Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows11-21h2_x64
  • resource
    win11-20251015-en
  • resource tags

    arch:x64arch:x86image:win11-20251015-enlocale:en-usos:windows11-21h2-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
  • 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⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1468
    • 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:5644
    • 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:2204
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ocvVHJnam" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBF1A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:5904
    • 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:4788
      • 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:4668
  • C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe
    C:\Users\Admin\AppData\Roaming\ocvVHJnam.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5720
    • 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:5772
    • 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:5916
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ocvVHJnam" /XML "C:\Users\Admin\AppData\Local\Temp\tmp990.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:5972
    • 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:4044
      • 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:2384

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 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
        • MD5 SHA1 SHA512

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 b4b505df9ca8c47f05c28364e3cf2c56d3c10ffac687b3a2a7db597650b8f64b
        • MD5 SHA1 SHA512 SSDEEP

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 18KB
        • SHA256 5167ab82a0ed4a0ac10e0142739199e423487815c5e13fe5c0eef55621771732
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_jxsnrady.0wh.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jxsnrady.0wh.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        tmpBF1A.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\tmpBF1A.tmp
        • Size 1KB
        • SHA256 283c2f290d631bbe638ffdb8d0dd0ef4fbf7c39a40019bf352ceca387e0c43e7
        • MD5 SHA1 SHA512

        ocvVHJnam.exe

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

        memory/1468-0-0x00000000001B0000-0x0000000000262000-memory.dmp

        memory/1468-5-0x0000000006B30000-0x0000000006E87000-memory.dmp

        memory/1468-8-0x0000000006EF0000-0x0000000006EFE000-memory.dmp

        memory/1468-9-0x0000000004FE0000-0x0000000004FF0000-memory.dmp

        memory/1468-10-0x0000000007260000-0x00000000072CC000-memory.dmp

        memory/1468-11-0x0000000007090000-0x000000000712C000-memory.dmp

        memory/1468-1-0x00000000052D0000-0x0000000005876000-memory.dmp

        memory/1468-6-0x0000000006EB0000-0x0000000006ECE000-memory.dmp

        memory/1468-2-0x0000000004DC0000-0x0000000004E52000-memory.dmp

        memory/1468-3-0x0000000004FE0000-0x0000000004FF0000-memory.dmp

        memory/1468-4-0x0000000004D20000-0x0000000004D2A000-memory.dmp

        memory/1468-7-0x0000000006F00000-0x0000000006F22000-memory.dmp

        memory/2204-22-0x0000000005510000-0x0000000005576000-memory.dmp

        memory/2204-23-0x0000000005C20000-0x0000000005C86000-memory.dmp

        memory/2204-51-0x00000000708C0000-0x000000007090C000-memory.dmp

        memory/2204-63-0x0000000007790000-0x00000000077A1000-memory.dmp

        memory/2204-20-0x0000000004F40000-0x0000000004F50000-memory.dmp

        memory/2204-58-0x0000000007420000-0x00000000074C4000-memory.dmp

        memory/2204-65-0x00000000077D0000-0x00000000077E5000-memory.dmp

        memory/2204-66-0x00000000078D0000-0x00000000078EA000-memory.dmp

        memory/4788-74-0x0000000007010000-0x00000000071D2000-memory.dmp

        memory/4788-36-0x0000000000400000-0x0000000000426000-memory.dmp

        memory/4788-73-0x0000000006DF0000-0x0000000006E40000-memory.dmp

        memory/5644-17-0x0000000002F10000-0x0000000002F46000-memory.dmp

        memory/5644-38-0x0000000006720000-0x000000000673E000-memory.dmp

        memory/5644-60-0x0000000007A70000-0x0000000007A8A000-memory.dmp

        memory/5644-61-0x0000000007AF0000-0x0000000007AFA000-memory.dmp

        memory/5644-62-0x0000000007D00000-0x0000000007D96000-memory.dmp

        memory/5644-50-0x0000000006D00000-0x0000000006D1E000-memory.dmp

        memory/5644-64-0x0000000007CB0000-0x0000000007CBE000-memory.dmp

        memory/5644-42-0x00000000076D0000-0x0000000007704000-memory.dmp

        memory/5644-43-0x00000000708C0000-0x000000007090C000-memory.dmp

        memory/5644-67-0x0000000007DB0000-0x0000000007DB8000-memory.dmp

        memory/5644-40-0x0000000006C40000-0x0000000006C8C000-memory.dmp

        memory/5644-59-0x00000000080B0000-0x000000000872A000-memory.dmp

        memory/5644-19-0x0000000005AE0000-0x000000000610A000-memory.dmp

        memory/5644-18-0x0000000003090000-0x00000000030A0000-memory.dmp

        memory/5644-16-0x0000000003090000-0x00000000030A0000-memory.dmp

        memory/5772-94-0x00000000708B0000-0x00000000708FC000-memory.dmp

        memory/5772-101-0x0000000007C30000-0x0000000007CD4000-memory.dmp

        memory/5772-102-0x0000000007F10000-0x0000000007F21000-memory.dmp

        memory/5772-110-0x0000000007F50000-0x0000000007F65000-memory.dmp

        memory/5772-93-0x0000000006F30000-0x0000000006F7C000-memory.dmp

        memory/5916-103-0x00000000708B0000-0x00000000708FC000-memory.dmp