Analysis

  • max time kernel
    135s
  • max time network
    190s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/01/2024, 19:56

General

  • Target

    41c532f60be5f9091588fe33c9e42fca.dll

  • Size

    70KB

  • MD5

    41c532f60be5f9091588fe33c9e42fca

  • SHA1

    66409a4416c28af83fb2e4e1a84a6e7e82decdc0

  • SHA256

    dd5fca4816d8cb6c449dba92f53b9949d1d3f49976e0b23cc9bebc1c1ce5f266

  • SHA512

    bb23832a9e7e6b7b9755771663a404ae7e99799a44e75b5a4a331450c6b2c6ea82ab22e36e7e38afc5f00ffec1ae2efe38e9b26fe4929e4c471d5d760e200778

  • SSDEEP

    1536:FS8H/Io1a4ID8sAgciC4ebDWTpTTZz/w:FS8Hgo4TD8sA36pTTZz/w

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\41c532f60be5f9091588fe33c9e42fca.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2788
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\41c532f60be5f9091588fe33c9e42fca.dll,#1
      2⤵
      • Checks computer location settings
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2436
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\DelEx.bat" "
        3⤵
          PID:5044

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\DelEx.bat

            Filesize

            152B

            MD5

            5390347822bd255bcb75299cfef33c78

            SHA1

            1ca8c7165dbe2c25ccba5810643e5f6ea47a27fc

            SHA256

            740c230b59e7cec944d0247d25043068a2398d17730e9b950d6267685f3bf43f

            SHA512

            8f2476b7fa1042c6100e57b7cae97e296ec7de71950826593714bb54126c215c19e0fad0f653c2f6848c1332cb115a37403d241e6ae0740c269a53fa451f780c