Analysis

  • max time kernel
    79s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 14:18

General

  • Target

    c1cf38bfad046c0fa80c2ee1cb24161e655d540f42b2b9d4e4602cef52481d5d.exe

  • Size

    512KB

  • MD5

    d986b9f9cfedb3ac5914f83975ff7b6a

  • SHA1

    ec71a5337ff00319df3281810c93f0d6331ad84a

  • SHA256

    c1cf38bfad046c0fa80c2ee1cb24161e655d540f42b2b9d4e4602cef52481d5d

  • SHA512

    58805b47f09c864c77cd0b531aaf08c93637ea22cba88d1ea30c920bfa155005da0c69547b2a48e9a65655680e3f3a397c49add13c76e60b02d6b9903ca82ee0

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4s:0+h9OY70z+warul3E4s

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\c1cf38bfad046c0fa80c2ee1cb24161e655d540f42b2b9d4e4602cef52481d5d.exe
    "C:\Users\Admin\AppData\Local\Temp\c1cf38bfad046c0fa80c2ee1cb24161e655d540f42b2b9d4e4602cef52481d5d.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:1316
    • C:\Users\Admin\AppData\Local\Temp\n786\s786.exe
      "C:\Users\Admin\AppData\Local\Temp\n786\s786.exe" 5580078e6218e4c4805d2b491B2SpVVXXUIcpkuddtsz/DmIBPGT3MOzRjivop4Fc5pQaa878RPGDD9qidCy5hS/pCzV5qFhk8FAE4rte8b8+Q7prp32q+JylrZ9zHCNyvtZLw/xtdG4auCftfX3aWcbYy5DX2A3iwIJNuRKyvKVX5+3 /v "C:\Users\Admin\AppData\Local\Temp\c1cf38bfad046c0fa80c2ee1cb24161e655d540f42b2b9d4e4602cef52481d5d.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:5072

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\n786\s786.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n786\s786.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/5072-136-0x0000000000CCA000-0x0000000000CCF000-memory.dmp

    Filesize

    20KB

  • memory/5072-137-0x0000000000CCA000-0x0000000000CCF000-memory.dmp

    Filesize

    20KB