Analysis

  • max time kernel
    31s
  • max time network
    33s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-10-2024 10:16

General

  • Target

    BLUME RUST.exe

  • Size

    227KB

  • MD5

    de788e456ceac91e1dd1a2ed01d332cc

  • SHA1

    d0a59e876e3781b70379127425612c9cb1a99436

  • SHA256

    559a3d56b0318e3e66e68e92079a8fd4f04adb5c6c3899d06b4ad66cccc19cdd

  • SHA512

    41daddd8548376e9c6f161c113c7a7721b2c683aa361dcfb4341906e45f78ec053242fb2a221b622e229c4967f04c04d7a4e3436cc4fddf2054db3e9907d2b6a

  • SSDEEP

    6144:eloZM+rIkd8g+EtXHkv/iD4cwuciAfboNxUyzzqlUob8e1mKi:IoZtL+EP8cwuciAfboNxUyzzqVE

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

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

  • 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\BLUME RUST.exe
    "C:\Users\Admin\AppData\Local\Temp\BLUME RUST.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:1208
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DisplayEnhancementService
    1⤵
      PID:3764

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1556-0-0x00007FFCD44C3000-0x00007FFCD44C5000-memory.dmp

      Filesize

      8KB

    • memory/1556-1-0x0000016E61020000-0x0000016E61060000-memory.dmp

      Filesize

      256KB

    • memory/1556-2-0x00007FFCD44C0000-0x00007FFCD4F81000-memory.dmp

      Filesize

      10.8MB

    • memory/1556-4-0x00007FFCD44C0000-0x00007FFCD4F81000-memory.dmp

      Filesize

      10.8MB