Analysis

  • max time kernel
    144s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/06/2024, 02:47

General

  • Target
    ff36b05b255367252b40067094c23b3d7388f0efb0916fb7fe432226d195b9d6.exe
  • Size 6.5MB
  • Sample240604-c97e6sbc98
  • SHA256 ff36b05b255367252b40067094c23b3d7388f0efb0916fb7fe432226d195b9d6
  • 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 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\ff36b05b255367252b40067094c23b3d7388f0efb0916fb7fe432226d195b9d6.exe
    "C:\Users\Admin\AppData\Local\Temp\ff36b05b255367252b40067094c23b3d7388f0efb0916fb7fe432226d195b9d6.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4460
    • C:\Users\Admin\AppData\Local\Temp\is-ASBJO.tmp\ff36b05b255367252b40067094c23b3d7388f0efb0916fb7fe432226d195b9d6.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-ASBJO.tmp\ff36b05b255367252b40067094c23b3d7388f0efb0916fb7fe432226d195b9d6.tmp" /SL5="$8006A,6524690,54272,C:\Users\Admin\AppData\Local\Temp\ff36b05b255367252b40067094c23b3d7388f0efb0916fb7fe432226d195b9d6.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:368
      • C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe
        "C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4776
      • C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe
        "C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2604

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 5.1MB
        • SHA256 ff5722dd27f168daad5631639b815ac96358aa27831afc1acf7239d06367cb25
        • MD5 SHA1 SHA512 SSDEEP

        ff36b05b255367252b40067094c23b3d7388f0efb0916fb7fe432226d195b9d6.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-ASBJO.tmp\ff36b05b255367252b40067094c23b3d7388f0efb0916fb7fe432226d195b9d6.tmp
        • Size 680KB
        • SHA256 279ee27cf8ac98c8c1d1535136abdd8b14a681f05dbd74a9308f62836cc3df58
        • MD5 SHA1 SHA512 SSDEEP

        _iscrypt.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-J3JLS.tmp\_isetup\_iscrypt.dll
        • Size 2KB
        • SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
        • MD5 SHA1 SHA512

        memory/368-70-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/368-13-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/2604-96-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/2604-102-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/2604-115-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/2604-112-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/2604-108-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/2604-68-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/2604-105-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/2604-99-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/2604-71-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/2604-74-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/2604-77-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/2604-80-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/2604-83-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/2604-86-0x0000000000C00000-0x0000000000CA2000-memory.dmp

        memory/2604-90-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/2604-93-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/4460-69-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/4460-0-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/4460-2-0x0000000000401000-0x000000000040B000-memory.dmp

        memory/4776-60-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/4776-65-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/4776-63-0x0000000000400000-0x000000000091F000-memory.dmp

        memory/4776-59-0x0000000000400000-0x000000000091F000-memory.dmp