Analysis

  • max time kernel
    293s
  • max time network
    299s
  • 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, 22:50

General

  • Target
    416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe
  • Size 4.9MB
  • Sample240530-2r72esdf74
  • SHA256 416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e
  • 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\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe
    "C:\Users\Admin\AppData\Local\Temp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1424
    • C:\Users\Admin\AppData\Local\Temp\is-42G2Q.tmp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-42G2Q.tmp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp" /SL5="$7021C,4836427,54272,C:\Users\Admin\AppData\Local\Temp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2708
      • C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
        "C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4432
      • C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
        "C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:5096

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        stereotool32.exe

        • Path C:\Users\Admin\AppData\Local\Stereo Tool\stereotool32.exe
        • Size 3.0MB
        • SHA256 7f1de671a637afdee839e731a18713f4a4bce1af5c6cb597622e31798ade0e63
        • MD5 SHA1 SHA512 SSDEEP

        416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-42G2Q.tmp\416b95bd4a366a20d0ebbed15929bd7f7ca2d1ca8f14c53a064ba44682c4c65e.tmp
        • Size 680KB
        • SHA256 3f93f208a112fac1c2fa79cab9829339bc479d2d6585c2e997465e986da5e6f7
        • MD5 SHA1 SHA512 SSDEEP

        _iscrypt.dll

        • Path \Users\Admin\AppData\Local\Temp\is-F1KDJ.tmp\_isetup\_iscrypt.dll
        • Size 2KB
        • SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
        • MD5 SHA1 SHA512

        memory/1424-0-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/1424-2-0x0000000000401000-0x000000000040B000-memory.dmp

        memory/1424-67-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/2708-12-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/2708-68-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/4432-59-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/4432-60-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/4432-64-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-78-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-97-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-75-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-69-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-81-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-84-0x0000000000940000-0x00000000009E2000-memory.dmp

        memory/5096-86-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-91-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-94-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-72-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-100-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-103-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-106-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-109-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-112-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-115-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-119-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-122-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-125-0x0000000000400000-0x000000000070A000-memory.dmp

        memory/5096-128-0x0000000000400000-0x000000000070A000-memory.dmp