Analysis

  • max time kernel
    81s
  • max time network
    98s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 11:09

General

  • Target

    b9ec31633a70a6fbb04e2aa3abe52587b9a5cdcea89019db45936cd0e02ec699.exe

  • Size

    296KB

  • MD5

    81ab1c6af2437eb2e800e1455573f067

  • SHA1

    ce9cadcd5756360f2e62e75538be626ef49c95c8

  • SHA256

    b9ec31633a70a6fbb04e2aa3abe52587b9a5cdcea89019db45936cd0e02ec699

  • SHA512

    c2915e2d100c41dcfdf2bd410c7e0e8036c58640e2986392ed013f67354be8e3be1ac3cc5e9ae19998278879ef7362ee8d8eb70ef7d19ac7eb1b5bdc3a017e49

  • SSDEEP

    6144:0GXJvoHat3SeJ1cUSSD6IqtVASLv0ISIdld:1XJAHa5V6o6IeLLcWN

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9ec31633a70a6fbb04e2aa3abe52587b9a5cdcea89019db45936cd0e02ec699.exe
    "C:\Users\Admin\AppData\Local\Temp\b9ec31633a70a6fbb04e2aa3abe52587b9a5cdcea89019db45936cd0e02ec699.exe"
    1⤵
    • Drops file in Drivers directory
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1252
    • C:\Users\Admin\AppData\Local\dplaysvr.exe
      "C:\Users\Admin\AppData\Local\dplaysvr.exe" C:\Users\Admin\AppData\Local\Temp\b9ec31633a70a6fbb04e2aa3abe52587b9a5cdcea89019db45936cd0e02ec699.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of UnmapMainImage
      PID:1688
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{3AD05575-8857-4850-9277-11B85BDB8E09}
    1⤵
      PID:676

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\74C3.tmp

      Filesize

      120KB

      MD5

      fa177b19810aab654f90901f0bf4aa5a

      SHA1

      a4b85aba037ba3e34a565b240a98edac4512f044

      SHA256

      ef2bb74b710a805c8330b3bac5930cfd8338cfceea61d0ae509c1bb06c41180d

      SHA512

      ed3a38e50cc3e32d47d3f3b804ccfe73f607ac6c1874e3dddd52006818a4a025109bdb2f7c5f2d95a1ecbe2de1aa0cdc893a83a79dfe3412428fb3d6d45480aa

    • C:\Users\Admin\AppData\Local\Temp\74C4.tmp

      Filesize

      49KB

      MD5

      35e5f9b769951356d41169c722b1d530

      SHA1

      71cd17fb9644cfa3472fdf28efb99d116987166b

      SHA256

      2e337c4cae86cd7f2add2e047676920ae1fe7a91b350735ae27e53725ed965e3

      SHA512

      91e94990c18166f4cfb7ae3f179e7b66506dd2850aed1701dc4019b806e36e190f1fc63b1750005720fec14f6c08178a007f6805a49e8bf40f0ccc343a2a76e6

    • C:\Users\Admin\AppData\Local\dplaysvr.exe

      Filesize

      120KB

      MD5

      fa177b19810aab654f90901f0bf4aa5a

      SHA1

      a4b85aba037ba3e34a565b240a98edac4512f044

      SHA256

      ef2bb74b710a805c8330b3bac5930cfd8338cfceea61d0ae509c1bb06c41180d

      SHA512

      ed3a38e50cc3e32d47d3f3b804ccfe73f607ac6c1874e3dddd52006818a4a025109bdb2f7c5f2d95a1ecbe2de1aa0cdc893a83a79dfe3412428fb3d6d45480aa

    • C:\Users\Admin\AppData\Local\dplaysvr.exe

      Filesize

      120KB

      MD5

      fa177b19810aab654f90901f0bf4aa5a

      SHA1

      a4b85aba037ba3e34a565b240a98edac4512f044

      SHA256

      ef2bb74b710a805c8330b3bac5930cfd8338cfceea61d0ae509c1bb06c41180d

      SHA512

      ed3a38e50cc3e32d47d3f3b804ccfe73f607ac6c1874e3dddd52006818a4a025109bdb2f7c5f2d95a1ecbe2de1aa0cdc893a83a79dfe3412428fb3d6d45480aa

    • C:\Users\Admin\AppData\Local\dplayx.dll

      Filesize

      49KB

      MD5

      35e5f9b769951356d41169c722b1d530

      SHA1

      71cd17fb9644cfa3472fdf28efb99d116987166b

      SHA256

      2e337c4cae86cd7f2add2e047676920ae1fe7a91b350735ae27e53725ed965e3

      SHA512

      91e94990c18166f4cfb7ae3f179e7b66506dd2850aed1701dc4019b806e36e190f1fc63b1750005720fec14f6c08178a007f6805a49e8bf40f0ccc343a2a76e6

    • \Users\Admin\AppData\Local\dplaysvr.exe

      Filesize

      120KB

      MD5

      fa177b19810aab654f90901f0bf4aa5a

      SHA1

      a4b85aba037ba3e34a565b240a98edac4512f044

      SHA256

      ef2bb74b710a805c8330b3bac5930cfd8338cfceea61d0ae509c1bb06c41180d

      SHA512

      ed3a38e50cc3e32d47d3f3b804ccfe73f607ac6c1874e3dddd52006818a4a025109bdb2f7c5f2d95a1ecbe2de1aa0cdc893a83a79dfe3412428fb3d6d45480aa

    • \Users\Admin\AppData\Local\dplayx.dll

      Filesize

      49KB

      MD5

      35e5f9b769951356d41169c722b1d530

      SHA1

      71cd17fb9644cfa3472fdf28efb99d116987166b

      SHA256

      2e337c4cae86cd7f2add2e047676920ae1fe7a91b350735ae27e53725ed965e3

      SHA512

      91e94990c18166f4cfb7ae3f179e7b66506dd2850aed1701dc4019b806e36e190f1fc63b1750005720fec14f6c08178a007f6805a49e8bf40f0ccc343a2a76e6

    • memory/1252-78-0x0000000000400000-0x0000000000432000-memory.dmp

      Filesize

      200KB

    • memory/1252-64-0x00000000002A0000-0x00000000002D2000-memory.dmp

      Filesize

      200KB

    • memory/1252-65-0x00000000004C0000-0x000000000050D000-memory.dmp

      Filesize

      308KB

    • memory/1252-54-0x0000000076381000-0x0000000076383000-memory.dmp

      Filesize

      8KB

    • memory/1252-66-0x0000000000400000-0x000000000044D000-memory.dmp

      Filesize

      308KB

    • memory/1252-70-0x0000000000400000-0x000000000044D000-memory.dmp

      Filesize

      308KB

    • memory/1688-67-0x0000000000270000-0x0000000000281000-memory.dmp

      Filesize

      68KB

    • memory/1688-69-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/1688-71-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/1688-68-0x0000000000290000-0x00000000002B0000-memory.dmp

      Filesize

      128KB

    • memory/1688-73-0x0000000000400000-0x0000000000411000-memory.dmp

      Filesize

      68KB

    • memory/1688-74-0x00000000002F0000-0x00000000002F9000-memory.dmp

      Filesize

      36KB

    • memory/1688-75-0x0000000000300000-0x0000000000311000-memory.dmp

      Filesize

      68KB

    • memory/1688-76-0x00000000003B0000-0x00000000003B9000-memory.dmp

      Filesize

      36KB

    • memory/1688-77-0x00000000003B0000-0x00000000003B9000-memory.dmp

      Filesize

      36KB

    • memory/1688-61-0x0000000000000000-mapping.dmp