Analysis

  • max time kernel
    208s
  • max time network
    238s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2022 06:50

General

  • Target

    e3455f6f4a75ddb9169ecf47d9e9b4fac803bd338a99b5b3f833d624adbd838e.exe

  • Size

    512KB

  • MD5

    494dc6acc525f13844bd5ad2f62e1e89

  • SHA1

    36f8c6133dddb8d077ab69a361643f9c0ec1f644

  • SHA256

    e3455f6f4a75ddb9169ecf47d9e9b4fac803bd338a99b5b3f833d624adbd838e

  • SHA512

    ac4428e1cca17162c8b9e974058f44f11b1905af1d08fb53a86fd579319ddfc7ae371908478d219e2fb1c6f5eab9a931fda8db5640062016af13f7942f7a481f

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4H:0+h9OY70z+warul3E4H

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 3 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\e3455f6f4a75ddb9169ecf47d9e9b4fac803bd338a99b5b3f833d624adbd838e.exe
    "C:\Users\Admin\AppData\Local\Temp\e3455f6f4a75ddb9169ecf47d9e9b4fac803bd338a99b5b3f833d624adbd838e.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:100
    • C:\Users\Admin\AppData\Local\Temp\n2723\s2723.exe
      "C:\Users\Admin\AppData\Local\Temp\n2723\s2723.exe" 04bd08fc295e7bad221ceb30WuH3cbHcKSj1YoYg0XnORQE/PCs2oPn865O/I7e7WVq4IxCAPbOgJVGSUCMeAjeuDY/kT8NWhtMGtTFG4Qc4xF1lbntc17DFIoYOR3TExMaaMBl54p0IOraWo8tMbw0O4r8pBdBRtNvKm9u+ROC0i/MJ /v "C:\Users\Admin\AppData\Local\Temp\e3455f6f4a75ddb9169ecf47d9e9b4fac803bd338a99b5b3f833d624adbd838e.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:4028

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n2723\s2723.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n2723\s2723.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/4028-133-0x0000000000000000-mapping.dmp

  • memory/4028-136-0x00007FFD74BD0000-0x00007FFD75606000-memory.dmp

    Filesize

    10.2MB

  • memory/4028-137-0x000000000082A000-0x000000000082F000-memory.dmp

    Filesize

    20KB