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08/02/2025, 05:20

250208-f1rj5sypcl 10

Analysis

  • max time kernel
    170s
  • max time network
    171s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250207-en
  • resource tags

    arch:x64arch:x86image:win11-20250207-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08/02/2025, 05:20

General

  • Target

  • Size

    313KB

  • MD5

    fe1bc60a95b2c2d77cd5d232296a7fa4

  • SHA1

    c07dfdea8da2da5bad036e7c2f5d37582e1cf684

  • SHA256

    b3e1e9d97d74c416c2a30dd11858789af5554cf2de62f577c13944a19623777d

  • SHA512

    266c541a421878e1e175db5d94185c991cec5825a4bc50178f57264f3556080e6fe984ed0380acf022ce659aa1ca46c9a5e97efc25ff46cbfd67b9385fd75f89

  • SSDEEP

    6144:nl578cxdGY87FohbnmM2i8ito7wTmCbL94KCT3OAmK:nl59zH8MiM2z+NLQBN

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\Microsoft\OneNote\16.0\_R_E_A_D___T_H_I_S___7AJ0FIA_.txt

Family

cerber

Ransom Note
Hi, I'am CRBR ENCRYPTOR ;) ----- ALL YOUR DOCUMENTS, PH0T0S, DATABASES AND OTHER IMPORTANT FILES HAVE BEEN ENCRYPTED! ----- The only one way to decrypt your files is to receive the private key and decryption program. To receive the private key and decryption program go to any decrypted folder, inside there is the special file (*_R_E_A_D___T_H_I_S_*) with complete instructions how to decrypt your files. If you cannot find any (*_R_E_A_D___T_H_I_S_*) file at your PC, follow the instructions below: ----- 1. Download "Tor Browser" from https://www.torproject.org/ and install it. 2. In the "Tor Browser" open your personal page here: http://xpcx6erilkjced3j.onion/2D37-0DD0-A9EC-0098-B912 Note! This page is available via "Tor Browser" only. ----- Also you can use temporary addresses on your personal page without using "Tor Browser". ----- 1. http://xpcx6erilkjced3j.1n5mod.top/2D37-0DD0-A9EC-0098-B912 2. http://xpcx6erilkjced3j.19kdeh.top/2D37-0DD0-A9EC-0098-B912 3. http://xpcx6erilkjced3j.1mpsnr.top/2D37-0DD0-A9EC-0098-B912 4. http://xpcx6erilkjced3j.18ey8e.top/2D37-0DD0-A9EC-0098-B912 5. http://xpcx6erilkjced3j.17gcun.top/2D37-0DD0-A9EC-0098-B912 ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://xpcx6erilkjced3j.onion/2D37-0DD0-A9EC-0098-B912

http://xpcx6erilkjced3j.1n5mod.top/2D37-0DD0-A9EC-0098-B912

http://xpcx6erilkjced3j.19kdeh.top/2D37-0DD0-A9EC-0098-B912

http://xpcx6erilkjced3j.1mpsnr.top/2D37-0DD0-A9EC-0098-B912

http://xpcx6erilkjced3j.18ey8e.top/2D37-0DD0-A9EC-0098-B912

http://xpcx6erilkjced3j.17gcun.top/2D37-0DD0-A9EC-0098-B912

Signatures

  • Cerber

    Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.

  • Cerber family
  • Contacts a large (1094) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Downloads MZ/PE file 1 IoCs
  • Modifies Windows Firewall 2 TTPs 2 IoCs
  • Drops startup file 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 38 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 20 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 3 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Kills process with taskkill 1 IoCs
  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 9 IoCs
  • Suspicious use of SendNotifyMessage 8 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\[email protected]
    "C:\Users\Admin\AppData\Local\Temp\[email protected]"
    1⤵
    • Drops startup file
    • Enumerates connected drives
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3584
    • C:\Windows\SysWOW64\netsh.exe
      C:\Windows\system32\netsh.exe advfirewall set allprofiles state on
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:3492
    • C:\Windows\SysWOW64\netsh.exe
      C:\Windows\system32\netsh.exe advfirewall reset
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:2556
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___L6GG40ZA_.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3028
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___6B8Z_.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:712
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /d /c taskkill /f /im "E" > NUL & ping -n 1 127.0.0.1 > NUL & del "C" > NUL && exit
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:1668
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im "E"
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3700
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 1 127.0.0.1
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:660
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PG9lbSBwcm9kdWN0X21hbnVmYWN0dXJlcj0iIiBwcm9kdWN0X25hbWU9IiIvPjxleHAgZXRhZz0iJnF1b3Q7RSt4YkF6Nlk2c1UxMjg5YlM2cWw0VlJMYmtqZkJVR1RNSnNqckhyNDRpST0mcXVvdDsiLz48YXBwIGFwcGlkPSJ7OEE2OUQzNDUtRDU2NC00NjNjLUFGRjEtQTY5RDlFNTMwRjk2fSIgdmVyc2lvbj0iMTIzLjAuNjMxMi4xMjMiIG5leHR2ZXJzaW9uPSIiIGxhbmc9ImVuIiBicmFuZD0iR0dMUyIgY2xpZW50PSIiIGluc3RhbGxhZ2U9IjAiIGluc3RhbGxkYXRldGltZT0iMTczODk1NTk3NyIgb29iZV9pbnN0YWxsX3RpbWU9IjEzMzgzNDI4NTM1NTkwMDAwMCI-PGV2ZW50IGV2ZW50dHlwZT0iMzEiIGV2ZW50cmVzdWx0PSIxIiBlcnJvcmNvZGU9IjAiIGV4dHJhY29kZTE9IjIxNzk4NjIiIHN5c3RlbV91cHRpbWVfdGlja3M9IjUxNjMwMzkyMDMiLz48L2FwcD48L3JlcXVlc3Q-
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:4100
  • C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___L6GG40ZA_.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
    1⤵
    • System Location Discovery: System Language Discovery
    PID:804
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:336
    • C:\Program Files\VideoLAN\VLC\vlc.exe
      "C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\Downloads\SetTest.mp4"
      1⤵
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:3328
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___L6GG40ZA_.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
      1⤵
      • System Location Discovery: System Language Discovery
      PID:4960

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\OneNote\16.0\cache\_R_E_A_D___T_H_I_S___80T0JL4_.hta

      Filesize

      75KB

      MD5

      68cd111a4bb7b4f7d90e85c7631a109f

      SHA1

      d98de6c380e6cb706bdeb995e109c11d3a1af173

      SHA256

      4d46842ea96a8a05645e0f1a7c3dd2d3939d60b57da643301d571b7fb3f7f762

      SHA512

      3092ff9fc73fdee323f30b69569854492cb8798d288f29a3b05224f547f56bf5d113a4053339b08a59ebd137488bea0be6b2afb72d7f99e178c51a4d82cf3d56

    • C:\Users\Admin\AppData\Roaming\Microsoft\OneNote\16.0\_R_E_A_D___T_H_I_S___7AJ0FIA_.txt

      Filesize

      1KB

      MD5

      d3fc8ddaab42d2d3014d5afa576f8159

      SHA1

      ce08a037af670e5d2331730b80bd4bbe123fd96d

      SHA256

      ad0f08b7570edbbf0948e48a360d8bdc27462ae3575d5f98cbec8c7c8d39f25c

      SHA512

      062aff2f6c0581360dbd31be49bde0811baf9bb748db2026b8d55fe19e667ef8f40e5e3dd06e4c742abc68932c3a5cd4eaedad8895ac3cedcff0be4cab107edd

    • memory/3328-446-0x00007FFF7BF20000-0x00007FFF7CFD0000-memory.dmp

      Filesize

      16.7MB

    • memory/3328-445-0x00007FFF7D410000-0x00007FFF7D6C6000-memory.dmp

      Filesize

      2.7MB

    • memory/3328-443-0x00007FF7E9580000-0x00007FF7E9678000-memory.dmp

      Filesize

      992KB

    • memory/3328-444-0x00007FFF8FEB0000-0x00007FFF8FEE4000-memory.dmp

      Filesize

      208KB

    • memory/3584-4-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/3584-398-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/3584-406-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/3584-427-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/3584-428-0x0000000000440000-0x000000000044E000-memory.dmp

      Filesize

      56KB

    • memory/3584-7-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/3584-0-0x0000000004E90000-0x0000000004EC1000-memory.dmp

      Filesize

      196KB

    • memory/3584-2-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB

    • memory/3584-1-0x0000000000400000-0x0000000000433000-memory.dmp

      Filesize

      204KB