Analysis

  • max time kernel
    188s
  • max time network
    212s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 21:42

General

  • Target

    54bb7a7538e2cca58c99a313399226b1cdafc4f2a2b5eda6da4fa4b9d519a6be.exe

  • Size

    512KB

  • MD5

    0f4940c213d2d6ba65880b97e9a4a09d

  • SHA1

    03af47b34090262abd6226b35a59fde53990cc86

  • SHA256

    54bb7a7538e2cca58c99a313399226b1cdafc4f2a2b5eda6da4fa4b9d519a6be

  • SHA512

    cd51f940e9103970433d1c114db11881efb64ebd9cf49b52cbf654911b32cfe2d777683fcae7617ccb9b19cfc8fd80a3b395bbd7b9f71b94e485ccd411833642

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4B:0+h9OY70z+warul3E4B

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\54bb7a7538e2cca58c99a313399226b1cdafc4f2a2b5eda6da4fa4b9d519a6be.exe
    "C:\Users\Admin\AppData\Local\Temp\54bb7a7538e2cca58c99a313399226b1cdafc4f2a2b5eda6da4fa4b9d519a6be.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4844
    • C:\Users\Admin\AppData\Local\Temp\n3372\s3372.exe
      "C:\Users\Admin\AppData\Local\Temp\n3372\s3372.exe" 4ae36171f3eb229c39dde34c1GZATrFBCmNqgI9tp5fLQlllLZn4bLC1jOtxX4NLtLr5JJBgSWLzZo3Q+Z96loF18zz7Y4YQm4ajJBGXf7HvlcbUwsXqho1KqB9oUv+pyPvGz8L7tzcm0Co60BG4Jkzn9hb6rbogck7NRG+MwPS7A7+r /v "C:\Users\Admin\AppData\Local\Temp\54bb7a7538e2cca58c99a313399226b1cdafc4f2a2b5eda6da4fa4b9d519a6be.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4712

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n3372\s3372.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n3372\s3372.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/4712-135-0x00007FF9043A0000-0x00007FF904DD6000-memory.dmp

    Filesize

    10.2MB

  • memory/4712-136-0x000000000169A000-0x000000000169F000-memory.dmp

    Filesize

    20KB

  • memory/4712-137-0x000000000169A000-0x000000000169F000-memory.dmp

    Filesize

    20KB