Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    100s
  • 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
    09/03/2023, 01:30

General

  • Target

    a1c5f268d670ba3a4440647bdeaa3e20.exe

  • Size

    308KB

  • MD5

    a1c5f268d670ba3a4440647bdeaa3e20

  • SHA1

    e79227b1a17dc76882f9eef1d65eb7588cce21a4

  • SHA256

    1868f0807fb9ad9be1629bc214b755ede9937036622ef31ae877617aba840080

  • SHA512

    7d43dd7edf54e5853eeea1636e3d05b7880f420d3cfdefc133e53287bb6814ac17921603922ac6c469540564a04d7a6504da5e79d711faff4148b0e7f68c2527

  • SSDEEP

    6144:bOsY+HgEiTA14Xn0Ti8v1bbFgXIQdjrfzNt1zEP3:i814Xn0Ti8tbJyIQdjrfzBEP3

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\a1c5f268d670ba3a4440647bdeaa3e20.exe
    "C:\Users\Admin\AppData\Local\Temp\a1c5f268d670ba3a4440647bdeaa3e20.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3796
    • C:\Users\Admin\AppData\Local\Temp\a1c5f268d670ba3a4440647bdeaa3e20.exe
      "C:\Users\Admin\AppData\Local\Temp\a1c5f268d670ba3a4440647bdeaa3e20.exe" -h
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:4668
  • 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:1524
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
      2⤵
      • Loads dropped DLL
      PID:4444
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4444 -s 600
        3⤵
        • Program crash
        PID:388
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4444 -ip 4444
    1⤵
      PID:404

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      557KB

      MD5

      54ac3dad9676bf56d6d5916d099b7859

      SHA1

      02a2b6459c451069a81aebaf1fa7753b663f4c6a

      SHA256

      e0e68ac4dc7141316a94c076f2b503e104207bcc2746dfa9e0c64a17bc984a0a

      SHA512

      7239359a7e22eb6a12ab370d52666fd67247d50dd52a58fffe2998ab16916088da7b15dd28c25bedc29f7ad4889f5e7a0f53cff94ea38843fc8060760d124c1d

    • 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