Threat Database Ransomware Stop.TYWD Ransomware

Stop.TYWD Ransomware

By CagedTech in Ransomware

Threat Scorecard

Popularity Rank: 26,446
Threat Level: 100 % (High)
Infected Computers: 312
First Seen: March 23, 2023
Last Seen: January 26, 2026
OS(es) Affected: Windows

Analysis Report

General information

Family Name: Stop.TYWD Ransomware
Signature status: No Signature

Known Samples

MD5: e2d9c67fb13d73f9be13566c7ed5bea7
SHA1: 71cb010b878e28a821c8bbd7bb0b7df6f11291e9
SHA256: 0DEF328DAE3EC5A225D79E8DBD29C18D086FF349184E8B35E82C491B7DF1BAA3
File Size: 404.99 KB, 404992 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have exports table
  • File doesn't have security information
  • File is 32-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)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

Windows PE Version Information

Name Value
Company Name Microsoft Corporation
File Description Win32 Cabinet Self-Extractor
File Version 11.00.17763.1 (WinBuild.160101.0800)
Internal Name Wextract
Legal Copyright © Microsoft Corporation. All rights reserved.
Original Filename WEXTRACT.EXE .MUI
Product Name Internet Explorer
Product Version 11.00.17763.1

File Traits

  • HighEntropy
  • x86

Files Modified

File Attributes
\device\namedpipe\gmdasllogger Generic Write,Read Attributes
c:\users\user\appdata\local\temp\ixp000.tmp\pro4542.exe Generic Write,Read Attributes
c:\users\user\appdata\local\temp\ixp000.tmp\pro4542.exe Synchronize,Write Attributes
c:\users\user\appdata\local\temp\ixp000.tmp\qu4632.exe Generic Write,Read Attributes
c:\users\user\appdata\local\temp\ixp000.tmp\qu4632.exe Synchronize,Write Attributes
c:\users\user\appdata\local\temp\ixp000.tmp\tmp4351$.tmp Generic Write,Read Attributes,Delete

Registry Modifications

Key::Value Data API Name
HKLM\software\wow6432node\microsoft\windows\currentversion\runonce::wextract_cleanup0 rundll32.exe C:\WINDOWS\system32\advpack.dll,DelNodeRunDLL32 "C:\Users\Gdhleeie\AppData\Local\Temp\IXP000.TMP\" RegNtPreCreateKey

Windows API Usage

Category API
Process Manipulation Evasion
  • NtUnmapViewOfSection
Process Shell Execute
  • CreateProcess
Syscall Use
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreatePrivateNamespace
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateThreadEx
  • ntdll.dll!NtDelayExecution
  • ntdll.dll!NtDuplicateObject
Show More
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFlushProcessWriteBuffers
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenDirectoryObject
  • ntdll.dll!NtOpenEvent
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcess
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenThreadToken
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryDefaultLocale
  • ntdll.dll!NtQueryDirectoryFileEx
  • ntdll.dll!NtQueryFullAttributesFile
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationJobObject
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryLicenseValue
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQuerySecurityObject
  • ntdll.dll!NtQuerySystemInformation
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReadRequestData
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtResumeThread
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationThread
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForMultipleObjects
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWriteFile
  • UNKNOWN
User Data Access
  • GetUserName
  • GetUserObjectInformation
Service Control
  • OpenSCManager
  • OpenService
  • StartService
Other Suspicious
  • AdjustTokenPrivileges
Encryption Used
  • BCryptOpenAlgorithmProvider

Shell Command Execution

C:\Users\Gdhleeie\AppData\Local\Temp\IXP000.TMP\pro4542.exe
C:\Users\Gdhleeie\AppData\Local\Temp\IXP000.TMP\qu4632.exe

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