Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 12 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.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 26 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:1636
    • C:\Program Files (x86)\SUDT\SUDT SerialNull\Install.exe
      "C:\Program Files (x86)\SUDT\SUDT SerialNull\Install.exe" -u
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2680
    • C:\Program Files (x86)\SUDT\SUDT SerialNull\Install.exe
      "C:\Program Files (x86)\SUDT\SUDT SerialNull\Install.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:1880
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "4" "0" "C:\Users\Admin\AppData\Local\Temp\{7cd529da-555f-31a1-cc77-832d70373975}\snbus.inf" "9" "6c49640e7" "0000000000000570" "WinSta0\Default" "00000000000005AC" "208" "C:\Program Files (x86)\SUDT\SUDT SerialNull"
    1⤵
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2592
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Windows\system32\pnpui.dll,InstallSecurityPromptRunDllW 10 Global\{55b21c07-c5dd-1f77-d0ab-b36d2979e83c} Global\{0fb3b0e3-ce41-233c-c3f6-b67414eb5d49} C:\Windows\System32\DriverStore\Temp\{6d1d6cee-18a9-23f5-c7f8-3c358080a000}\snbus.inf
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3068
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "4" "0" "C:\Users\Admin\AppData\Local\Temp\{35e40b2e-d2fe-5c9e-84fe-e04c9906e56d}\snserial.inf" "9" "649a1470b" "00000000000005AC" "WinSta0\Default" "0000000000000320" "208" "C:\Program Files (x86)\SUDT\SUDT SerialNull"
    1⤵
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1812
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Windows\system32\pnpui.dll,InstallSecurityPromptRunDllW 10 Global\{7b1592b0-1bc6-3c1f-f2c2-8c6b61b77448} Global\{48976aa9-6653-1e3a-4826-3434cd244e11} C:\Windows\System32\DriverStore\Temp\{58dfabe5-62b0-211e-4310-3e3d2acacb46}\snserial.inf
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2764
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "4" "0" "C:\Users\Admin\AppData\Local\Temp\{471745f5-9260-4688-2cc5-4069f742cb3a}\snbus.inf" "9" "6c49640e7" "0000000000000320" "WinSta0\Default" "000000000000055C" "208" "C:\Program Files (x86)\SUDT\SUDT SerialNull"
    1⤵
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:844
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Windows\system32\pnpui.dll,InstallSecurityPromptRunDllW 10 Global\{2e777d02-3af9-4f3a-950d-6c536af4db40} Global\{16615ac8-d2dd-326c-cb4f-8a66dc5c071a} C:\Windows\System32\DriverStore\Temp\{15afac35-5ac8-1661-3a53-253b54e93653}\snbus.inf
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2908
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "4" "0" "C:\Users\Admin\AppData\Local\Temp\{18ab5816-6acb-078a-1570-943f8ff0f64b}\snserial.inf" "9" "649a1470b" "000000000000055C" "WinSta0\Default" "0000000000000570" "208" "C:\Program Files (x86)\SUDT\SUDT SerialNull"
    1⤵
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2640
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Windows\system32\pnpui.dll,InstallSecurityPromptRunDllW 10 Global\{39082f18-7636-2896-6378-825d5370bf02} Global\{2bf52721-4f68-004a-ecf2-cb39f31cbe1e} C:\Windows\System32\DriverStore\Temp\{5e6da0ba-3426-5611-4ece-fb6bed48f646}\snserial.inf
      2⤵
        PID:2212

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          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

          DMI753F.tmp.log.xml

          • Path C:\Users\Admin\AppData\Local\Temp\DMI753F.tmp.log.xml
          • Size 2KB
          • SHA256 a671779765423d603cfe0dad9a88ae7c294ac657c7e7ad6b9723c58163fb541c
          • MD5 SHA1 SHA512

          Header.bmp

          • Path C:\Users\Admin\AppData\Local\Temp\nsyE061.tmp\Header.bmp
          • Size 27KB
          • SHA256 46fbe97a281202d59414e0ca9a68009b8423ff5fdbc0027f4a309b588c9af7ec
          • MD5 SHA1 SHA512 SSDEEP

          SerialNull.exe

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

          install.exe

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

          LangDLL.dll

          • Path \Users\Admin\AppData\Local\Temp\nsyE061.tmp\LangDLL.dll
          • Size 5KB
          • SHA256 da006773e11871b8834036c30acab8fabcce2c9e9f52bb2b425f947bdf33f7c6
          • MD5 SHA1 SHA512 SSDEEP

          System.dll

          • Path \Users\Admin\AppData\Local\Temp\nsyE061.tmp\System.dll
          • Size 10KB
          • SHA256 9090e47d239aa1da9598a483861165e0153c01ad9ff9d65cb6c0f4497a1da5b3
          • MD5 SHA1 SHA512 SSDEEP

          memory/1636-39-0x0000000002B20000-0x0000000002B30000-memory.dmp

          memory/1636-90-0x0000000002B20000-0x0000000002B30000-memory.dmp

          memory/1636-91-0x0000000002B70000-0x0000000002B80000-memory.dmp