Analysis

  • max time kernel
    291s
  • max time network
    288s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    30/05/2024, 22:45

General

  • Target
    35a88fd7e97963557b4147ed2d46e0e1eb7fd7244797844fcd24761f12492b21.exe
  • Size 5.3MB
  • Sample240530-2pvcjsce4w
  • SHA256 35a88fd7e97963557b4147ed2d46e0e1eb7fd7244797844fcd24761f12492b21
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 2 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\35a88fd7e97963557b4147ed2d46e0e1eb7fd7244797844fcd24761f12492b21.exe
    "C:\Users\Admin\AppData\Local\Temp\35a88fd7e97963557b4147ed2d46e0e1eb7fd7244797844fcd24761f12492b21.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2968
    • C:\Users\Admin\AppData\Local\Temp\is-VEI25.tmp\35a88fd7e97963557b4147ed2d46e0e1eb7fd7244797844fcd24761f12492b21.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-VEI25.tmp\35a88fd7e97963557b4147ed2d46e0e1eb7fd7244797844fcd24761f12492b21.tmp" /SL5="$601FE,5349242,54272,C:\Users\Admin\AppData\Local\Temp\35a88fd7e97963557b4147ed2d46e0e1eb7fd7244797844fcd24761f12492b21.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:308
      • C:\Users\Admin\AppData\Local\Turquoise CD Player\cdplayer.exe
        "C:\Users\Admin\AppData\Local\Turquoise CD Player\cdplayer.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1572
      • C:\Users\Admin\AppData\Local\Turquoise CD Player\cdplayer.exe
        "C:\Users\Admin\AppData\Local\Turquoise CD Player\cdplayer.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2384

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        35a88fd7e97963557b4147ed2d46e0e1eb7fd7244797844fcd24761f12492b21.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-VEI25.tmp\35a88fd7e97963557b4147ed2d46e0e1eb7fd7244797844fcd24761f12492b21.tmp
        • Size 680KB
        • SHA256 a5681e01514ac58b8f172078e7de5567e98f028104a1d88655b88bfdddfe8bfc
        • MD5 SHA1 SHA512 SSDEEP

        cdplayer.exe

        • Path C:\Users\Admin\AppData\Local\Turquoise CD Player\cdplayer.exe
        • Size 2.9MB
        • SHA256 8062548ec2648fcb5b55b0b3a70a1da8e7ef821b93668cd5ff9b270d7513f788
        • MD5 SHA1 SHA512 SSDEEP

        _iscrypt.dll

        • Path \Users\Admin\AppData\Local\Temp\is-C165B.tmp\_isetup\_iscrypt.dll
        • Size 2KB
        • SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
        • MD5 SHA1 SHA512

        _isdecmp.dll

        • Path \Users\Admin\AppData\Local\Temp\is-C165B.tmp\_isetup\_isdecmp.dll
        • Size 32KB
        • SHA256 e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67
        • MD5 SHA1 SHA512 SSDEEP

        memory/308-74-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/308-10-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/1572-69-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/1572-65-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/1572-66-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-84-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-97-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-134-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-131-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-75-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-78-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-81-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-128-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-87-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-90-0x0000000000AC0000-0x0000000000B62000-memory.dmp

        memory/2384-94-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-72-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-100-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-103-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-106-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-109-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-112-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-115-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-118-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-121-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2384-124-0x0000000000400000-0x00000000006E1000-memory.dmp

        memory/2968-0-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/2968-3-0x0000000000401000-0x000000000040B000-memory.dmp

        memory/2968-73-0x0000000000400000-0x0000000000414000-memory.dmp