Analysis

  • max time kernel
    61s
  • max time network
    65s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-11-2024 17:06

General

  • Target

    Umbral.Stealer.zip

  • Size

    3.3MB

  • MD5

    f355889db3ff6bae624f80f41a52e619

  • SHA1

    47f7916272a81d313e70808270c3c351207b890f

  • SHA256

    8e95865efd39220dfc4abebc27141d9eae288a11981e43f09cbee6bf90347fe0

  • SHA512

    bff7636f6cc0fadfd6f027e2ebda9e80fd5c64d551b2c666929b2d990509af73b082d739f14bb1497be292eafe703ebd5d7188493e2cc34b73d249fe901820eb

  • SSDEEP

    98304:XINn7mVoLvbDU48xzliDSjtYV2jg0tsGTplmOhl88uF:mjLvvD8BcSjtAB0zplNl8Z

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files\7-Zip\7zFM.exe
    "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\Umbral.Stealer.zip"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:672
    • C:\Users\Admin\AppData\Local\Temp\7zO0A221E78\Umbral.builder.exe
      "C:\Users\Admin\AppData\Local\Temp\7zO0A221E78\Umbral.builder.exe"
      2⤵
      • Executes dropped EXE
      PID:4932
    • C:\Users\Admin\AppData\Local\Temp\7zO0A276598\Umbral.builder.exe
      "C:\Users\Admin\AppData\Local\Temp\7zO0A276598\Umbral.builder.exe"
      2⤵
      • Executes dropped EXE
      PID:2652

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\7zO0A221E78\Umbral.builder.exe

    Filesize

    114KB

    MD5

    d91fb6867df7e4303d98b5e90faae73c

    SHA1

    496f53ad8cd9381f1c1b577a73e978081002c1db

    SHA256

    bb19b002df31e1196b4e6530cf54c449e9cf1383d3adc5334a0442fa96b36344

    SHA512

    5dbcfe9bf567c6f1e18027950726af1835ab8b363ba8b040fd379b4cfe94b0894bc969b3c04fa4f1964b441a7b894bd4d37f3aabe3ea31396687a6ca093cfdc9

  • memory/4932-12-0x00007FFFA0CB3000-0x00007FFFA0CB5000-memory.dmp

    Filesize

    8KB

  • memory/4932-13-0x00000227B6730000-0x00000227B6752000-memory.dmp

    Filesize

    136KB

  • memory/4932-14-0x00007FFFA0CB0000-0x00007FFFA1771000-memory.dmp

    Filesize

    10.8MB

  • memory/4932-15-0x00007FFFA0CB0000-0x00007FFFA1771000-memory.dmp

    Filesize

    10.8MB