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Analysis

  • max time kernel
    179s
  • max time network
    208s
  • 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, 12:35

General

  • Target

    bd45304812dc02ed53a382f13d90bb0d0f1ca43d08944a64c2279ed9e1c67244.exe

  • Size

    512KB

  • MD5

    e3abd1e6a7087cfc900d1f2dd9d8b509

  • SHA1

    7af7537c62643b89212ac3911c32f70b76518e18

  • SHA256

    bd45304812dc02ed53a382f13d90bb0d0f1ca43d08944a64c2279ed9e1c67244

  • SHA512

    3eae8c279ba51000b0eb7bdf9b242f8b37a97df426067a5489a43f9917c0b119aaba937666ef0bee9915dd872d3824a173c409d9a59ec78072909f1547ae0e17

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4n:0+h9OY70z+warul3E4n

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\bd45304812dc02ed53a382f13d90bb0d0f1ca43d08944a64c2279ed9e1c67244.exe
    "C:\Users\Admin\AppData\Local\Temp\bd45304812dc02ed53a382f13d90bb0d0f1ca43d08944a64c2279ed9e1c67244.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:1236
    • C:\Users\Admin\AppData\Local\Temp\n6571\s6571.exe
      "C:\Users\Admin\AppData\Local\Temp\n6571\s6571.exe" 69a316c07c2da20c949215a3jEDolC/K0bFO8Dj+vt7Y0njLgJefo4b/CWfSpjvRmtKx9DYd8c8A4qe3oMXtOaBBsanERffr4EC7EtdobHoWYSGc49Fv3eGIRVoxpwq2fRIX/wP2OJyzYiCCYKQXN/FFeQmraN3uADZ7GONaYqdwGZH1 /v "C:\Users\Admin\AppData\Local\Temp\bd45304812dc02ed53a382f13d90bb0d0f1ca43d08944a64c2279ed9e1c67244.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:4252

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n6571\s6571.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n6571\s6571.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/4252-135-0x00007FFB7E290000-0x00007FFB7ECC6000-memory.dmp

    Filesize

    10.2MB

  • memory/4252-136-0x0000000000BDA000-0x0000000000BDF000-memory.dmp

    Filesize

    20KB

  • memory/4252-137-0x0000000000BDA000-0x0000000000BDF000-memory.dmp

    Filesize

    20KB

  • memory/4252-138-0x0000000000BDA000-0x0000000000BDF000-memory.dmp

    Filesize

    20KB