General

  • Target

    main.exe

  • Size

    37.2MB

  • Sample

    240612-hc2fjsshql

  • MD5

    31125c6581ea8f49e9e42c6d9d6b8240

  • SHA1

    a18eb575c3a1b8fa27de21603008c4e204eecd81

  • SHA256

    aa5f1188b6ee04b295860df6da0ee047395bd566508aa570249a07919cdf0db8

  • SHA512

    9a4c84d6ad4c547f614df3521e2fb0f4ad2b5c885b31aa0cd14d43abb48ef3f8c935e3b498c26e5f6a4262d6d37e867f5a4a3f41e32aa09477b61e64fb80ea75

  • SSDEEP

    786432:8RQBrRSY+R46huYqwAO4YoMGD6Oafw2827HokWhSnuvluwhNnlxM:8ROrRR+R4WurwAO49QY2LtW0nuDhNnnM

Malware Config

Targets

    • Target

      main.exe

    • Size

      37.2MB

    • MD5

      31125c6581ea8f49e9e42c6d9d6b8240

    • SHA1

      a18eb575c3a1b8fa27de21603008c4e204eecd81

    • SHA256

      aa5f1188b6ee04b295860df6da0ee047395bd566508aa570249a07919cdf0db8

    • SHA512

      9a4c84d6ad4c547f614df3521e2fb0f4ad2b5c885b31aa0cd14d43abb48ef3f8c935e3b498c26e5f6a4262d6d37e867f5a4a3f41e32aa09477b61e64fb80ea75

    • SSDEEP

      786432:8RQBrRSY+R46huYqwAO4YoMGD6Oafw2827HokWhSnuvluwhNnlxM:8ROrRR+R4WurwAO49QY2LtW0nuDhNnnM

    • Deletes Windows Defender Definitions

      Uses mpcmdrun utility to delete all AV definitions.

    • MilleniumRat

      MilleniumRat is a remote access trojan written in C#.

    • 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.

    • Contacts a large (1203) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • Stops running service(s)

    • 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.

    • UPX packed file

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • 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.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks