Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/12/2024, 00:09

General

  • Target
    SnSetup1.7.exe
  • Size 601KB
  • Sample241214-afpbdstmgr
  • SHA256 91f02fafb1a3ab7a20761d308d7a1f224e889cb0bc43daadf9d9cb5d5c6e65e3
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 16 IoCs
  • Drops file in Program Files directory 32 IoCs
  • Drops file in Windows directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 16 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SnSetup1.7.exe
    "C:\Users\Admin\AppData\Local\Temp\SnSetup1.7.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1972
    • C:\Program Files (x86)\SUDT\SUDT SerialNull\Install.exe
      "C:\Program Files (x86)\SUDT\SUDT SerialNull\Install.exe" -u
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Checks SCSI registry key(s)
      PID:2400
    • C:\Program Files (x86)\SUDT\SUDT SerialNull\Install.exe
      "C:\Program Files (x86)\SUDT\SUDT SerialNull\Install.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:3060
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k DcomLaunch -p -s DeviceInstall
    1⤵
    • Drops file in Windows directory
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:804
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "4" "0" "C:\Users\Admin\AppData\Local\Temp\{8ffaeb9e-8f18-bb41-8be4-9c4c56772c1e}\snbus.inf" "9" "4c49640e7" "0000000000000100" "WinSta0\Default" "0000000000000158" "208" "C:\Program Files (x86)\SUDT\SUDT SerialNull"
      2⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      PID:2092
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "4" "0" "C:\Users\Admin\AppData\Local\Temp\{05a4a71f-6e97-f64c-85df-42a2411c4447}\snserial.inf" "9" "449a1470b" "0000000000000158" "WinSta0\Default" "000000000000015C" "208" "C:\Program Files (x86)\SUDT\SUDT SerialNull"
      2⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      PID:3148
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "4" "0" "C:\Users\Admin\AppData\Local\Temp\{4a66c3a3-cd07-054d-bb91-b6ffe7c5e4e4}\snbus.inf" "9" "4c49640e7" "000000000000015C" "WinSta0\Default" "000000000000017C" "208" "C:\Program Files (x86)\SUDT\SUDT SerialNull"
      2⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      PID:1676
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "4" "0" "C:\Users\Admin\AppData\Local\Temp\{8b9396b0-5480-744f-ba59-2bf8c5470c1c}\snserial.inf" "9" "449a1470b" "000000000000017C" "WinSta0\Default" "0000000000000100" "208" "C:\Program Files (x86)\SUDT\SUDT SerialNull"
      2⤵
      • Drops file in System32 directory
      • Drops file in Windows directory
      PID:4480

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        SerialNull.exe

        • Path C:\Program Files (x86)\SUDT\SUDT SerialNull\SerialNull.exe
        • Size 193KB
        • SHA256 502f20ca9cf7259a73217d3144fdd2aefb697b997717b5a16e9c92a2d276afc9
        • MD5 SHA1 SHA512 SSDEEP

        install.exe

        • Path C:\Program Files (x86)\SUDT\SUDT SerialNull\install.exe
        • Size 57KB
        • SHA256 0d03931dae04b1d6cae8d3745c3aff6315e0df8c6b0bb2589fe77b50580e88f6
        • MD5 SHA1 SHA512 SSDEEP

        snbus.inf

        • Path C:\Program Files (x86)\SUDT\SUDT SerialNull\snbus.inf
        • Size 1KB
        • SHA256 3804a768e956d3f30666258972b3215b738fdd58383b8ea808d31042f4fda439
        • MD5 SHA1 SHA512

        snserial.inf

        • Path C:\Program Files (x86)\SUDT\SUDT SerialNull\snserial.inf
        • Size 1KB
        • SHA256 392e836b5a9cdbba0f9b4eb8346a6c0281c134c070a40d99a2c71ad0d2362520
        • MD5 SHA1 SHA512

        Header.bmp

        • Path C:\Users\Admin\AppData\Local\Temp\nsaA077.tmp\Header.bmp
        • Size 27KB
        • SHA256 46fbe97a281202d59414e0ca9a68009b8423ff5fdbc0027f4a309b588c9af7ec
        • MD5 SHA1 SHA512 SSDEEP

        LangDLL.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsaA077.tmp\LangDLL.dll
        • Size 5KB
        • SHA256 da006773e11871b8834036c30acab8fabcce2c9e9f52bb2b425f947bdf33f7c6
        • MD5 SHA1 SHA512 SSDEEP

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsaA077.tmp\System.dll
        • Size 10KB
        • SHA256 9090e47d239aa1da9598a483861165e0153c01ad9ff9d65cb6c0f4497a1da5b3
        • MD5 SHA1 SHA512 SSDEEP