Extracted

• • Target

    ml3;m.exe

  • Size

    1.5MB

  • MD5

    e8342758981a8b91af5c25e1f2d82799

  • SHA1

    3f13ac0400f03a09d14c1aea4673edc912fb8163

  • SHA256

    ecd0fc8c6587cbc51329cff18fe5f5630c309fabd0f96add2b80f6e8c9a25e1f

  • SHA512

    bb2e35817c02b99bbf674e86b8f87344cfc87d74beb33612cd66c9e35fd6fe088fbf386536a8f13f6007527552efdb095911a7446fcdef97fe5e461224a9a973

  • SSDEEP

    24576:dANYQ/HXt8Vij8QBjZL5voRdNEAqJ+p50U4iAQk5fz2E4u+LCDXalDQiHYhcVLk9:0YQ/98VJQRZLdwduar4Tdku+wYDaILkg

  Score

  10^/10

  umbralbootkitdefense_evasiondiscoveryexecutionpersistenceprivilege_escalationspywarestealer

  • Detect Umbral payload

  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

    stealerumbral

  • Umbral family

    umbral

  • Command and Scripting Interpreter: PowerShell

    Using powershell.exe command.

    execution

  • Command and Scripting Interpreter: PowerShell

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

    execution

  • Disables Task Manager via registry modification

    defense_evasion

  • Modifies Windows Firewall

    defense_evasion

  • Checks computer location settings

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

  • Drops startup file

  • Executes dropped EXE

  • 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.

  • Writes to the Master Boot Record (MBR)

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence

  • Drops file in System32 directory

  behavioral1behavioral2behavioral3behavioral4