Analysis

  • max time kernel
    33s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20240903-de
  • resource tags

    arch:x64arch:x86image:win7-20240903-delocale:de-deos:windows7-x64systemwindows
  • submitted
    10-02-2025 20:19

General

  • Target

    cerber.exe

  • Size

    604KB

  • MD5

    8b6bc16fd137c09a08b02bbe1bb7d670

  • SHA1

    c69a0f6c6f809c01db92ca658fcf1b643391a2b7

  • SHA256

    e67834d1e8b38ec5864cfa101b140aeaba8f1900a6e269e6a94c90fcbfe56678

  • SHA512

    b53d2cc0fe5fa52262ace9f6e6ea3f5ce84935009822a3394bfe49c4d15dfeaa96bfe10ce77ffa93dbf81e5428122aa739a94bc709f203bc346597004fd75a24

  • SSDEEP

    6144:yYghlI5/u8f1mr+4RJ99MpDa52RX5wRDhOOU0qsR:yYKlYmDXEpDHRXP01

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___HU3QVYES_.txt

Family

cerber

Ransom Note
CERBER RANSOMWARE ----- YOUR DOCUMENTS, PH0TOS, DATABASES AND OTHER IMPORTANT FILES HAVE BEEN ENCRYPTED! ----- The only way to decrypt y0ur 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 (*_READ_THIS_FILE_*) with complete instructions how to decrypt your files. If you cannot find any (*_READ_THIS_FILE_*) 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://p27dokhpz2n7nvgr.onion/BFF2-0858-21B4-0446-9D00 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://p27dokhpz2n7nvgr.12hygy.top/BFF2-0858-21B4-0446-9D00 2. http://p27dokhpz2n7nvgr.14ewqv.top/BFF2-0858-21B4-0446-9D00 3. http://p27dokhpz2n7nvgr.14vvrc.top/BFF2-0858-21B4-0446-9D00 4. http://p27dokhpz2n7nvgr.129p1t.top/BFF2-0858-21B4-0446-9D00 5. http://p27dokhpz2n7nvgr.1apgrn.top/BFF2-0858-21B4-0446-9D00 ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://p27dokhpz2n7nvgr.onion/BFF2-0858-21B4-0446-9D00

http://p27dokhpz2n7nvgr.12hygy.top/BFF2-0858-21B4-0446-9D00

http://p27dokhpz2n7nvgr.14ewqv.top/BFF2-0858-21B4-0446-9D00

http://p27dokhpz2n7nvgr.14vvrc.top/BFF2-0858-21B4-0446-9D00

http://p27dokhpz2n7nvgr.129p1t.top/BFF2-0858-21B4-0446-9D00

http://p27dokhpz2n7nvgr.1apgrn.top/BFF2-0858-21B4-0446-9D00

Signatures

  • Cerber

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

  • Cerber family
  • Blocklisted process makes network request 5 IoCs
  • 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
  • Deletes itself 1 IoCs
  • Drops startup file 1 IoCs
  • 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 8 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 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Kills process with taskkill 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cerber.exe
    "C:\Users\Admin\AppData\Local\Temp\cerber.exe"
    1⤵
    • Drops startup file
    • 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 UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2152
    • 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:2112
    • 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:1672
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___9OK0_.hta"
      2⤵
      • Blocklisted process makes network request
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      PID:1856
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___HU3QVYES_.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:2596
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2980
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im "cerber.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1096
      • 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:528

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab14DA.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar150C.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___9OK0_.hta

    Filesize

    75KB

    MD5

    f9279e4451b9445d4a083ef9abeedf64

    SHA1

    538109497dd7cb852ade95b2440a2438c22757a1

    SHA256

    391a576b32d3c91cfa580211b2fecfc45f97cab2e5f15e4321fadf54296b85e7

    SHA512

    5e7b14d6ab7908ca68b154d36ff09bcc399d34b36e955fcdde971dbd657b5ad3d17b064915129768fb98ee883101b3259863f7e27bf3bd2b6c4e760caf097df3

  • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___HU3QVYES_.txt

    Filesize

    1KB

    MD5

    25afb447709b57d71bfa80543cf5225d

    SHA1

    31e3769b93f57033c80e7b220b5bbcd453d6ad62

    SHA256

    b7fb45494fedec7872e3abbeaac06bb87db3efdef16a807be2cb3361e4456292

    SHA512

    e1d91efeb713c14270df347c7a900fa75d826cf5960033dfa9b617e764443b4ffe8c799dbfc53af3442b2d79ab45e58ae3a7d9507337543c65d64f24698dd4e4

  • memory/2152-1-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2152-0-0x0000000000220000-0x0000000000251000-memory.dmp

    Filesize

    196KB

  • memory/2152-2-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2152-6-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2152-7-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2152-88-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2152-97-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2152-112-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB