Analysis

  • max time kernel
    18s
  • max time network
    20s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250128-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250128-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    05-02-2025 16:06

General

  • Target

    Cerber5.exe

  • 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___C1LG_.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/F0C1-AACA-45A0-0098-BB90 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/F0C1-AACA-45A0-0098-BB90 2. http://xpcx6erilkjced3j.19kdeh.top/F0C1-AACA-45A0-0098-BB90 3. http://xpcx6erilkjced3j.1mpsnr.top/F0C1-AACA-45A0-0098-BB90 4. http://xpcx6erilkjced3j.18ey8e.top/F0C1-AACA-45A0-0098-BB90 5. http://xpcx6erilkjced3j.17gcun.top/F0C1-AACA-45A0-0098-BB90 ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://xpcx6erilkjced3j.onion/F0C1-AACA-45A0-0098-BB90

http://xpcx6erilkjced3j.1n5mod.top/F0C1-AACA-45A0-0098-BB90

http://xpcx6erilkjced3j.19kdeh.top/F0C1-AACA-45A0-0098-BB90

http://xpcx6erilkjced3j.1mpsnr.top/F0C1-AACA-45A0-0098-BB90

http://xpcx6erilkjced3j.18ey8e.top/F0C1-AACA-45A0-0098-BB90

http://xpcx6erilkjced3j.17gcun.top/F0C1-AACA-45A0-0098-BB90

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.

  • Modifies Windows Firewall 2 TTPs 2 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 3 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Cerber5.exe
    "C:\Users\Admin\AppData\Local\Temp\Cerber5.exe"
    1⤵
    • 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
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4364
    • 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:2244
    • 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:3984

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___B3UR8_.hta

    Filesize

    75KB

    MD5

    6da63c85e17362c2a238ca9b478d6c5c

    SHA1

    46dd6770cf01fe00cdd184e7e229b3ca2a89e7ba

    SHA256

    0fa2837fe2e5a9ab8e5ef87f544cd59ea707ff30d790448f74349166f2398894

    SHA512

    5ad19c40121adfe158d2147477680597d2adebd509f37657944571b7649ae57154f66bbfa83c988a3f597ca12507ade15c302405379b06a0859d2c2577bffabe

  • C:\Users\Admin\AppData\Roaming\Microsoft\OneNote\16.0\_R_E_A_D___T_H_I_S___C1LG_.txt

    Filesize

    1KB

    MD5

    7cadac35f2cbdbe514d83e27b18cb495

    SHA1

    b2a95565b44bcb48ee36b5d13203eb4d2b10d568

    SHA256

    8b527f58cb1edc712f2c5caeb529ec4c1678538b6e48450b66d274b0ad67bf9a

    SHA512

    93bae7c33278b104fe57381fa4d0dfd7000f7791f14a0467a797cd8f405cd1abc4ef4e776999c25275349777fca777577712aa798d188e914c52a3522f8ce14f

  • memory/4364-0-0x00000000014A0000-0x00000000014D1000-memory.dmp

    Filesize

    196KB

  • memory/4364-1-0x0000000000400000-0x0000000000433000-memory.dmp

    Filesize

    204KB

  • memory/4364-2-0x0000000000400000-0x0000000000433000-memory.dmp

    Filesize

    204KB

  • memory/4364-4-0x0000000000400000-0x0000000000433000-memory.dmp

    Filesize

    204KB

  • memory/4364-7-0x0000000000400000-0x0000000000433000-memory.dmp

    Filesize

    204KB

  • memory/4364-393-0x0000000000400000-0x0000000000433000-memory.dmp

    Filesize

    204KB

  • memory/4364-385-0x0000000000400000-0x0000000000433000-memory.dmp

    Filesize

    204KB