Overview

overview

10

Static

static

3

Cerber.exe

windows7-x64

10

Cerber.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    119s
  • max time network
    131s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    20-06-2024 03:00

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General

  • Target

    Cerber.exe

  • Size

    492KB

  • MD5

    8b3d0bc69064a0155a205a4202417330

  • SHA1

    0aa06a222900a2d3042e73fc21b52004d7856aeb

  • SHA256

    9ef7fe10bbbb58899859d82ba7a698cbfdd546c6e9e4d3b55193e4180682036c

  • SHA512

    e54140bdf79b5498cb7f4a519a4d9ed54e3a4845ae822a2f25c3f1d97b616b9f1374ece7ff788e0e667e5ac5824f81aa1a1861b8d212e832533590ac1f96633a

  • SSDEEP

    12288:ww+dKNr2YH7WQx3IjKoa+888888888888W888888888888:wVKMYbWzuBf

Score
10/10
cerberdiscoveryevasionpersistenceprivilege_escalationransomware

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___J9TCP_.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/C12D-61D7-14EA-0446-9135 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.14ewqv.top/C12D-61D7-14EA-0446-9135 2. http://p27dokhpz2n7nvgr.14vvrc.top/C12D-61D7-14EA-0446-9135 3. http://p27dokhpz2n7nvgr.129p1t.top/C12D-61D7-14EA-0446-9135 4. http://p27dokhpz2n7nvgr.1apgrn.top/C12D-61D7-14EA-0446-9135 5. http://p27dokhpz2n7nvgr.1p5fwl.top/C12D-61D7-14EA-0446-9135 ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://p27dokhpz2n7nvgr.onion/C12D-61D7-14EA-0446-9135

http://p27dokhpz2n7nvgr.14ewqv.top/C12D-61D7-14EA-0446-9135

http://p27dokhpz2n7nvgr.14vvrc.top/C12D-61D7-14EA-0446-9135

http://p27dokhpz2n7nvgr.129p1t.top/C12D-61D7-14EA-0446-9135

http://p27dokhpz2n7nvgr.1apgrn.top/C12D-61D7-14EA-0446-9135

http://p27dokhpz2n7nvgr.1p5fwl.top/C12D-61D7-14EA-0446-9135

Signatures

  • Cerber

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

    ransomwarecerber
  • Blocklisted process makes network request 5 IoCs
  • Contacts a large (1095) amount of remote hosts 1 TTPs

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

    discovery
  • Modifies Windows Firewall 2 TTPs 2 IoCs
    evasion
  • Deletes itself 1 IoCs
  • Drops file in System32 directory 38 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • 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.

    persistenceprivilege_escalation
  • Kills process with taskkill 1 IoCs
    evasion
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • 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 file in System32 directory
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1732
    • 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
      PID:2376
    • C:\Windows\SysWOW64\netsh.exe
      C:\Windows\system32\netsh.exe advfirewall reset
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      PID:2212
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___OZ9HCOLF_.hta"
      2⤵
      • Blocklisted process makes network request
      • Modifies Internet Explorer settings
      PID:2000
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___J9TCP_.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:2504
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1988
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im "Cerber.exe"
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1768
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 1 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2424

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\Tar48F9.tmp
    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

    Download Submit

  • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___J9TCP_.txt
    Filesize

    1KB

    MD5

    92269e3db644ef93595bd833e6d6b805

    SHA1

    72c5577a228985c170c52068c279ec3e7b5ae659

    SHA256

    9d02a5fcf9f5c2441b2a7336119dd0421eed542e6438be6b6d0d068ba790ee66

    SHA512

    a426bfd7d75a9f8aaa622566399c46da5ca52ab9b8cd05c520f15685cb829c880fe184d7ffba5bd0835ef8bb392a1cb736862ae18c46ba8b31fedf7b83209cb2

    Download Submit

  • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___OZ9HCOLF_.hta
    Filesize

    75KB

    MD5

    21cfebc87638a441a1de4829d01117ec

    SHA1

    a6b1243d0fdfaee92f071e5252c2759eb54bbe48

    SHA256

    d96517ad64c2eee9e28a721c8fa4d698f4ed1abdfd6615463fc8c32b21a0230f

    SHA512

    657c5956d32e247a1a0dd4c7ab4fd6aa3f97325ad6bcce0441d5d96b638f68e22b3aa06da097754d10c393d08a01f5cdce8a7d83e5b9688875d4f7b1729fc779

    Download Submit

  • memory/1732-1-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download

  • memory/1732-0-0x0000000000120000-0x0000000000151000-memory.dmp

    Filesize

    196KB

    Download

  • memory/1732-2-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download

  • memory/1732-5-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download

  • memory/1732-9-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download

  • memory/1732-69-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download

  • memory/1732-108-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download