Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-11-2023 11:31

General

  • Target

    Vigo_Perm_Unban.exe

  • Size

    231KB

  • MD5

    cfa56d70ed0ea4d1ebfd6952e840787f

  • SHA1

    7414f2b22dda079c566df2fea6d067dd3ef77f75

  • SHA256

    a1c965d8b6a12590647fd41d124e260b7ffe6394f2b3a68a972847132f17f0de

  • SHA512

    c78296ac937a2461773cdfd07b200eb004e7d6135fdd169df878ea4bd1f6ccbd90d980760efb529c606d0df6d4838d06d7b63ad36a5c662540f2c6d35d09991a

  • SSDEEP

    6144:RloZM+rIkd8g+EtXHkv/iD4SOIQClk8e1mpSi:joZtL+EP8UscH

Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Vigo_Perm_Unban.exe
    "C:\Users\Admin\AppData\Local\Temp\Vigo_Perm_Unban.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4488
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3948
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1836-13-0x0000016865BC0000-0x0000016865BC1000-memory.dmp

    Filesize

    4KB

  • memory/1836-7-0x0000016865BC0000-0x0000016865BC1000-memory.dmp

    Filesize

    4KB

  • memory/1836-17-0x0000016865BC0000-0x0000016865BC1000-memory.dmp

    Filesize

    4KB

  • memory/1836-16-0x0000016865BC0000-0x0000016865BC1000-memory.dmp

    Filesize

    4KB

  • memory/1836-5-0x0000016865BC0000-0x0000016865BC1000-memory.dmp

    Filesize

    4KB

  • memory/1836-6-0x0000016865BC0000-0x0000016865BC1000-memory.dmp

    Filesize

    4KB

  • memory/1836-15-0x0000016865BC0000-0x0000016865BC1000-memory.dmp

    Filesize

    4KB

  • memory/1836-11-0x0000016865BC0000-0x0000016865BC1000-memory.dmp

    Filesize

    4KB

  • memory/1836-14-0x0000016865BC0000-0x0000016865BC1000-memory.dmp

    Filesize

    4KB

  • memory/1836-12-0x0000016865BC0000-0x0000016865BC1000-memory.dmp

    Filesize

    4KB

  • memory/4488-0-0x000001E21E190000-0x000001E21E1D0000-memory.dmp

    Filesize

    256KB

  • memory/4488-1-0x00007FFDF6D30000-0x00007FFDF77F1000-memory.dmp

    Filesize

    10.8MB

  • memory/4488-4-0x00007FFDF6D30000-0x00007FFDF77F1000-memory.dmp

    Filesize

    10.8MB

  • memory/4488-2-0x000001E220050000-0x000001E220060000-memory.dmp

    Filesize

    64KB