AdZap Ads

By GoldSparrow in Adware

Threat Scorecard

Popularity Rank: 8,895
Threat Level: 80 % (High)
Infected Computers: 1,978
First Seen: March 20, 2015
Last Seen: August 1, 2026
OS(es) Affected: Windows

The AdZap binary is deemed as adware by security researchers because it functions as an advertising engine. The AdZap adware can inject ads in your web browser through an add-on, a Browser Helper Object, and a browser extension. The AdZap adware can be found accompanying free application installers under the 'Advanced' or 'Custom' option. Ads by AdZap can take the form of pop-ups, contextual and transitional ads, and banners. You may want to know that the AdZap adware might direct you to visit potentially harmful Internet shops and web pages that may host harmful software. Also, web surfers that are concerned with their privacy may want to know that AdZap may read what pages they visit in order to push targeted marketing content in their browser. Computer users might wish to remove the AdZap adware from their system by using a trustworthy anti-spyware application capable of removing all files associated with AdZap.

Analysis Report

General information

Family Name: Trojan.CobaltStrike.B
Signature status: No Signature

Known Samples

MD5: a763bc920b32e9407b151d180d56f6bb
SHA1: 7882df959bd7ed3aa5b00f7962cec8a4f232c0dd
SHA256: 4470B19F87491E4B10B1EBE684DA37AB44C68A0334A8F0D6C1186861FB701C56
File Size: 581.12 KB, 581120 bytes

Windows Portable Executable Attributes

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

File Traits

  • dll
  • x86

Block Information

Total Blocks: 3,271
Potentially Malicious Blocks: 17
Whitelisted Blocks: 2,890
Unknown Blocks: 364

Visual Map

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... Data truncated
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Windows API Usage

Category API
Syscall Use
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtClose
  • ntdll.dll!NtCreateFile
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtQueryAttributesFile
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  • ntdll.dll!NtQueryDebugFilterState
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQuerySystemInformationEx
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationFile
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSetInformationWorkerFactory
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWriteFile
Process Manipulation Evasion
  • NtUnmapViewOfSection
Process Shell Execute
  • CreateProcess
Anti Debug
  • NtQuerySystemInformation

Shell Command Execution

C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\7882df959bd7ed3aa5b00f7962cec8a4f232c0dd_0000581120.,LiQMAxHB