Analysis

  • max time kernel
    0s
  • max time network
    4s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    20-06-2024 08:12

General

  • Target

    Steam acount.exe

  • Size

    254KB

  • MD5

    c76a61ed3b075868b99e3575a7c9cb93

  • SHA1

    affce56c1ab83cb2c47ab76e2674f36e30c1c679

  • SHA256

    ba61b0104c910ca1177d94ca3d7e197266d1c14d971cf929b2fc7fafc0064f8f

  • SHA512

    d515fa29846193353708a160d584a826ec7b1c715b55c3ac14fee6c9a6e93c029b16cffe919b7283567c563b3a7362d2446ce015cddb9cda26e73f13b1cc54b3

  • SSDEEP

    6144:04oZoQJ39KtWaV+CRB6jIx7axHUPGUphYc3YeRN66hn7DC8ej58ED:DoZr9Kd8jYPGUphYc3YeRN647k5b

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\Steam acount.exe
    "C:\Users\Admin\AppData\Local\Temp\Steam acount.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3368
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3032

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/3368-0-0x00007FF954663000-0x00007FF954664000-memory.dmp

    Filesize

    4KB

  • memory/3368-1-0x000001BC6D810000-0x000001BC6D856000-memory.dmp

    Filesize

    280KB

  • memory/3368-2-0x00007FF954660000-0x00007FF95504C000-memory.dmp

    Filesize

    9.9MB

  • memory/3368-4-0x00007FF954660000-0x00007FF95504C000-memory.dmp

    Filesize

    9.9MB