Analysis

  • max time kernel
    140s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-09-2024 09:01

General

  • Target

    fb714d59bcb67c0910c8f4ee0c5f0e62.exe

  • Size

    48KB

  • MD5

    fb714d59bcb67c0910c8f4ee0c5f0e62

  • SHA1

    f22ffe25d693ccf771b5ae60b373f4c74551b317

  • SHA256

    25ad9ca13dc1ee44d8c3a3d0fba9365d9e9fd65db1411a0f720dd036d11911f3

  • SHA512

    24dac934a89ab30379331251749947af7817ed4c661a5b247a12177d1c3c04593da274eeea9ebfb7c6f7329916f03eb2c6c0a2d18b99358d8d14b6de48a33393

  • SSDEEP

    768:zynb12Aw5J6HC4kq5Jp9bjAzhyY55J+NStcEeUlyqgZl4p67GhPC:Ub1MsHz3JDwhyWr+N95OTga69

Malware Config

Signatures

  • Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Creates a Windows Service
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fb714d59bcb67c0910c8f4ee0c5f0e62.exe
    "C:\Users\Admin\AppData\Local\Temp\fb714d59bcb67c0910c8f4ee0c5f0e62.exe"
    1⤵
    • Server Software Component: Terminal Services DLL
    • Checks computer location settings
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\fb714d59bcb67c0910c8f4ee0c5f0e62.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2524
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 1
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1336
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "SySe"
    1⤵
      PID:496
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "SySe"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3268
      • C:\Windows\SysWOW64\SySe.exe
        C:\Windows\system32\SySe.exe "c:\program files (x86)\240634750.dll",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:5080

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\240634750.dll

      Filesize

      25KB

      MD5

      cb0426d467a62c8dc63180e84fe2fdd2

      SHA1

      15bf72abb1c002dd3b67200bac22310aafab6d9c

      SHA256

      73b2ac758264a2822ae0c61a414648f37fa1fec0c2ef125c51d7b1ad975220c8

      SHA512

      24199c817521d24441b86957d9860407d47dbd3b6d0ffedf602a9d6d1039ace784ab01e4491785861929d7bc4bf633b90fd06c77b7201e238c4368c1307ab980

    • C:\Windows\SysWOW64\SySe.exe

      Filesize

      60KB

      MD5

      889b99c52a60dd49227c5e485a016679

      SHA1

      8fa889e456aa646a4d0a4349977430ce5fa5e2d7

      SHA256

      6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

      SHA512

      08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641