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Analysis

  • max time kernel
    190s
  • max time network
    237s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 13:04

General

  • Target

    c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe

  • Size

    395KB

  • MD5

    64ae49b76e77e91648702ec307366574

  • SHA1

    c3caacaa85a4e1264055b7b58e51942035c1b63d

  • SHA256

    c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e

  • SHA512

    7d72c6ebe3899b25ab4da8b48799ff8fb6d9061b758064ea6179973153d9c759fc35808901a23c8d05e102ec0e903c34f5339737ee9e75587ee50694c019f39b

  • SSDEEP

    3072:uI3YNRJObPbVvz6LCntoiZQQFKAYiVWMHbzJLTpOegl9DywuINy6TKzm9E2Gktg1:5aRJObALCntHQQ0D2uFOfL36

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe
    "C:\Users\Admin\AppData\Local\Temp\c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2476
    • C:\Users\Admin\AppData\Local\Temp\fac.exe
      "C:\Users\Admin\AppData\Local\Temp\fac.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1556
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\fac.exe" "fac.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:664

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\fac.exe

    Filesize

    395KB

    MD5

    64ae49b76e77e91648702ec307366574

    SHA1

    c3caacaa85a4e1264055b7b58e51942035c1b63d

    SHA256

    c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e

    SHA512

    7d72c6ebe3899b25ab4da8b48799ff8fb6d9061b758064ea6179973153d9c759fc35808901a23c8d05e102ec0e903c34f5339737ee9e75587ee50694c019f39b

  • C:\Users\Admin\AppData\Local\Temp\fac.exe

    Filesize

    395KB

    MD5

    64ae49b76e77e91648702ec307366574

    SHA1

    c3caacaa85a4e1264055b7b58e51942035c1b63d

    SHA256

    c1c9cbfea0423118c876a59d4f6368449af98c520bbfa86c45b2d381db58542e

    SHA512

    7d72c6ebe3899b25ab4da8b48799ff8fb6d9061b758064ea6179973153d9c759fc35808901a23c8d05e102ec0e903c34f5339737ee9e75587ee50694c019f39b

  • memory/1556-137-0x0000000074710000-0x0000000074CC1000-memory.dmp

    Filesize

    5.7MB

  • memory/1556-140-0x0000000074710000-0x0000000074CC1000-memory.dmp

    Filesize

    5.7MB

  • memory/2476-132-0x0000000074710000-0x0000000074CC1000-memory.dmp

    Filesize

    5.7MB

  • memory/2476-133-0x0000000074710000-0x0000000074CC1000-memory.dmp

    Filesize

    5.7MB

  • memory/2476-138-0x0000000074710000-0x0000000074CC1000-memory.dmp

    Filesize

    5.7MB