Analysis

  • max time kernel
    143s
  • max time network
    130s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    01/06/2024, 22:06

General

  • Target
    86c49253c9cbe93273707b65538e7d64b69be676abf89fae9885467ae2974a24.exe
  • Size 6.5MB
  • Sample240601-11kf2sha55
  • SHA256 86c49253c9cbe93273707b65538e7d64b69be676abf89fae9885467ae2974a24
  • 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.

  • 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\86c49253c9cbe93273707b65538e7d64b69be676abf89fae9885467ae2974a24.exe
    "C:\Users\Admin\AppData\Local\Temp\86c49253c9cbe93273707b65538e7d64b69be676abf89fae9885467ae2974a24.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3004
    • C:\Users\Admin\AppData\Local\Temp\is-LG3OJ.tmp\86c49253c9cbe93273707b65538e7d64b69be676abf89fae9885467ae2974a24.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-LG3OJ.tmp\86c49253c9cbe93273707b65538e7d64b69be676abf89fae9885467ae2974a24.tmp" /SL5="$6020E,6615196,54272,C:\Users\Admin\AppData\Local\Temp\86c49253c9cbe93273707b65538e7d64b69be676abf89fae9885467ae2974a24.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2628
      • C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe
        "C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4144
      • C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe
        "C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3492

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        berryplayer32.exe

        • Path C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe
        • Size 5.2MB
        • SHA256 f44d3da400f3c189f7853dbbb449701595b90e41da989e5b4b7282ab99b10ffb
        • MD5 SHA1 SHA512 SSDEEP

        _iscrypt.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-2703Q.tmp\_isetup\_iscrypt.dll
        • Size 2KB
        • SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
        • MD5 SHA1 SHA512

        86c49253c9cbe93273707b65538e7d64b69be676abf89fae9885467ae2974a24.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-LG3OJ.tmp\86c49253c9cbe93273707b65538e7d64b69be676abf89fae9885467ae2974a24.tmp
        • Size 680KB
        • SHA256 66e0c4091239948306890f2749f8c9af121efe1b8c9ee09b479d2e2e6a489d0b
        • MD5 SHA1 SHA512 SSDEEP

        memory/2628-16-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/2628-70-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/3004-69-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/3004-3-0x0000000000401000-0x000000000040B000-memory.dmp

        memory/3004-0-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/3492-96-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/3492-88-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/3492-68-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/3492-117-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/3492-114-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/3492-71-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/3492-74-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/3492-77-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/3492-80-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/3492-83-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/3492-86-0x0000000000C70000-0x0000000000D12000-memory.dmp

        memory/3492-110-0x0000000000C70000-0x0000000000D12000-memory.dmp

        memory/3492-93-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/3492-109-0x0000000000C70000-0x0000000000D12000-memory.dmp

        memory/3492-99-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/3492-102-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/3492-105-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/3492-108-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/4144-59-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/4144-60-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/4144-64-0x0000000000400000-0x0000000000936000-memory.dmp

        memory/4144-65-0x0000000000400000-0x0000000000936000-memory.dmp