Analysis

  • max time kernel
    188s
  • max time network
    243s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    08-05-2022 06:21

General

  • Target

    fb967b582dc38a1ba32d719beef322ffc90d82fd529b9fe280e8bfdaf2058de7.exe

  • Size

    228KB

  • MD5

    c167956e7b3bcb9087c0f740f3c3f167

  • SHA1

    cf449afc6f00a8414eb108d3c38b2f3749475e4e

  • SHA256

    fb967b582dc38a1ba32d719beef322ffc90d82fd529b9fe280e8bfdaf2058de7

  • SHA512

    66d2bfbf09b12ef5081e3351f070db3d43b1db4c0e8c6938eca1fd0382ca703ff6a67ef46a92a2cc7f752213fd7d0c9eaeceefef744753a325e8b518d45f4a3b

Score
10/10

Malware Config

Signatures

  • OnlyLogger

    A tiny loader that uses IPLogger to get its payload.

  • OnlyLogger Payload 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fb967b582dc38a1ba32d719beef322ffc90d82fd529b9fe280e8bfdaf2058de7.exe
    "C:\Users\Admin\AppData\Local\Temp\fb967b582dc38a1ba32d719beef322ffc90d82fd529b9fe280e8bfdaf2058de7.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3472
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "fb967b582dc38a1ba32d719beef322ffc90d82fd529b9fe280e8bfdaf2058de7.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\fb967b582dc38a1ba32d719beef322ffc90d82fd529b9fe280e8bfdaf2058de7.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2132
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im "fb967b582dc38a1ba32d719beef322ffc90d82fd529b9fe280e8bfdaf2058de7.exe" /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2096
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3472 -s 1276
      2⤵
      • Program crash
      PID:2932
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3472 -ip 3472
    1⤵
      PID:4836

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/2096-134-0x0000000000000000-mapping.dmp

    • memory/2132-133-0x0000000000000000-mapping.dmp

    • memory/3472-130-0x0000000001153000-0x000000000117B000-memory.dmp

      Filesize

      160KB

    • memory/3472-131-0x0000000000FA0000-0x0000000000FE6000-memory.dmp

      Filesize

      280KB

    • memory/3472-132-0x0000000000400000-0x0000000000F96000-memory.dmp

      Filesize

      11.6MB