Analysis

  • max time kernel
    25s
  • max time network
    31s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-02-2024 11:44

General

  • Target

    vvvv.exe

  • Size

    227KB

  • MD5

    064412f7742a570af4817b07ffc1da36

  • SHA1

    5b2018f24d6d7dc4304598e332a4bd4d8683885b

  • SHA256

    9e3e2baed467adc5d52d7e9fa9158937c4006aa8a2f9093f0562e569ba5a1782

  • SHA512

    22c32df71079a1549e481068a0890442babfbb07d67519e9b880792a43522a82f44eb29ef0bcf99ef337af81cc0b0d1caa072e56b2201bc1911f5c6ba14453b4

  • SSDEEP

    6144:eloZM+rIkd8g+EtXHkv/iD4eqoSHdmOhUU9va6vyDb8e1mDZi:IoZtL+EP8eqoSHdmOhUU9va6vQmA

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\vvvv.exe
    "C:\Users\Admin\AppData\Local\Temp\vvvv.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2664
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3680

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/2664-0-0x0000023557850000-0x0000023557890000-memory.dmp

    Filesize

    256KB

  • memory/2664-1-0x00007FFAD8270000-0x00007FFAD8D31000-memory.dmp

    Filesize

    10.8MB

  • memory/2664-2-0x0000023557C40000-0x0000023557C50000-memory.dmp

    Filesize

    64KB

  • memory/2664-4-0x00007FFAD8270000-0x00007FFAD8D31000-memory.dmp

    Filesize

    10.8MB