Analysis

  • max time kernel
    126s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    11/01/2024, 07:51

General

  • Target
    6bf91b07dee48c48359b2f92f72b3e5a.exe
  • Size 4.6MB
  • Sample240111-jptrxacgd9
  • SHA256 211560aabd0a46ef0dde5f5a94bfefa3d1cad47ae133f526844d19dc623aad20
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect Socks5Systemz Payload 5 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 10 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6bf91b07dee48c48359b2f92f72b3e5a.exe
    "C:\Users\Admin\AppData\Local\Temp\6bf91b07dee48c48359b2f92f72b3e5a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Users\Admin\AppData\Local\Temp\is-CPODG.tmp\is-PH0AD.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-CPODG.tmp\is-PH0AD.tmp" /SL4 $400EC "C:\Users\Admin\AppData\Local\Temp\6bf91b07dee48c48359b2f92f72b3e5a.exe" 4639005 431616
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2164
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" helpmsg 1111
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2632
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 helpmsg 1111
          4⤵
            PID:2948
        • C:\Users\Admin\AppData\Local\IMAP test plugin\imaptestplugin.exe
          "C:\Users\Admin\AppData\Local\IMAP test plugin\imaptestplugin.exe" -i
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2968
        • C:\Users\Admin\AppData\Local\IMAP test plugin\imaptestplugin.exe
          "C:\Users\Admin\AppData\Local\IMAP test plugin\imaptestplugin.exe" -s
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2832

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          imaptestplugin.exe

          • Path C:\Users\Admin\AppData\Local\IMAP test plugin\imaptestplugin.exe
          • Size 382KB
          • SHA256 ac5323cdbfb5ab254e4cd170f4163c3b30d6ce66364b6e1db94073e7d8d65f42
          • MD5 SHA1 SHA512 SSDEEP

          is-PH0AD.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\is-CPODG.tmp\is-PH0AD.tmp
          • Size 321KB
          • SHA256 dcd3a58a2e70da5c4438b38aed62efd27d3cf6e0382f7d24eb9ae23b997ab2bd
          • MD5 SHA1 SHA512 SSDEEP

          imaptestplugin.exe

          • Path \Users\Admin\AppData\Local\IMAP test plugin\imaptestplugin.exe
          • Size 1024KB
          • SHA256 3be1aad3ff8619b31d538f8c5d15121c0eeebf7d93082424335ba65a116af99f
          • MD5 SHA1 SHA512 SSDEEP

          imaptestplugin.exe

          • Path \Users\Admin\AppData\Local\IMAP test plugin\imaptestplugin.exe
          • Size 381KB
          • SHA256 3b97446a9f635dddaf33202696b41049563f9d842b7d48c12651c017f34e726d
          • MD5 SHA1 SHA512 SSDEEP

          imaptestplugin.exe

          • Path \Users\Admin\AppData\Local\IMAP test plugin\imaptestplugin.exe
          • Size 95KB
          • SHA256 834c7c221e1f521f25210d25d62f01c65bfcbc1c5ace3483e4fe97c1fe87566a
          • MD5 SHA1 SHA512 SSDEEP

          _iscrypt.dll

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

          _shfoldr.dll

          • Path \Users\Admin\AppData\Local\Temp\is-AACKT.tmp\_isetup\_shfoldr.dll
          • Size 22KB
          • SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
          • MD5 SHA1 SHA512 SSDEEP

          is-PH0AD.tmp

          • Path \Users\Admin\AppData\Local\Temp\is-CPODG.tmp\is-PH0AD.tmp
          • Size 642KB
          • SHA256 2e7e5e01fa3d18a2a76e33dd139dbf251f1dd2ab77aba843b7ef09e51cd86c1a
          • MD5 SHA1 SHA512 SSDEEP

          memory/2164-139-0x0000000000400000-0x00000000004CF000-memory.dmp

          memory/2164-117-0x0000000003600000-0x0000000003808000-memory.dmp

          memory/2164-132-0x0000000003600000-0x0000000003808000-memory.dmp

          memory/2536-138-0x0000000000400000-0x0000000000470000-memory.dmp

          memory/2536-2-0x0000000000400000-0x0000000000470000-memory.dmp

          memory/2536-0-0x0000000000400000-0x0000000000470000-memory.dmp

          memory/2832-151-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-161-0x0000000002A30000-0x0000000002AD2000-memory.dmp

          memory/2832-133-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-135-0x0000000000BB0000-0x0000000000DB8000-memory.dmp

          memory/2832-134-0x0000000000BB0000-0x0000000000DB8000-memory.dmp

          memory/2832-189-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-137-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-186-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-181-0x0000000002A30000-0x0000000002AD2000-memory.dmp

          memory/2832-140-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-145-0x0000000000BB0000-0x0000000000DB8000-memory.dmp

          memory/2832-144-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-143-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-148-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-182-0x0000000002A30000-0x0000000002AD2000-memory.dmp

          memory/2832-167-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-171-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-160-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-157-0x0000000002A30000-0x0000000002AD2000-memory.dmp

          memory/2832-164-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-154-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-168-0x0000000002A30000-0x0000000002AD2000-memory.dmp

          memory/2832-180-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-174-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2832-177-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2968-120-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2968-123-0x0000000000C90000-0x0000000000E98000-memory.dmp

          memory/2968-126-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2968-127-0x0000000000400000-0x0000000000608000-memory.dmp

          memory/2968-124-0x0000000000400000-0x0000000000608000-memory.dmp