Analysis

  • max time kernel
    143s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-02-2024 02:09

General

  • Target

    Umbral.exe

  • Size

    231KB

  • MD5

    a270d4041c245aec5deeed971fba0e6e

  • SHA1

    b9cacd5e11108f37def65b4f17281fa658dde5ef

  • SHA256

    34ab1f6b7597b68d9799a803d61a8b07ab4221a887cc038c7dff132d857c26f1

  • SHA512

    8c6361c0aca08058bbc3862801247c4516f99bb0935e05ad314e4ee0f9d5eefb41017ba28e5743188b9c68c6495f6a7e3142152aa40737d6955f80b81f626453

  • SSDEEP

    6144:RloZM+rIkd8g+EtXHkv/iD4CiRrQBPUon9WvRsY9jfy8e1mFmi:joZtL+EP8DRrQBPUon9WvRsY9MeL

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

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

  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Umbral.exe
    "C:\Users\Admin\AppData\Local\Temp\Umbral.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3228

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2180-0-0x0000019FE4C40000-0x0000019FE4C80000-memory.dmp

    Filesize

    256KB

  • memory/2180-1-0x00007FFC9EF50000-0x00007FFC9FA11000-memory.dmp

    Filesize

    10.8MB

  • memory/2180-2-0x0000019FE67E0000-0x0000019FE67F0000-memory.dmp

    Filesize

    64KB

  • memory/2180-4-0x00007FFC9EF50000-0x00007FFC9FA11000-memory.dmp

    Filesize

    10.8MB