Extracted

• • Target

    Update.exe

  • Size

    5.6MB

  • MD5

    3d3c49dd5d13a242b436e0a065cd6837

  • SHA1

    e38a773ffa08452c449ca5a880d89cfad24b6f1b

  • SHA256

    e0338c845a876d585eceb084311e84f3becd6fa6f0851567ba2c5f00eeaf4ecf

  • SHA512

    dd0e590310392b0543d47a2d24d55f6f091ba59acc0d7ea533039ffb48f1b8938587889bcfa19b0538a62ba26fcde2172253860ceab34af40fd7bf65b6587b00

  • SSDEEP

    98304:nsl27OuKr+gvhf2U9Nzm31PMoslkqXf0FvUcwti78OqJ7TPBvc8X6UcR6s:nPOuK6mn9NzgMoYkSIvUcwti7TQlvciY

  Score

  10^/10

  milleniumratdiscoverypersistenceratspywarestealergurcu

  • Gurcu family

    gurcu

  • Gurcu, WhiteSnake

    Gurcu is a malware stealer written in C#.

    stealergurcu

  • MilleniumRat

    MilleniumRat is a remote access trojan written in C#.

    ratstealermilleniumrat

  • Milleniumrat family

    milleniumrat

  • Modifies WinLogon for persistence

    persistence

  • Process spawned unexpected child process

    This typically indicates the parent process was compromised via an exploit or macro.

  • Downloads MZ/PE file

  • Checks computer location settings

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

  • 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.

    spywarestealer

  • Adds Run key to start application

    persistence

  • 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

  • Enumerates processes with tasklist

    discovery
  behavioral1behavioral2behavioral3