Analysis

  • max time kernel
    91s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220718-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-07-2022 15:36

General

  • Target

    4f115913a68ae3d442205bf35920d2b8431bd7a3995a72a648b682fdd783efd1.exe

  • Size

    191KB

  • MD5

    08bc0f08cbe773666ae684ed81c1763c

  • SHA1

    6ef5d42a110a6746d23fe001f2762f31d43c391f

  • SHA256

    4f115913a68ae3d442205bf35920d2b8431bd7a3995a72a648b682fdd783efd1

  • SHA512

    029e25bdff3b4cd61e98ec37a82b2d1d31eb7b4d03dd467e05f4eacb9e52a73189f2755b0b6906f1b811b0a78c38ddb15e6ced05cb47bd870814f15ef7b6ed17

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 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.

  • Modifies registry class 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4f115913a68ae3d442205bf35920d2b8431bd7a3995a72a648b682fdd783efd1.exe
    "C:\Users\Admin\AppData\Local\Temp\4f115913a68ae3d442205bf35920d2b8431bd7a3995a72a648b682fdd783efd1.exe"
    1⤵
    • Drops file in Drivers directory
    • Checks computer location settings
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3516
    • C:\Users\Admin\AppData\Local\dplaysvr.exe
      "C:\Users\Admin\AppData\Local\dplaysvr.exe" C:\Users\Admin\AppData\Local\Temp\4f115913a68ae3d442205bf35920d2b8431bd7a3995a72a648b682fdd783efd1.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      PID:4472
  • C:\Windows\SysWOW64\DllHost.exe
    C:\Windows\SysWOW64\DllHost.exe /Processid:{3AD05575-8857-4850-9277-11B85BDB8E09}
    1⤵
      PID:1892

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\741B.tmp

      Filesize

      77KB

      MD5

      1ba3e906a6012b5abf2750b445d7f30a

      SHA1

      a2c6ef8aa49c8c2549eadf1d41d0b39850d4a09e

      SHA256

      9fd947eebbd6c83b4d94c39f017a5366ccfef9d6bd2dee41b86ae81a09022d02

      SHA512

      ef69e5abf1445a4d9135d23236c39a149681f5b86b745ff8d7d0041eddc31e90464b2fb1611e2e57c009afe64b004cae0466794c806b2a0b4eb5d52b1afa2c2e

    • C:\Users\Admin\AppData\Local\Temp\741C.tmp

      Filesize

      121KB

      MD5

      00fa7a4b8b0daf60f5935b34d7325ce3

      SHA1

      0988e042f7df078ac386c3ae1c70ffccda4025a3

      SHA256

      45eb8a8e170e06673bc60be26f9c66509d7af934923e4a643234313ec3dc540b

      SHA512

      3af0d3031bdf7773ab1b0615f45993c4f3e30a405496f4f59c1b4ac4e16ec207e62e54630b314e29963bdb69fedbe71364983f278c2389cf0679d70464448404

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

      Filesize

      77KB

      MD5

      1ba3e906a6012b5abf2750b445d7f30a

      SHA1

      a2c6ef8aa49c8c2549eadf1d41d0b39850d4a09e

      SHA256

      9fd947eebbd6c83b4d94c39f017a5366ccfef9d6bd2dee41b86ae81a09022d02

      SHA512

      ef69e5abf1445a4d9135d23236c39a149681f5b86b745ff8d7d0041eddc31e90464b2fb1611e2e57c009afe64b004cae0466794c806b2a0b4eb5d52b1afa2c2e

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

      Filesize

      77KB

      MD5

      1ba3e906a6012b5abf2750b445d7f30a

      SHA1

      a2c6ef8aa49c8c2549eadf1d41d0b39850d4a09e

      SHA256

      9fd947eebbd6c83b4d94c39f017a5366ccfef9d6bd2dee41b86ae81a09022d02

      SHA512

      ef69e5abf1445a4d9135d23236c39a149681f5b86b745ff8d7d0041eddc31e90464b2fb1611e2e57c009afe64b004cae0466794c806b2a0b4eb5d52b1afa2c2e

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

      Filesize

      121KB

      MD5

      00fa7a4b8b0daf60f5935b34d7325ce3

      SHA1

      0988e042f7df078ac386c3ae1c70ffccda4025a3

      SHA256

      45eb8a8e170e06673bc60be26f9c66509d7af934923e4a643234313ec3dc540b

      SHA512

      3af0d3031bdf7773ab1b0615f45993c4f3e30a405496f4f59c1b4ac4e16ec207e62e54630b314e29963bdb69fedbe71364983f278c2389cf0679d70464448404

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

      Filesize

      121KB

      MD5

      00fa7a4b8b0daf60f5935b34d7325ce3

      SHA1

      0988e042f7df078ac386c3ae1c70ffccda4025a3

      SHA256

      45eb8a8e170e06673bc60be26f9c66509d7af934923e4a643234313ec3dc540b

      SHA512

      3af0d3031bdf7773ab1b0615f45993c4f3e30a405496f4f59c1b4ac4e16ec207e62e54630b314e29963bdb69fedbe71364983f278c2389cf0679d70464448404

    • memory/3516-130-0x00000000005D0000-0x0000000000604000-memory.dmp

      Filesize

      208KB

    • memory/3516-136-0x0000000000400000-0x0000000000434000-memory.dmp

      Filesize

      208KB

    • memory/3516-131-0x0000000000400000-0x0000000000434000-memory.dmp

      Filesize

      208KB

    • memory/3516-146-0x0000000000400000-0x0000000000434000-memory.dmp

      Filesize

      208KB

    • memory/4472-137-0x0000000000000000-mapping.dmp

    • memory/4472-139-0x0000000000590000-0x00000000005A8000-memory.dmp

      Filesize

      96KB

    • memory/4472-140-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/4472-141-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/4472-143-0x0000000000400000-0x0000000000418000-memory.dmp

      Filesize

      96KB

    • memory/4472-144-0x00000000020A0000-0x00000000020C3000-memory.dmp

      Filesize

      140KB

    • memory/4472-145-0x0000000002100000-0x0000000002123000-memory.dmp

      Filesize

      140KB