Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    13-05-2024 20:35

General

  • Target

    3e9e513d3a5d3358b7a19dbc60b1bb15974f2e83436d9fc54e605b7dfc95836b.exe

  • Size

    229KB

  • MD5

    aaa6c20771fef47391be5c85469eb409

  • SHA1

    f0d9249589fc1ae5b80a34dd11a6459ec8b90b14

  • SHA256

    3e9e513d3a5d3358b7a19dbc60b1bb15974f2e83436d9fc54e605b7dfc95836b

  • SHA512

    3689a4a865cdc054706088a0bd77c92990d218e15de5b9fb34d4abda0f05e6a22192e88d1f2d4dc5b191d7e2d4a92f369177e9e1e61c49f43a4401a97ad0f962

  • SSDEEP

    6144:tloZM+rIkd8g+EtXHkv/iD4RRc8EKtFuZr20VJgr9b8e1mTi:voZtL+EP8RRc8EKtFuZr20VJgZ5

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

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

  • Detects executables attemping to enumerate video devices using WMI 1 IoCs
  • Detects executables containing possible sandbox analysis VM names 1 IoCs
  • Detects executables containing possible sandbox analysis VM usernames 1 IoCs
  • Detects executables containing possible sandbox system UUIDs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3e9e513d3a5d3358b7a19dbc60b1bb15974f2e83436d9fc54e605b7dfc95836b.exe
    "C:\Users\Admin\AppData\Local\Temp\3e9e513d3a5d3358b7a19dbc60b1bb15974f2e83436d9fc54e605b7dfc95836b.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2200
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2656

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2200-0-0x000007FEF5C93000-0x000007FEF5C94000-memory.dmp

    Filesize

    4KB

  • memory/2200-1-0x0000000000F90000-0x0000000000FD0000-memory.dmp

    Filesize

    256KB

  • memory/2200-2-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

    Filesize

    9.9MB

  • memory/2200-17-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

    Filesize

    9.9MB