Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    12-03-2024 22:28

General

  • Target

    8657233b83ae7fa42534243b618700431733bf4edc9d97864e250fa15d95592d.exe

  • Size

    229KB

  • MD5

    24233839190b24bee9fb8442540bfbfd

  • SHA1

    ca3a499080cbef642d1ad8e677a82111df491a96

  • SHA256

    8657233b83ae7fa42534243b618700431733bf4edc9d97864e250fa15d95592d

  • SHA512

    7895bc79817bbe298970535e41ce9db9b11bbfd1fcfd32dd0346e48d6596130375d894d76c70c2bd45c154de131e5de74e4d86400f90d9b7ac52ae8cce819190

  • SSDEEP

    6144:2loZMD9EB1/SqctonEPfCqAOYiElX8k7J+btUgJB7j8e1m1DZ:AoZpdSqcwvOYiElX8k7J+btUgJB3w

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 2 IoCs
  • Umbral

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

  • Detects executables attemping to enumerate video devices using WMI 2 IoCs
  • Detects executables containing possible sandbox analysis VM names 2 IoCs
  • Detects executables containing possible sandbox analysis VM usernames 2 IoCs
  • Detects executables containing possible sandbox system UUIDs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8657233b83ae7fa42534243b618700431733bf4edc9d97864e250fa15d95592d.exe
    "C:\Users\Admin\AppData\Local\Temp\8657233b83ae7fa42534243b618700431733bf4edc9d97864e250fa15d95592d.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2592

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1996-0-0x0000000000FB0000-0x0000000000FF0000-memory.dmp

    Filesize

    256KB

  • memory/1996-1-0x000007FEF56B0000-0x000007FEF609C000-memory.dmp

    Filesize

    9.9MB

  • memory/1996-2-0x00000000005E0000-0x0000000000660000-memory.dmp

    Filesize

    512KB

  • memory/1996-3-0x000007FEF56B0000-0x000007FEF609C000-memory.dmp

    Filesize

    9.9MB