Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    11/08/2024, 10:26

General

  • Target
    34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.exe
  • Size 3.7MB
  • Sample240811-mg2dkavhqk
  • SHA256 34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect Socks5Systemz Payload 3 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.

  • 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\34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.exe
    "C:\Users\Admin\AppData\Local\Temp\34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4012
    • C:\Users\Admin\AppData\Local\Temp\is-VC60Q.tmp\34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-VC60Q.tmp\34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.tmp" /SL5="$50108,3564417,54272,C:\Users\Admin\AppData\Local\Temp\34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.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:3652
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:6096
      • C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
        "C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe" -s
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5248

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        _iscrypt.dll

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

        34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\is-VC60Q.tmp\34aafc02c00121fa34646aeb5abdd1c253ed74817d82a53c6b38f643b52081ce.tmp
        • Size 692KB
        • SHA256 8d33851dabd3a3d8701eb8d48b7da5d6bdc73d178ae9d567c35e87e0a1060926
        • MD5 SHA1 SHA512 SSDEEP

        xulplayer.exe

        • Path C:\Users\Admin\AppData\Local\XULPlayer\xulplayer.exe
        • Size 3.9MB
        • SHA256 70da0077e3906752c3f3463e1fa3a1a0fd72d413e4a073190fb95a90a808837a
        • MD5 SHA1 SHA512 SSDEEP

        memory/3652-7-0x0000000000400000-0x00000000004BD000-memory.dmp

        memory/3652-62-0x0000000000400000-0x00000000004BD000-memory.dmp

        memory/4012-61-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/4012-2-0x0000000000401000-0x000000000040B000-memory.dmp

        memory/4012-1-0x0000000000400000-0x0000000000414000-memory.dmp

        memory/5248-86-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-79-0x0000000000B00000-0x0000000000BA2000-memory.dmp

        memory/5248-60-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-110-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-107-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-63-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-66-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-67-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-70-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-73-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-76-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-103-0x0000000000B00000-0x0000000000BA2000-memory.dmp

        memory/5248-80-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-102-0x0000000000B00000-0x0000000000BA2000-memory.dmp

        memory/5248-89-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-92-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-95-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-98-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/5248-101-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/6096-52-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/6096-57-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/6096-53-0x0000000000400000-0x00000000007E0000-memory.dmp

        memory/6096-55-0x0000000000400000-0x00000000007E0000-memory.dmp