General

  • Target

    F4bGErn.exe

  • Size

    7.6MB

  • Sample

    250131-yg8y7avndy

  • MD5

    fe0c9b38c87120a39f19ee7a9bd0a219

  • SHA1

    8ef15aef987250122e6165abee62d4bc7114e459

  • SHA256

    8cf25972c057620eb17ff5034f0d379774efd6b6df3fef089bff72a726b0c4cc

  • SHA512

    8b3e70589d9948c00870faaed2730812649632b602f8fbb0ffea27cbff6d05374cfe2cee6312b826368213bb78126727e9c0dd83818e27da89510ce534ac1c82

  • SSDEEP

    196608:OCD+kdZwfI9jUCBB7m+mKOY7rXrZusooDmhfvsbnTNWo:B5UIHL7HmBYXrYoaUNr

Malware Config

Targets

    • Target

      F4bGErn.exe

    • Size

      7.6MB

    • MD5

      fe0c9b38c87120a39f19ee7a9bd0a219

    • SHA1

      8ef15aef987250122e6165abee62d4bc7114e459

    • SHA256

      8cf25972c057620eb17ff5034f0d379774efd6b6df3fef089bff72a726b0c4cc

    • SHA512

      8b3e70589d9948c00870faaed2730812649632b602f8fbb0ffea27cbff6d05374cfe2cee6312b826368213bb78126727e9c0dd83818e27da89510ce534ac1c82

    • SSDEEP

      196608:OCD+kdZwfI9jUCBB7m+mKOY7rXrZusooDmhfvsbnTNWo:B5UIHL7HmBYXrYoaUNr

    • Deletes Windows Defender Definitions

      Uses mpcmdrun utility to delete all AV definitions.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Drops file in Drivers directory

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Enumerates processes with tasklist

    • Hide Artifacts: Hidden Files and Directories

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks