Analysis

  • max time kernel
    90s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/02/2024, 02:01

General

  • Target
    90bd6a2befe67eb6685e7a937e939357.exe
  • Size 672KB
  • Sample240205-cfrsmaaaap
  • SHA256 97c9697556fe5859d26367d8b5df16c8e428786601ca21a445b5942cf1256f94
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Ardamax

    A keylogger first seen in 2013.

  • Ardamax main executable 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\90bd6a2befe67eb6685e7a937e939357.exe
    "C:\Users\Admin\AppData\Local\Temp\90bd6a2befe67eb6685e7a937e939357.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3856
    • C:\Users\Admin\AppData\Local\Temp\Exporer32.exe
      "C:\Users\Admin\AppData\Local\Temp\Exporer32.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1468
      • C:\Windows\SysWOW64\28463\SECR.exe
        "C:\Windows\system32\28463\SECR.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in System32 directory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4860

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        PCGWIN32.LI5

        • Path C:\ProgramData\jI82l\PCGWIN32.LI5
        • Size 2KB
        • SHA256 1bc880e9a519475110ceae6375cf4bae1111634c4f9c0abb6950fa6ec520f1b1
        • MD5 SHA1 SHA512

        @5360.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\@5360.tmp
        • Size 4KB
        • SHA256 fd9c203a32eec0afe4ab1e3ae02c68ac27649120bb3f0af68852ba487384ecaf
        • MD5 SHA1 SHA512 SSDEEP

        Exporer32.exe

        • Path C:\Users\Admin\AppData\Local\Temp\Exporer32.exe
        • Size 496KB
        • SHA256 c1236d25b0e7bacad481a861e1cabed3e6ce9704e4205142f536935cc9c10f7d
        • MD5 SHA1 SHA512 SSDEEP

        AKV.exe

        • Path C:\Windows\SysWOW64\28463\AKV.exe
        • Size 407KB
        • SHA256 e6164ff194fb651a44db5a78d680bc19efe242f3f8e95f5aedbe1cc7f00ef4ef
        • MD5 SHA1 SHA512 SSDEEP

        SECR.001

        • Path C:\Windows\SysWOW64\28463\SECR.001
        • Size 382B
        • SHA256 f24d37f976ca4a2fbf71f59f6fe0c5a957c4906a8a13934a56bd863cdd94a0aa
        • MD5 SHA1 SHA512

        SECR.006

        • Path C:\Windows\SysWOW64\28463\SECR.006
        • Size 8KB
        • SHA256 894ff0262900acdc5b0266f75b2db829d3dec9a059f28888d5c0997d5b76db8a
        • MD5 SHA1 SHA512 SSDEEP

        SECR.007

        • Path C:\Windows\SysWOW64\28463\SECR.007
        • Size 5KB
        • SHA256 b9939a330a7cf6d9947a2b3ffb52170a35d5927e401016e7694fdd24ba1aa4ef
        • MD5 SHA1 SHA512 SSDEEP

        SECR.exe

        • Path C:\Windows\SysWOW64\28463\SECR.exe
        • Size 513KB
        • SHA256 800bdf00e09f302a17e22d26dffbea037e3c077ef9f6d1d585c114f079397a9e
        • MD5 SHA1 SHA512 SSDEEP

        memory/3856-24-0x0000000000400000-0x000000000042C000-memory.dmp

        memory/3856-25-0x0000000002170000-0x0000000002187000-memory.dmp

        memory/3856-0-0x0000000000400000-0x000000000042C000-memory.dmp

        memory/3856-1-0x0000000002170000-0x0000000002187000-memory.dmp

        memory/4860-44-0x0000000002230000-0x0000000002231000-memory.dmp

        memory/4860-48-0x0000000002230000-0x0000000002231000-memory.dmp