General

  • Target

    AntiMracV1.bin

  • Size

    29.1MB

  • Sample

    241120-sf1zasyajd

  • MD5

    f3e0c268199e4f788421716fde6f0760

  • SHA1

    3d2ad93f3f989bb736062ffaa6fdd03c1368b19a

  • SHA256

    e0f8fd9eb2e8f226afac9450bc4f471a19cf7c89be86163019e3d646200279d5

  • SHA512

    66a6def1c946560f92c1a5a84173e4f9e1b9d33afb53fc3ccedbad56898cbb1e4c3b6ea138d0f91af71b7885fa1c4ca2b2ac162fb968d554fd8cf3bedff67fd0

  • SSDEEP

    786432:WbjeRNCEDUQpt6ZkMpLdn3WpSrONCL79USlqZr6Y:CKRNCjCvMpLdRONpSk+Y

Malware Config

Targets

    • Target

      AntiMracV1.bin

    • Size

      29.1MB

    • MD5

      f3e0c268199e4f788421716fde6f0760

    • SHA1

      3d2ad93f3f989bb736062ffaa6fdd03c1368b19a

    • SHA256

      e0f8fd9eb2e8f226afac9450bc4f471a19cf7c89be86163019e3d646200279d5

    • SHA512

      66a6def1c946560f92c1a5a84173e4f9e1b9d33afb53fc3ccedbad56898cbb1e4c3b6ea138d0f91af71b7885fa1c4ca2b2ac162fb968d554fd8cf3bedff67fd0

    • SSDEEP

      786432:WbjeRNCEDUQpt6ZkMpLdn3WpSrONCL79USlqZr6Y:CKRNCjCvMpLdRONpSk+Y

    • Deletes Windows Defender Definitions

      Uses mpcmdrun utility to delete all AV definitions.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • 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.

    • Creates new service(s)

    • Drops file in Drivers directory

    • Stops running service(s)

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • 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.

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • Drops file in System32 directory

    • Enumerates processes with tasklist

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks