Analysis

  • max time kernel
    154s
  • max time network
    161s
  • 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 14:16

General

  • Target

    83ba4a53e71011cbcd0812e78ca674d40c2236b0fb17e2c83939cf8bbfc5be89.exe

  • Size

    512KB

  • MD5

    e5cea48d5d1b570b4645cc3f8eb4a814

  • SHA1

    184c268478dd9524448e99cf875e47623aadd4c7

  • SHA256

    83ba4a53e71011cbcd0812e78ca674d40c2236b0fb17e2c83939cf8bbfc5be89

  • SHA512

    a8de8600d258243f941093fc91ab90e4269faad4f6853ec707ac5209aeb8fcf7d10234824bb94a64a626ce2dd54be2945576e3110b2227f62bc78babdf32fb63

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4t:0+h9OY70z+warul3E4t

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 4 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\83ba4a53e71011cbcd0812e78ca674d40c2236b0fb17e2c83939cf8bbfc5be89.exe
    "C:\Users\Admin\AppData\Local\Temp\83ba4a53e71011cbcd0812e78ca674d40c2236b0fb17e2c83939cf8bbfc5be89.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:2688
    • C:\Users\Admin\AppData\Local\Temp\n3113\s3113.exe
      "C:\Users\Admin\AppData\Local\Temp\n3113\s3113.exe" c9da5f92569f767939001fc8GQdU7mwETh5JAIs8qxq+8/naZ2N4/ROwQ97wEhNng7TXH3abC2PLtnhArgXjrta8BpXoQ0Wxd7klELcWn7TFAGYzZ5+bZ3i1kKFbybgBxJbfwULL+XJ5WiUKhGLDzRT//XYJsqHbFeNEnJdIjZ4NGRH4 /v "C:\Users\Admin\AppData\Local\Temp\83ba4a53e71011cbcd0812e78ca674d40c2236b0fb17e2c83939cf8bbfc5be89.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:3608

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n3113\s3113.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n3113\s3113.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/3608-135-0x00007FFBAB8B0000-0x00007FFBAC2E6000-memory.dmp

    Filesize

    10.2MB