Analysis

  • max time kernel
    150s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/01/2024, 14:02

General

  • Target
    80049891c0070c6b8f3c0a08e6b13808.exe
  • Size 341KB
  • Sample240129-rch4mschal
  • SHA256 e5213f30aae396aa26326565a3baf243675769980db242a69565617d233099b9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Ardamax

    A keylogger first seen in 2013.

  • Ardamax main executable 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\80049891c0070c6b8f3c0a08e6b13808.exe
    "C:\Users\Admin\AppData\Local\Temp\80049891c0070c6b8f3c0a08e6b13808.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:4140
    • C:\Windows\SysWOW64\28463\NNAQ.exe
      "C:\Windows\system32\28463\NNAQ.exe"
      2⤵
      • Executes dropped EXE
      PID:2600
    • C:\Users\Admin\AppData\Local\Temp\MyMobster.exe
      "C:\Users\Admin\AppData\Local\Temp\MyMobster.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:388

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        @C553.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\@C553.tmp
        • Size 4KB
        • SHA256 a49cb9cbab2a60418b2079d4110123682fc980bb6b46ac5ada144797b5fa2cf4
        • MD5 SHA1 SHA512

        MyMobster.exe

        • Path C:\Users\Admin\AppData\Local\Temp\MyMobster.exe
        • Size 220KB
        • SHA256 3867a334cefbee868af92fb739f426e436a2e774ab9e7f5dac3281ab253c8268
        • MD5 SHA1 SHA512 SSDEEP

        NNAQ.001

        • Path C:\Windows\SysWOW64\28463\NNAQ.001
        • Size 510B
        • SHA256 7261f2a699982df47d8a285dc8df96ec3d5a5f91f42386aa575a62597733aa63
        • MD5 SHA1 SHA512

        NNAQ.006

        • Path C:\Windows\SysWOW64\28463\NNAQ.006
        • Size 8KB
        • SHA256 b796bd1f5cdb1d1db91c3aca1ac700c015775b9caf2725fbf4b6089a096f21c5
        • MD5 SHA1 SHA512 SSDEEP

        NNAQ.007

        • Path C:\Windows\SysWOW64\28463\NNAQ.007
        • Size 5KB
        • SHA256 4ba88f8964ee02a395d88974fd43b05610cf520b4ab40f36b3f98715ce1e0984
        • MD5 SHA1 SHA512 SSDEEP

        NNAQ.exe

        • Path C:\Windows\SysWOW64\28463\NNAQ.exe
        • Size 472KB
        • SHA256 ded1c934280294375d7b926773511e4d5e6c8dbb22b0dd25a80a6b0b3af065d3
        • MD5 SHA1 SHA512 SSDEEP

        memory/2600-33-0x0000000000490000-0x0000000000491000-memory.dmp