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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/01/2025, 10:09

General

  • Target

    PO202501A.exe

  • Size

    255KB

  • MD5

    2a39ab7049226dec986fa602a26f5372

  • SHA1

    f0baf3b4f1dbcc6dd21e6f1279c741c0051c03cc

  • SHA256

    ad4cd780bd7accd7482dcf6222910aafee971c7ab870ebae0022d51b237fa5cb

  • SHA512

    5190d06d07b72f8ebaf326b6c0fcd85963afe598be499afee11881905ded944b58829a6ddc85a94f75621e5936496e151a1d8b4b96d12d38148a1f256841dafa

  • SSDEEP

    6144:WIaCAK/UGjgTPD/CRe4GvTS8w9hzc9ap+zGj:hz7KmH9tp1

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7328132851:AAGjxJzgHhOy6CKcH2zQWuOPw-Si4v2MtvU/sendMessage?chat_id=7467176655

Signatures

  • VIPKeylogger

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

  • Vipkeylogger family
  • Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 2 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.

  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 64 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 2 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 3 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO202501A.exe
    "C:\Users\Admin\AppData\Local\Temp\PO202501A.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Windows\SYSTEM32\cmd.exe
      "cmd.exe" /C cmd.exe /C reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "PO202501A" /t REG_SZ /d "cmd.exe /C start \"\" /D \"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RootServices\" \"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RootServices\PO202501A.exe\"" /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:772
      • C:\Windows\system32\cmd.exe
        cmd.exe /C reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "PO202501A" /t REG_SZ /d "cmd.exe /C start \"\" /D \"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RootServices\" \"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RootServices\PO202501A.exe\"" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4100
        • C:\Windows\system32\reg.exe
          reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "PO202501A" /t REG_SZ /d "cmd.exe /C start \"\" /D \"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RootServices\" \"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RootServices\PO202501A.exe\"" /f
          4⤵
          • Adds Run key to start application
          PID:3656
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3836
    • C:\Windows\SYSTEM32\cmd.exe
      "cmd.exe" /C cmd.exe /C reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "PO202501A" /t REG_SZ /d "cmd.exe /C start \"\" /D \"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RootServices\" \"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RootServices\PO202501A.exe\"" /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4280
      • C:\Windows\system32\cmd.exe
        cmd.exe /C reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "PO202501A" /t REG_SZ /d "cmd.exe /C start \"\" /D \"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RootServices\" \"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RootServices\PO202501A.exe\"" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3192
        • C:\Windows\system32\reg.exe
          reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "PO202501A" /t REG_SZ /d "cmd.exe /C start \"\" /D \"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RootServices\" \"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RootServices\PO202501A.exe\"" /f
          4⤵
          • Adds Run key to start application
          PID:3356
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2552

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RootServices\wct3B4.tmp

    Filesize

    63KB

    MD5

    e516a60bc980095e8d156b1a99ab5eee

    SHA1

    238e243ffc12d4e012fd020c9822703109b987f6

    SHA256

    543796a1b343b4ebc0285d89cb8eb70667ac7b513da37495e38003704e9d88d7

    SHA512

    9b51e99ba20e9da56d1acc24a1cf9f9c9dbdeb742bec034e0ff2bc179a60f4aff249f40344f9ddd43229dcdefa1041940f65afb336d46c175ffeff725c638d58

  • memory/1888-2-0x0000024D0E310000-0x0000024D0E320000-memory.dmp

    Filesize

    64KB

  • memory/3836-42-0x0000000005C30000-0x00000000061D4000-memory.dmp

    Filesize

    5.6MB

  • memory/3836-41-0x00000000750CE000-0x00000000750CF000-memory.dmp

    Filesize

    4KB

  • memory/3836-43-0x0000000005560000-0x00000000055FC000-memory.dmp

    Filesize

    624KB

  • memory/3836-44-0x00000000750C0000-0x0000000075870000-memory.dmp

    Filesize

    7.7MB

  • memory/3836-40-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/3836-85-0x0000000006930000-0x0000000006AF2000-memory.dmp

    Filesize

    1.8MB

  • memory/3836-86-0x00000000067B0000-0x0000000006800000-memory.dmp

    Filesize

    320KB

  • memory/3836-87-0x00000000750CE000-0x00000000750CF000-memory.dmp

    Filesize

    4KB

  • memory/3836-88-0x0000000007030000-0x000000000755C000-memory.dmp

    Filesize

    5.2MB

  • memory/3836-89-0x00000000750C0000-0x0000000075870000-memory.dmp

    Filesize

    7.7MB

  • memory/3836-90-0x0000000006B00000-0x0000000006B92000-memory.dmp

    Filesize

    584KB

  • memory/3836-91-0x0000000006900000-0x000000000690A000-memory.dmp

    Filesize

    40KB