Analysis

  • max time kernel
    150s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/08/2024, 01:01

General

  • Target
    0b0bbb98c9fab6db2e8c2e3a09f2f6ee998b73894c77fd17cdce2757024e0455.exe
  • Size 4.0MB
  • Sample240812-bdlm6ascpg
  • SHA256 0b0bbb98c9fab6db2e8c2e3a09f2f6ee998b73894c77fd17cdce2757024e0455
  • 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 3 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.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0b0bbb98c9fab6db2e8c2e3a09f2f6ee998b73894c77fd17cdce2757024e0455.exe
    "C:\Users\Admin\AppData\Local\Temp\0b0bbb98c9fab6db2e8c2e3a09f2f6ee998b73894c77fd17cdce2757024e0455.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Users\Admin\AppData\Local\Temp\is-FRL43.tmp\0b0bbb98c9fab6db2e8c2e3a09f2f6ee998b73894c77fd17cdce2757024e0455.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-FRL43.tmp\0b0bbb98c9fab6db2e8c2e3a09f2f6ee998b73894c77fd17cdce2757024e0455.tmp" /SL5="$A0064,3880008,54272,C:\Users\Admin\AppData\Local\Temp\0b0bbb98c9fab6db2e8c2e3a09f2f6ee998b73894c77fd17cdce2757024e0455.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2860
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:3104
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2804

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        0b0bbb98c9fab6db2e8c2e3a09f2f6ee998b73894c77fd17cdce2757024e0455.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-FRL43.tmp\0b0bbb98c9fab6db2e8c2e3a09f2f6ee998b73894c77fd17cdce2757024e0455.tmp
        • Size 692KB
        • SHA256 20fea1e5fc629afb3a4f3aa818e7c00c66b692e2d6180c7ba64a246fd9d5d847
        • MD5 SHA1 SHA512 SSDEEP

        _iscrypt.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-RMLF3.tmp\_isetup\_iscrypt.dll
        • Size 2KB
        • SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
        • MD5 SHA1 SHA512

        _isdecmp.dll

        • Path C:\Users\Admin\AppData\Local\Temp\is-RMLF3.tmp\_isetup\_isdecmp.dll
        • Size 13KB
        • SHA256 e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
        • MD5 SHA1 SHA512 SSDEEP

        xulplayer32_64.exe

        • Path C:\Users\Admin\AppData\Local\XULPlayer\xulplayer32_64.exe
        • Size 3.3MB
        • SHA256 950eb214c8aaa1aef01266126441cb55ab8216bf0989778f2f1973af02ead85b
        • MD5 SHA1 SHA512 SSDEEP

        memory/1668-66-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/1668-2-0x0000000000401000-0x000000000040B000-memory.dmp

        memory/1668-0-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/2804-90-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2804-96-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2804-112-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2804-109-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2804-65-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2804-105-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2804-102-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2804-68-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2804-71-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2804-74-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2804-77-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2804-80-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2804-82-0x0000000000A70000-0x0000000000B12000-memory.dmp

        memory/2804-85-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2804-99-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2804-93-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/2860-10-0x0000000000400000-0x00000000004BD000-memory.dmp

        memory/2860-67-0x0000000000400000-0x00000000004BD000-memory.dmp

        memory/3104-59-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/3104-58-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/3104-61-0x0000000000400000-0x000000000074A000-memory.dmp

        memory/3104-62-0x0000000000400000-0x000000000074A000-memory.dmp