Analysis

  • max time kernel
    292s
  • max time network
    298s
  • 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, 23:07

General

  • Target
    7525da42711f4c3d8bdddea4d1006536c64e861d887ba4b33f8c6bfa0f6508fa.exe
  • Size 4.7MB
  • Sample240530-23129add2t
  • SHA256 7525da42711f4c3d8bdddea4d1006536c64e861d887ba4b33f8c6bfa0f6508fa
  • 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 1 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\7525da42711f4c3d8bdddea4d1006536c64e861d887ba4b33f8c6bfa0f6508fa.exe
    "C:\Users\Admin\AppData\Local\Temp\7525da42711f4c3d8bdddea4d1006536c64e861d887ba4b33f8c6bfa0f6508fa.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4888
    • C:\Users\Admin\AppData\Local\Temp\is-H39DP.tmp\7525da42711f4c3d8bdddea4d1006536c64e861d887ba4b33f8c6bfa0f6508fa.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-H39DP.tmp\7525da42711f4c3d8bdddea4d1006536c64e861d887ba4b33f8c6bfa0f6508fa.tmp" /SL5="$1101F4,4722441,54272,C:\Users\Admin\AppData\Local\Temp\7525da42711f4c3d8bdddea4d1006536c64e861d887ba4b33f8c6bfa0f6508fa.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1492
      • C:\Users\Admin\AppData\Local\Vaer Video Recorder\vaervideorecorder.exe
        "C:\Users\Admin\AppData\Local\Vaer Video Recorder\vaervideorecorder.exe" -i
        3⤵
        • Executes dropped EXE
        PID:204
      • C:\Users\Admin\AppData\Local\Vaer Video Recorder\vaervideorecorder.exe
        "C:\Users\Admin\AppData\Local\Vaer Video Recorder\vaervideorecorder.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4720

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        7525da42711f4c3d8bdddea4d1006536c64e861d887ba4b33f8c6bfa0f6508fa.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-H39DP.tmp\7525da42711f4c3d8bdddea4d1006536c64e861d887ba4b33f8c6bfa0f6508fa.tmp
        • Size 680KB
        • SHA256 bbfcaecc64b36dcb118ba9136246dfd943f3b70812c6a949f9b507a46282dbc3
        • MD5 SHA1 SHA512 SSDEEP

        vaervideorecorder.exe

        • Path C:\Users\Admin\AppData\Local\Vaer Video Recorder\vaervideorecorder.exe
        • Size 2.9MB
        • SHA256 9ac8e9a2b7440e795d4027b47ca956b7a706ab9597a1019da57a8c133cbafb9a
        • MD5 SHA1 SHA512 SSDEEP

        _iscrypt.dll

        • Path \Users\Admin\AppData\Local\Temp\is-EJTL5.tmp\_isetup\_iscrypt.dll
        • Size 2KB
        • SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
        • MD5 SHA1 SHA512

        memory/204-63-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/204-59-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/204-60-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/1492-68-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/1492-16-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/4720-81-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-91-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-128-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-125-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-69-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-72-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-75-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-78-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-122-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-82-0x0000000000950000-0x00000000009F2000-memory.dmp

        memory/4720-86-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-65-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-94-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-97-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-100-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-103-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-106-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-109-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-112-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-115-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4720-119-0x0000000000400000-0x00000000006EA000-memory.dmp

        memory/4888-0-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/4888-2-0x0000000000401000-0x000000000040B000-memory.dmp

        memory/4888-67-0x0000000000400000-0x0000000000414000-memory.dmp