Analysis

  • max time kernel
    123s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/06/2024, 01:00

General

  • Target
    0551d5b1e252916fa78d6d35dcf39f21ecebfd3c4997997daaa33e55daab7f91.exe
  • Size 6.3MB
  • Sample240602-bc1qpadc5x
  • SHA256 0551d5b1e252916fa78d6d35dcf39f21ecebfd3c4997997daaa33e55daab7f91
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Detects executables packed with VMProtect. 18 IoCs
  • 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\0551d5b1e252916fa78d6d35dcf39f21ecebfd3c4997997daaa33e55daab7f91.exe
    "C:\Users\Admin\AppData\Local\Temp\0551d5b1e252916fa78d6d35dcf39f21ecebfd3c4997997daaa33e55daab7f91.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1056
    • C:\Users\Admin\AppData\Local\Temp\is-BISVO.tmp\0551d5b1e252916fa78d6d35dcf39f21ecebfd3c4997997daaa33e55daab7f91.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-BISVO.tmp\0551d5b1e252916fa78d6d35dcf39f21ecebfd3c4997997daaa33e55daab7f91.tmp" /SL5="$60170,6386951,54272,C:\Users\Admin\AppData\Local\Temp\0551d5b1e252916fa78d6d35dcf39f21ecebfd3c4997997daaa33e55daab7f91.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4960
      • C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe
        "C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe" -i
        3⤵
        • Executes dropped EXE
        PID:1904
      • C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe
        "C:\Users\Admin\AppData\Local\Berry Player\berryplayer32.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2588

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 47c1dd19c09c1dd4196bac4ffc58208dcd227ccb1296bb90c198e5be32c42b95
        • MD5 SHA1 SHA512 SSDEEP

        _iscrypt.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-8BTF0.tmp\_isetup\_iscrypt.dll
        • Size 2KB
        • SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
        • MD5 SHA1 SHA512

        0551d5b1e252916fa78d6d35dcf39f21ecebfd3c4997997daaa33e55daab7f91.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-BISVO.tmp\0551d5b1e252916fa78d6d35dcf39f21ecebfd3c4997997daaa33e55daab7f91.tmp
        • Size 680KB
        • SHA256 279ee27cf8ac98c8c1d1535136abdd8b14a681f05dbd74a9308f62836cc3df58
        • MD5 SHA1 SHA512 SSDEEP

        memory/1056-69-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/1056-2-0x0000000000401000-0x000000000040B000-memory.dmp

        memory/1056-0-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/1904-59-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/1904-60-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/1904-65-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/1904-64-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-74-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-88-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-117-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-71-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-114-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-77-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-80-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-83-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-86-0x00000000009F0000-0x0000000000A92000-memory.dmp

        memory/2588-68-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-93-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-96-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-99-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-102-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-105-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-108-0x0000000000400000-0x0000000000907000-memory.dmp

        memory/2588-110-0x00000000009F0000-0x0000000000A92000-memory.dmp

        memory/2588-109-0x00000000009F0000-0x0000000000A92000-memory.dmp

        memory/4960-7-0x0000000000400000-0x00000000004BA000-memory.dmp

        memory/4960-70-0x0000000000400000-0x00000000004BA000-memory.dmp