Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/11/2024, 03:05

General

  • Target
    88169b1d4778ed6c5fda97375efb5b9171ea52649c8715bb449801c39bce4ad4.exe
  • Size 147KB
  • Sample241120-dk6b9aygph
  • SHA256 88169b1d4778ed6c5fda97375efb5b9171ea52649c8715bb449801c39bce4ad4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • C:\EUPTJQjet.README.txt

  • dragonforce

Ransom Note
  • Hello! Your files have been stolen from your network and encrypted with a strong algorithm. We work for money and are not associated with politics. All you need to do is contact us and pay. --- Our communication process: 1. You contact us. 2. We send you a list of files that were stolen. 3. We decrypt 1 file to confirm that our decryptor works. 4. We agree on the amount, which must be paid using BTC. 5. We delete your files, we give you a decryptor. 6. We give you a detailed report on how we compromised your company, and recommendations on how to avoid such situations in the future. --- Client area (use this site to contact us): Link for Tor Browser: http://3pktcrcbmssvrnwe5skburdwe2h3v6ibdnn5kbjqihsg6eu6s6b7ryqd.onion >>> Use this ID: 39C1BACACEDFEC0FCA9A08D69D775556 to begin the recovery process. * In order to access the site, you will need Tor Browser, you can download it from this link: https://www.torproject.org/ --- Additional contacts: Support Tox: 1C054B722BCBF41A918EF3C485712742088F5C3E81B2FDD91ADEA6BA55F4A856D90A65E99D20 --- Recommendations: DO NOT RESET OR SHUTDOWN - files may be damaged. DO NOT RENAME OR MOVE the encrypted and readme files. DO NOT DELETE readme files. --- Important: If you refuse to pay or do not get in touch with us, we start publishing your files. 26/04/2024 00:00 UTC the decryptor will be destroyed and the files will be published on our blog. Blog: http://z3wqggtxft7id3ibr7srivv5gjof5fwg76slewnzwwakjuf3nlhukdid.onion Sincerely, 01000100 01110010 01100001 01100111 01101111 01101110 01000110 01101111 01110010 01100011 01100101
URLs
  • http://3pktcrcbmssvrnwe5skburdwe2h3v6ibdnn5kbjqihsg6eu6s6b7ryqd.onion

  • http://z3wqggtxft7id3ibr7srivv5gjof5fwg76slewnzwwakjuf3nlhukdid.onion

Signatures

  • DragonForce

    Ransomware family based on Lockbit that was first observed in November 2023.

  • Dragonforce family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\88169b1d4778ed6c5fda97375efb5b9171ea52649c8715bb449801c39bce4ad4.exe
    "C:\Users\Admin\AppData\Local\Temp\88169b1d4778ed6c5fda97375efb5b9171ea52649c8715bb449801c39bce4ad4.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1416
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:3656
    • C:\ProgramData\EFFE.tmp
      "C:\ProgramData\EFFE.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4860
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\EFFE.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4372
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:1408
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:5052
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{92676B96-F9D2-457C-875F-3AB7511BD19A}.xps" 133765456349200000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:3508

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          VVVVVVVVVVV

          • Path C:\$Recycle.Bin\S-1-5-21-3350944739-639801879-157714471-1000\VVVVVVVVVVV
          • Size 129B
          • SHA256 10926126950871459b2573cf7d0b4e3c8bc38746a297c296d7aba314c8783f5b
          • MD5 SHA1 SHA512

          EUPTJQjet.README.txt

          • Path C:\EUPTJQjet.README.txt
          • Size 1KB
          • SHA256 33ac7af74efacf750458988118a80a6809728e2578d3ba4dab7e7b70bc15f154
          • MD5 SHA1 SHA512

          EFFE.tmp

          • Path C:\ProgramData\EFFE.tmp
          • Size 14KB
          • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
          • MD5 SHA1 SHA512 SSDEEP

          DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

          • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
          • Size 147KB
          • SHA256 6788bfd02ea8666fb61efb093d5546fb915df4d5113918201ae08b4adb990e3d
          • MD5 SHA1 SHA512 SSDEEP

          {C1F9D5BD-A5A2-4703-8ED4-694A19CF5C47}

          • Path C:\Users\Admin\AppData\Local\Temp\{C1F9D5BD-A5A2-4703-8ED4-694A19CF5C47}
          • Size 4KB
          • SHA256 457661644dde9d3ae7a5be0fbde691ef2789034f94dc22ec1de8869162c1b9ae
          • MD5 SHA1 SHA512 SSDEEP

          Open Notebook.onetoc2

          • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
          • Size 4KB
          • SHA256 c9f32056ca63771d7f5bda16781e36401c0f3d8459e36839b97e0d74d95418ac
          • MD5 SHA1 SHA512 SSDEEP

          DDDDDDDDDDD

          • Path F:\$RECYCLE.BIN\S-1-5-21-3350944739-639801879-157714471-1000\DDDDDDDDDDD
          • Size 129B
          • SHA256 7642e2c889ac9b58f8a4af5bddc849e86bf8234fd1187c7b89c0ed19dd046927
          • MD5 SHA1 SHA512

          memory/1416-2922-0x0000000000E00000-0x0000000000E10000-memory.dmp

          memory/1416-2921-0x0000000000E00000-0x0000000000E10000-memory.dmp

          memory/1416-2923-0x0000000000E00000-0x0000000000E10000-memory.dmp

          memory/1416-2-0x0000000000E00000-0x0000000000E10000-memory.dmp

          memory/1416-0-0x0000000000E00000-0x0000000000E10000-memory.dmp

          memory/1416-1-0x0000000000E00000-0x0000000000E10000-memory.dmp

          memory/3508-2939-0x00007FFFBF090000-0x00007FFFBF0A0000-memory.dmp

          memory/3508-2938-0x00007FFFBF090000-0x00007FFFBF0A0000-memory.dmp

          memory/3508-2940-0x00007FFFBF090000-0x00007FFFBF0A0000-memory.dmp

          memory/3508-2971-0x00007FFFBC9D0000-0x00007FFFBC9E0000-memory.dmp

          memory/3508-2972-0x00007FFFBC9D0000-0x00007FFFBC9E0000-memory.dmp

          memory/3508-2941-0x00007FFFBF090000-0x00007FFFBF0A0000-memory.dmp

          memory/3508-2942-0x00007FFFBF090000-0x00007FFFBF0A0000-memory.dmp