Analysis

  • max time kernel
    142s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/06/2024, 01:42

General

  • Target
    4f93c1a75610c100c28b6fce293d060fa72cd240f76981ed54cab97e7d2c1ade.exe
  • Size 6.6MB
  • Sample240604-b43pcsgh9y
  • SHA256 4f93c1a75610c100c28b6fce293d060fa72cd240f76981ed54cab97e7d2c1ade
  • 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\4f93c1a75610c100c28b6fce293d060fa72cd240f76981ed54cab97e7d2c1ade.exe
    "C:\Users\Admin\AppData\Local\Temp\4f93c1a75610c100c28b6fce293d060fa72cd240f76981ed54cab97e7d2c1ade.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4488
    • C:\Users\Admin\AppData\Local\Temp\is-NELSE.tmp\4f93c1a75610c100c28b6fce293d060fa72cd240f76981ed54cab97e7d2c1ade.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-NELSE.tmp\4f93c1a75610c100c28b6fce293d060fa72cd240f76981ed54cab97e7d2c1ade.tmp" /SL5="$D0176,6640474,54272,C:\Users\Admin\AppData\Local\Temp\4f93c1a75610c100c28b6fce293d060fa72cd240f76981ed54cab97e7d2c1ade.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2240
      • C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe
        "C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1172
      • C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe
        "C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:4260

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 3e66a529ff83a2913a61c674417fafdc97109152d25e04e349be6c900ff6233a
        • MD5 SHA1 SHA512 SSDEEP

        _iscrypt.dll

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

        4f93c1a75610c100c28b6fce293d060fa72cd240f76981ed54cab97e7d2c1ade.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-NELSE.tmp\4f93c1a75610c100c28b6fce293d060fa72cd240f76981ed54cab97e7d2c1ade.tmp
        • Size 680KB
        • SHA256 66e0c4091239948306890f2749f8c9af121efe1b8c9ee09b479d2e2e6a489d0b
        • MD5 SHA1 SHA512 SSDEEP

        memory/1172-63-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/1172-59-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/1172-60-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/1172-65-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/2240-70-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/2240-10-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/4260-74-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4260-99-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4260-115-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4260-112-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4260-71-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4260-108-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4260-77-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4260-80-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4260-83-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4260-86-0x0000000000C00000-0x0000000000CA2000-memory.dmp

        memory/4260-88-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4260-93-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4260-96-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4260-68-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4260-102-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4260-105-0x0000000000400000-0x0000000000937000-memory.dmp

        memory/4488-0-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/4488-2-0x0000000000401000-0x000000000040B000-memory.dmp

        memory/4488-69-0x0000000000400000-0x0000000000414000-memory.dmp