Analysis

  • max time kernel
    1s
  • max time network
    2s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    27-10-2024 12:18

General

  • Target

    DominantExecutor.exe

  • Size

    235KB

  • MD5

    cd020f630a72c41f0cac05594e2531a8

  • SHA1

    5b50eaf7e1a05898b7b83a6e7be6cb828006345a

  • SHA256

    365f462f95da9ec8d143ca51af88aeb8c9037de86586650288804ae10cc99b27

  • SHA512

    617876e1fd81f9e41c78cd2ea905bf6ff7b985dc123dba98a031c69172bf8ceb947a7d73495f2cecdbba6c1bb55354b72bcf1446158adcb8ddf045f456ba8174

  • SSDEEP

    6144:rloZM+rIkd8g+EtXHkv/iD4uA4LbhS6F6AxDeeb9X0b8e1mMx7i:poZtL+EP8uA4LbhS6F6AxDeeb+7xW

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

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

  • Umbral family
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\DominantExecutor.exe
    "C:\Users\Admin\AppData\Local\Temp\DominantExecutor.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1556
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2640

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1556-0-0x00007FFA0F2B3000-0x00007FFA0F2B5000-memory.dmp

    Filesize

    8KB

  • memory/1556-1-0x000002BDF0EE0000-0x000002BDF0F20000-memory.dmp

    Filesize

    256KB

  • memory/1556-2-0x00007FFA0F2B0000-0x00007FFA0FD72000-memory.dmp

    Filesize

    10.8MB

  • memory/1556-4-0x00007FFA0F2B0000-0x00007FFA0FD72000-memory.dmp

    Filesize

    10.8MB