, such as an executable, image, or video file. In some cases, it may exploit unpatched system vulnerabilities to install itself without any direct action from the user. Because the file can be disguised with a legitimate-looking name and publisher information, users may be tricked into running it manually, believing it to be a harmless document viewer or similar utility.
Risks for the User
The presence of this Trojan poses serious risks. It can grant attackers broad control over the infected machine, allowing them to steal personal or financial information, monitor activity, and install further malicious software. Its ability to query network session information suggests it may also attempt to spread or gather intelligence across a local network, which is particularly concerning in business or shared computer environments.
Signs of Infection
Because Trojans like this are built to operate stealthily, visible signs may be subtle. Users should watch for unexpected slowdowns, unfamiliar processes running in the background, unusual network activity, security software being disabled, or unexpected pop-ups and errors. Programs crashing unexpectedly or new files appearing without explanation can also indicate a compromise.
How to Stay Protected
To reduce the risk of infection, avoid downloading software from unofficial or suspicious websites, and never open email attachments from unknown or unverified senders. Keep the operating system and all installed applications updated to close known security vulnerabilities. Regularly back up important files, use caution with unsolicited links and downloads, and maintain reputable, up-to-date security software to detect and remove threats like Trojan.Kryptik.JUE before they can cause harm.
Analysis Report
General information
| Family Name: | Trojan.Kryptik.JUE |
|---|---|
| Signature status: | Root Not Trusted |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
eb4425af985de82f82a01e4ecddef6fa
SHA1:
3b54abfbc168d51402b38125303efecdc138cfc3
SHA256:
FED29E36A91E006AA72ACD7FC52FFE19ED1DC66D9DB84919EA2AB8E94B0071BE
File Size:
2.05 MB, 2048552 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have exports table
- File has TLS information
- File is 64-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
- File is not packed
- IMAGE_FILE_DLL is not set inside PE header (Executable)
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- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Icons
File Icons
This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.
Windows PE Version Information
Windows PE Version Information
This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.| Name | Value |
|---|---|
| Company Name | Adobe Inc. |
| File Description | Instruction Document Viewer |
| File Version | 2.1.0.4 |
| Legal Copyright | Copyright © 2025 Adobe Inc. |
| Original Filename | Instruction.exe |
| Product Name | Instruction Viewer |
| Product Version | 2.1.0.4 |
Digital Signatures
Digital Signatures
This section lists digital signatures that are attached to samples within this family. When analyzing and verifying digital signatures, it is important to confirm that the signature’s root authority is a well-known and trustworthy entity and that the status of the signature is good. Malware is often signed with non-trustworthy “Self Signed” digital signatures (which can be easily created by a malware author with no verification). Malware may also be signed by legitimate signatures that have an invalid status, and by signatures from questionable root authorities with fake or misleading “Signer” names.| Signer | Root | Status |
|---|---|---|
| Flagship Promotion s. r. o. | SSL.com EV Root Certification Authority RSA R2 | Root Not Trusted |
File Traits
- ntdll
- x64
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.| Total Blocks: | 5,445 |
|---|---|
| Potentially Malicious Blocks: | 132 |
| Whitelisted Blocks: | 5,131 |
| Unknown Blocks: | 182 |
Visual Map
... Data truncated? - Unknown Block
x - Potentially Malicious Block
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\cmd.exe | G٪C;� | RegNtPreCreateKey |
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 㶔ᆭ㭃ǝ | RegNtPreCreateKey |
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| Syscall Use |
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| Process Manipulation Evasion |
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| Process Shell Execute |
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| Anti Debug |
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| User Data Access |
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| Process Terminate |
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| Cert Store Read |
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| Network Winsock2 |
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| Network Winsock |
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Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
C:\WINDOWS\system32\cmd.exe "cmd" /C net session
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C:\WINDOWS\system32\net.exe net session
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