Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    02/06/2024, 02:09

General

  • Target
    e61eba0e66668bc3b952e9abfa32dfbc1276499ca0e3702e8dad543fd7753520.exe
  • Size 6.3MB
  • Sample240602-clgvlsfc8s
  • SHA256 e61eba0e66668bc3b952e9abfa32dfbc1276499ca0e3702e8dad543fd7753520
  • 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\e61eba0e66668bc3b952e9abfa32dfbc1276499ca0e3702e8dad543fd7753520.exe
    "C:\Users\Admin\AppData\Local\Temp\e61eba0e66668bc3b952e9abfa32dfbc1276499ca0e3702e8dad543fd7753520.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3844
    • C:\Users\Admin\AppData\Local\Temp\is-KFSOA.tmp\e61eba0e66668bc3b952e9abfa32dfbc1276499ca0e3702e8dad543fd7753520.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-KFSOA.tmp\e61eba0e66668bc3b952e9abfa32dfbc1276499ca0e3702e8dad543fd7753520.tmp" /SL5="$5023E,6387184,54272,C:\Users\Admin\AppData\Local\Temp\e61eba0e66668bc3b952e9abfa32dfbc1276499ca0e3702e8dad543fd7753520.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe
        "C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:4936
      • C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe
        "C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:3400

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 5.0MB
        • SHA256 82128a65a7d17c7588aebf4591a9323ca7ab522a9685ed3790e17409ade0838f
        • MD5 SHA1 SHA512 SSDEEP

        _iscrypt.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-22L3N.tmp\_isetup\_iscrypt.dll
        • Size 2KB
        • SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
        • MD5 SHA1 SHA512

        e61eba0e66668bc3b952e9abfa32dfbc1276499ca0e3702e8dad543fd7753520.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-KFSOA.tmp\e61eba0e66668bc3b952e9abfa32dfbc1276499ca0e3702e8dad543fd7753520.tmp
        • Size 680KB
        • SHA256 66e0c4091239948306890f2749f8c9af121efe1b8c9ee09b479d2e2e6a489d0b
        • MD5 SHA1 SHA512 SSDEEP

        memory/1476-69-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/1476-13-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/3400-96-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-74-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-115-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-111-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-67-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-108-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-105-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-70-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-73-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-99-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-77-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-80-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-83-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-86-0x0000000000B30000-0x0000000000BD2000-memory.dmp

        memory/3400-90-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-93-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3400-102-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/3844-3-0x0000000000401000-0x000000000040B000-memory.dmp

        memory/3844-0-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/3844-68-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/4936-62-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/4936-63-0x0000000000400000-0x0000000000902000-memory.dmp

        memory/4936-59-0x0000000000400000-0x0000000000902000-memory.dmp