Threat Database Trojans Trojan.Guildma.B

Trojan.Guildma.B

By CagedTech in Trojans

Threat Scorecard

Popularity Rank: 18,819
Threat Level: 80 % (High)
Infected Computers: 11
First Seen: October 18, 2021
Last Seen: November 10, 2025
OS(es) Affected: Windows

Analysis Report

General information

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

Known Samples

MD5: 6c9ab8c8f612373e327bad8d2b66267a
SHA1: 463d5044678af85c39c74271478dfb010fbdf5f6
SHA256: 9EAD8DDBE3CDE6C4FD9ECA256E83B5D9D9327646FB6F6725E5A46754C8E76B31
File Size: 1.70 MB, 1699840 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

  • 2+ executable sections
  • dll
  • WriteProcessMemory
  • x86

Block Information

Total Blocks: 528
Potentially Malicious Blocks: 26
Whitelisted Blocks: 502
Unknown Blocks: 0

Visual Map

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0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • Danabot.DB
  • Guildma.B

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 Shell Execute
  • CreateProcess
Anti Debug
  • NtQuerySystemInformation

Shell Command Execution

C:\WINDOWS\SysWOW64\rundll32.exe C:\WINDOWS\system32\rundll32.exe c:\users\user\downloads\463d5044678af85c39c74271478dfb010fbdf5f6_0001699840.,LiQMAxHB

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