Analysis

  • max time kernel
    143s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/08/2024, 01:00

General

  • Target
    adcde787a75fa1df4c1e1abf54c13cbfaf014f6b910c074bfae4576a900834d2.exe
  • Size 3.8MB
  • Sample240802-bcn2wswdkn
  • SHA256 adcde787a75fa1df4c1e1abf54c13cbfaf014f6b910c074bfae4576a900834d2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\adcde787a75fa1df4c1e1abf54c13cbfaf014f6b910c074bfae4576a900834d2.exe
    "C:\Users\Admin\AppData\Local\Temp\adcde787a75fa1df4c1e1abf54c13cbfaf014f6b910c074bfae4576a900834d2.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:468
    • C:\Users\Admin\AppData\Local\Temp\is-DAJAJ.tmp\adcde787a75fa1df4c1e1abf54c13cbfaf014f6b910c074bfae4576a900834d2.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-DAJAJ.tmp\adcde787a75fa1df4c1e1abf54c13cbfaf014f6b910c074bfae4576a900834d2.tmp" /SL5="$C005C,3726069,54272,C:\Users\Admin\AppData\Local\Temp\adcde787a75fa1df4c1e1abf54c13cbfaf014f6b910c074bfae4576a900834d2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2844
      • C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\midi2mp3converter.exe
        "C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\midi2mp3converter.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:4772
      • C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\midi2mp3converter.exe
        "C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\midi2mp3converter.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2688

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        midi2mp3converter.exe

        • Path C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\midi2mp3converter.exe
        • Size 4.1MB
        • SHA256 f5b551713297360c003b01424dd3346a7089230e684c6a54c8e80d6726d9e8af
        • MD5 SHA1 SHA512 SSDEEP

        adcde787a75fa1df4c1e1abf54c13cbfaf014f6b910c074bfae4576a900834d2.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-DAJAJ.tmp\adcde787a75fa1df4c1e1abf54c13cbfaf014f6b910c074bfae4576a900834d2.tmp
        • Size 692KB
        • SHA256 6059cf705655b57218e452b220a688be54e99f4e98b94c7b35ec6334625c301c
        • MD5 SHA1 SHA512 SSDEEP

        _iscrypt.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-ODVTE.tmp\_isetup\_iscrypt.dll
        • Size 2KB
        • SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
        • MD5 SHA1 SHA512

        memory/468-61-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/468-2-0x0000000000401000-0x000000000040B000-memory.dmp

        memory/468-0-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/2688-88-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2688-91-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2688-109-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2688-106-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2688-59-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2688-102-0x00000000009A0000-0x0000000000A42000-memory.dmp

        memory/2688-101-0x00000000009A0000-0x0000000000A42000-memory.dmp

        memory/2688-63-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2688-66-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2688-69-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2688-72-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2688-75-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2688-78-0x00000000009A0000-0x0000000000A42000-memory.dmp

        memory/2688-82-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2688-85-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2688-100-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2688-97-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2688-94-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/2844-16-0x0000000000400000-0x00000000004BD000-memory.dmp

        memory/2844-62-0x0000000000400000-0x00000000004BD000-memory.dmp

        memory/4772-53-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/4772-52-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/4772-57-0x0000000000400000-0x0000000000815000-memory.dmp

        memory/4772-54-0x0000000000400000-0x0000000000815000-memory.dmp