Analysis

  • max time kernel
    16s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    23/03/2025, 01:28

General

  • Target

    c43547f748a52c7acfff1277e74786ec7f077c43c38e790e8a35ef746ff2c371N.exe

  • Size

    230KB

  • MD5

    b49420e3edc45ce1e356a5b8fa2a9c90

  • SHA1

    8e8db5c97a1a4a80ee366269e841df2b2ae523c7

  • SHA256

    c43547f748a52c7acfff1277e74786ec7f077c43c38e790e8a35ef746ff2c371

  • SHA512

    c0ab221a259f4a112a1459ffd231f078d097e63ebd5c05f77c5746b03f1020969e375b78c438c675ddb01062dd87235253e13187ff0f6576e4589ca3157029fe

  • SSDEEP

    6144:dloZM+rIkd8g+EtXHkv/iD4LJeTywvrYChkijD6h1b8e1mFi:/oZtL+EP8LJeTywvrYChkijD6b3

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 41 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c43547f748a52c7acfff1277e74786ec7f077c43c38e790e8a35ef746ff2c371N.exe
    "C:\Users\Admin\AppData\Local\Temp\c43547f748a52c7acfff1277e74786ec7f077c43c38e790e8a35ef746ff2c371N.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2444
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2812

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2444-0-0x000007FEF5BA3000-0x000007FEF5BA4000-memory.dmp

    Filesize

    4KB

  • memory/2444-1-0x0000000000DF0000-0x0000000000E30000-memory.dmp

    Filesize

    256KB

  • memory/2444-2-0x000007FEF5BA0000-0x000007FEF658C000-memory.dmp

    Filesize

    9.9MB

  • memory/2444-3-0x000007FEF5BA0000-0x000007FEF658C000-memory.dmp

    Filesize

    9.9MB