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Analysis

  • max time kernel
    78s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/03/2023, 05:35

General

  • Target

    c14dfbc33876ec82c3705cc8cedad7dda10646b4fd9d12c468d786187422bee7.exe

  • Size

    308KB

  • MD5

    3b32570cfc08329e3bf2624f727ead3f

  • SHA1

    6f15ad55aab802e2c963c7d95d605cfd9e189ea3

  • SHA256

    c14dfbc33876ec82c3705cc8cedad7dda10646b4fd9d12c468d786187422bee7

  • SHA512

    9c380ea7111f6ebc335ddb5dd42b7f9b4ae32f93debfac83dfd544790fd644173b1b2d7685fb18801520eabc93fd3919b0c89d96519ed4bf0a2fec754fa5ebc8

  • SSDEEP

    6144:bOsY+HgEiTA14Xn0Ti8v1bbFgXIQdjrfzNt18EP3:i814Xn0Ti8tbJyIQdjrfzmEP3

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c14dfbc33876ec82c3705cc8cedad7dda10646b4fd9d12c468d786187422bee7.exe
    "C:\Users\Admin\AppData\Local\Temp\c14dfbc33876ec82c3705cc8cedad7dda10646b4fd9d12c468d786187422bee7.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4912
    • C:\Users\Admin\AppData\Local\Temp\c14dfbc33876ec82c3705cc8cedad7dda10646b4fd9d12c468d786187422bee7.exe
      "C:\Users\Admin\AppData\Local\Temp\c14dfbc33876ec82c3705cc8cedad7dda10646b4fd9d12c468d786187422bee7.exe" -h
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:3096
  • C:\Windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
    1⤵
    • Process spawned unexpected child process
    • Suspicious use of WriteProcessMemory
    PID:2916
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
      2⤵
      • Loads dropped DLL
      PID:4924
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4924 -s 600
        3⤵
        • Program crash
        PID:3284
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4924 -ip 4924
    1⤵
      PID:3668

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\db.dat

      Filesize

      557KB

      MD5

      535677ceb05cbea48bc25b52a5c2da67

      SHA1

      52906724f2135086417fffb42a60cf6f0d55362d

      SHA256

      c685c604b16270bb5417594aa58f7c532e617d21f61ffe683a03c387dbbddefc

      SHA512

      c812b3612a00afffce17613629b72a6ac43a10f7ca69376c5e3dc87d1f60e6c38432ec73de74279c6e32ca20a47e8bbd23ef06fb7be50d46494701f1bcdcfb3b

    • C:\Users\Admin\AppData\Local\Temp\db.dll

      Filesize

      52KB

      MD5

      1b20e998d058e813dfc515867d31124f

      SHA1

      c9dc9c42a748af18ae1a8c882b90a2b9e3313e6f

      SHA256

      24a53033a2e89acf65f6a5e60d35cb223585817032635e81bf31264eb7dabd00

      SHA512

      79849fbdb9a9e7f7684b570d14662448b093b8aa2b23dfd95856db3a78faf75a95d95c51b8aa8506c4fbecffebcc57cd153dda38c830c05b8cd38629fae673c6

    • C:\Users\Admin\AppData\Local\Temp\db.dll

      Filesize

      52KB

      MD5

      1b20e998d058e813dfc515867d31124f

      SHA1

      c9dc9c42a748af18ae1a8c882b90a2b9e3313e6f

      SHA256

      24a53033a2e89acf65f6a5e60d35cb223585817032635e81bf31264eb7dabd00

      SHA512

      79849fbdb9a9e7f7684b570d14662448b093b8aa2b23dfd95856db3a78faf75a95d95c51b8aa8506c4fbecffebcc57cd153dda38c830c05b8cd38629fae673c6