Analysis

  • max time kernel
    180s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/12/2022, 00:28

General

  • Target

    fae216618b89fd42fade08554294d593f2fe3864ad5751129e9d412855e73bb2.exe

  • Size

    224KB

  • MD5

    390882aa077d10e80d8f0778f6d727a4

  • SHA1

    79b13e9bcbe12eb950cfbac6f4c1dd12287d613c

  • SHA256

    fae216618b89fd42fade08554294d593f2fe3864ad5751129e9d412855e73bb2

  • SHA512

    eebe70f0949daa9d0f2fd36b44a2455cfc30f4d7298075824b44b4f14419e76396737e44941067600211d210ffb2c2972799059d5830bb2f82eb5c95492be51a

  • SSDEEP

    3072:V3QcvzVYRMCKfvhd+V4SHsd8HYXfg23Qbb6oKWI8k3u5AHP:Vg1NKn+GKs5Xfmb6NWI8ke5cP

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 29 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fae216618b89fd42fade08554294d593f2fe3864ad5751129e9d412855e73bb2.exe
    "C:\Users\Admin\AppData\Local\Temp\fae216618b89fd42fade08554294d593f2fe3864ad5751129e9d412855e73bb2.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4844
    • C:\Users\Admin\zbduuc.exe
      "C:\Users\Admin\zbduuc.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4404
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3432

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\zbduuc.exe

      Filesize

      224KB

      MD5

      390882aa077d10e80d8f0778f6d727a4

      SHA1

      79b13e9bcbe12eb950cfbac6f4c1dd12287d613c

      SHA256

      fae216618b89fd42fade08554294d593f2fe3864ad5751129e9d412855e73bb2

      SHA512

      eebe70f0949daa9d0f2fd36b44a2455cfc30f4d7298075824b44b4f14419e76396737e44941067600211d210ffb2c2972799059d5830bb2f82eb5c95492be51a

    • C:\Users\Admin\zbduuc.exe

      Filesize

      224KB

      MD5

      390882aa077d10e80d8f0778f6d727a4

      SHA1

      79b13e9bcbe12eb950cfbac6f4c1dd12287d613c

      SHA256

      fae216618b89fd42fade08554294d593f2fe3864ad5751129e9d412855e73bb2

      SHA512

      eebe70f0949daa9d0f2fd36b44a2455cfc30f4d7298075824b44b4f14419e76396737e44941067600211d210ffb2c2972799059d5830bb2f82eb5c95492be51a