Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250619-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250619-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/11/2025, 07:46

General

  • Target
    factura.pdf.exe
  • Size 687KB
  • Sample251105-jmaagsyncx
  • SHA256 3b58ece6a12f3fb6798bb73e6109decd2c8901962dc0db9d0cf22a13b87b21b8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • snakekeylogger

C2
  • https://api.telegram.org/bot8248432977:AAGUzfwTYQOdpFzylKkMVaWWzVDUza8CSEE/sendMessage?chat_id=5769492467

Signatures

  • Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 2 IoCs
  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Snakekeylogger family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
  • Looks up external IP address via web service 4 IoCs

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

  • SmartAssembly .NET packer 1 IoCs

    Detects SmartAssembly .NET packer.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

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

  • Modifies registry key 1 TTPs 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\factura.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\factura.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5108
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\factura.pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4156
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5004
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ocvVHJnam" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC5A2.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:5628
    • C:\Users\Admin\AppData\Local\Temp\factura.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\factura.pdf.exe"
      2⤵
      • Modifies Windows Defender DisableAntiSpyware settings
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4572
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f
        3⤵
        • Disables RegEdit via registry modification
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:4640
  • C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe
    C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4744
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4224
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3228
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ocvVHJnam" /XML "C:\Users\Admin\AppData\Local\Temp\tmp10C4.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:5288
    • C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe
      "C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe"
      2⤵
      • Modifies Windows Defender DisableAntiSpyware settings
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:3544
      • C:\Windows\SysWOW64\REG.exe
        REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:1920

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 449cf537af82204417d22bd76eab765ba4444c6f0d3570cfa262bb22c37d3156
        • MD5 SHA1 SHA512 SSDEEP

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 ad35d18f75b88b1ed2182f59e15564313a9929dc331fcc713129e14ef1a545cd
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_rgyof52o.dfg.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rgyof52o.dfg.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmpC5A2.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpC5A2.tmp
        • Size 1KB
        • SHA256 e50880bf46bbe299c7f175e00515b49d2de475ac62d568279f912e9176da4b82
        • MD5 SHA1 SHA512

        ocvVHJnam.exe

        • Path C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe
        • Size 687KB
        • SHA256 3b58ece6a12f3fb6798bb73e6109decd2c8901962dc0db9d0cf22a13b87b21b8
        • MD5 SHA1 SHA512 SSDEEP

        memory/3228-116-0x0000000007C60000-0x0000000007C74000-memory.dmp

        memory/3228-115-0x0000000007C20000-0x0000000007C31000-memory.dmp

        memory/3228-114-0x00000000078E0000-0x0000000007983000-memory.dmp

        memory/3228-98-0x0000000071500000-0x000000007154C000-memory.dmp

        memory/4156-41-0x00000000069F0000-0x0000000006A3C000-memory.dmp

        memory/4156-63-0x0000000007E80000-0x00000000084FA000-memory.dmp

        memory/4156-18-0x00000000050F0000-0x0000000005100000-memory.dmp

        memory/4156-17-0x00000000050F0000-0x0000000005100000-memory.dmp

        memory/4156-16-0x0000000002C40000-0x0000000002C76000-memory.dmp

        memory/4156-19-0x0000000005730000-0x0000000005D58000-memory.dmp

        memory/4156-64-0x0000000007840000-0x000000000785A000-memory.dmp

        memory/4156-66-0x0000000007AC0000-0x0000000007B56000-memory.dmp

        memory/4156-22-0x0000000005E30000-0x0000000005E96000-memory.dmp

        memory/4156-23-0x0000000005EA0000-0x0000000005F06000-memory.dmp

        memory/4156-62-0x0000000007710000-0x00000000077B3000-memory.dmp

        memory/4156-61-0x0000000006AD0000-0x0000000006AEE000-memory.dmp

        memory/4156-40-0x0000000006520000-0x000000000653E000-memory.dmp

        memory/4156-44-0x00000000074D0000-0x0000000007502000-memory.dmp

        memory/4156-67-0x0000000007A40000-0x0000000007A51000-memory.dmp

        memory/4156-45-0x00000000716B0000-0x00000000716FC000-memory.dmp

        memory/4224-106-0x0000000071500000-0x000000007154C000-memory.dmp

        memory/4224-97-0x0000000005BD0000-0x0000000005C1C000-memory.dmp

        memory/4572-74-0x0000000006280000-0x00000000062D0000-memory.dmp

        memory/4572-38-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/4572-75-0x0000000006540000-0x0000000006702000-memory.dmp

        memory/5004-71-0x0000000007A80000-0x0000000007A88000-memory.dmp

        memory/5004-65-0x00000000077D0000-0x00000000077DA000-memory.dmp

        memory/5004-46-0x00000000716B0000-0x00000000716FC000-memory.dmp

        memory/5004-20-0x0000000002B50000-0x0000000002B60000-memory.dmp

        memory/5004-68-0x00000000079A0000-0x00000000079AE000-memory.dmp

        memory/5004-69-0x00000000079B0000-0x00000000079C4000-memory.dmp

        memory/5004-70-0x0000000007AA0000-0x0000000007ABA000-memory.dmp

        memory/5108-9-0x0000000005700000-0x0000000005710000-memory.dmp

        memory/5108-0-0x0000000000CF0000-0x0000000000DA2000-memory.dmp

        memory/5108-11-0x0000000007B00000-0x0000000007B9C000-memory.dmp

        memory/5108-7-0x0000000007970000-0x0000000007992000-memory.dmp

        memory/5108-6-0x0000000007920000-0x000000000793E000-memory.dmp

        memory/5108-10-0x0000000007CC0000-0x0000000007D2C000-memory.dmp

        memory/5108-5-0x0000000007550000-0x00000000078A4000-memory.dmp

        memory/5108-8-0x0000000007A40000-0x0000000007A4E000-memory.dmp

        memory/5108-4-0x00000000057B0000-0x00000000057BA000-memory.dmp

        memory/5108-3-0x0000000005700000-0x0000000005710000-memory.dmp

        memory/5108-2-0x0000000005810000-0x00000000058A2000-memory.dmp

        memory/5108-1-0x0000000005DC0000-0x0000000006364000-memory.dmp