Overview

overview

10

Static

static

3

cerber.exe

windows7-x64

10

cerber.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    61s
  • max time network
    57s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    29-06-2024 20:09

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General

  • Target

    cerber.exe

  • Size

    604KB

  • MD5

    8b6bc16fd137c09a08b02bbe1bb7d670

  • SHA1

    c69a0f6c6f809c01db92ca658fcf1b643391a2b7

  • SHA256

    e67834d1e8b38ec5864cfa101b140aeaba8f1900a6e269e6a94c90fcbfe56678

  • SHA512

    b53d2cc0fe5fa52262ace9f6e6ea3f5ce84935009822a3394bfe49c4d15dfeaa96bfe10ce77ffa93dbf81e5428122aa739a94bc709f203bc346597004fd75a24

  • SSDEEP

    6144:yYghlI5/u8f1mr+4RJ99MpDa52RX5wRDhOOU0qsR:yYKlYmDXEpDHRXP01

Score
10/10
cerberdiscoveryevasionpersistenceprivilege_escalationransomware

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___4XIF_.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/46A5-5AEC-3DF2-0446-90C8 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/46A5-5AEC-3DF2-0446-90C8 2. http://p27dokhpz2n7nvgr.14ewqv.top/46A5-5AEC-3DF2-0446-90C8 3. http://p27dokhpz2n7nvgr.14vvrc.top/46A5-5AEC-3DF2-0446-90C8 4. http://p27dokhpz2n7nvgr.129p1t.top/46A5-5AEC-3DF2-0446-90C8 5. http://p27dokhpz2n7nvgr.1apgrn.top/46A5-5AEC-3DF2-0446-90C8 ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://p27dokhpz2n7nvgr.onion/46A5-5AEC-3DF2-0446-90C8

http://p27dokhpz2n7nvgr.12hygy.top/46A5-5AEC-3DF2-0446-90C8

http://p27dokhpz2n7nvgr.14ewqv.top/46A5-5AEC-3DF2-0446-90C8

http://p27dokhpz2n7nvgr.14vvrc.top/46A5-5AEC-3DF2-0446-90C8

http://p27dokhpz2n7nvgr.129p1t.top/46A5-5AEC-3DF2-0446-90C8

http://p27dokhpz2n7nvgr.1apgrn.top/46A5-5AEC-3DF2-0446-90C8

Signatures

  • Cerber

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

    ransomwarecerber
  • Blocklisted process makes network request 8 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 30 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 FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 32 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:2848
    • 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:2896
    • C:\Windows\SysWOW64\netsh.exe
      C:\Windows\system32\netsh.exe advfirewall reset
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      PID:2992
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___KZ1T7_.hta"
      2⤵
      • Blocklisted process makes network request
      • Modifies Internet Explorer settings
      PID:2016
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___4XIF_.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      • Suspicious use of FindShellTrayWindow
      PID:1820
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:2400
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im "cerber.exe"
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1676
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 1 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2096
  • C:\Windows\SysWOW64\mshta.exe
    "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___KZ1T7_.hta"
    1⤵
    • Blocklisted process makes network request
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    PID:2620
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:2696
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\Documents\DisableResolve.htm
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1280
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1280 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1560

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads

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

      342B

      MD5

      605226d40926bfbd7f8c578b9a462998

      SHA1

      e1a89d96121abdd450dae0fd82d922c1687e8609

      SHA256

      591e5e29fa6de0460851f0301da837bacf7ea666a2e42bbb2f2c6f3f7e09a66b

      SHA512

      1f7b90651118ebf03ea91ee2e9c4a3a66ef6c711fa9402a800d219e508c533122ee200ca7d8a0ffd38b6b920fd9d52e20e1b5ac06e7eb95bf246b8db381dc762

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\Cab454C.tmp
      Filesize

      70KB

      MD5

      49aebf8cbd62d92ac215b2923fb1b9f5

      SHA1

      1723be06719828dda65ad804298d0431f6aff976

      SHA256

      b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

      SHA512

      bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\Tar455F.tmp
      Filesize

      181KB

      MD5

      4ea6026cf93ec6338144661bf1202cd1

      SHA1

      a1dec9044f750ad887935a01430bf49322fbdcb7

      SHA256

      8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

      SHA512

      6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

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    • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___4XIF_.txt
      Filesize

      1KB

      MD5

      953f180032390a4d22ae2520a6d54ac1

      SHA1

      ffdf418dd2a22b356d25dbea12252c6793507406

      SHA256

      9d5950949571a05b7bf716486939bb24ab0fdbb50ddef1e0a9636f6e8157b543

      SHA512

      9262a8b34b2d6f7decfaab8983fc3946b79761a0b28b9bf6096a31a89599af2e9b388b8e2b19b640158795a404863bd4a41c855482cfee09727a383dd99106b5

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    • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___KZ1T7_.hta
      Filesize

      75KB

      MD5

      19e04864a0966940448650f43f81c326

      SHA1

      161ceb8ace4db33582b479e3f66f99f2306c3412

      SHA256

      7c6a673e8b9b4b53e3fa08136f71e7de59ca7d2fa1abd7ea21d5bdf2b071da59

      SHA512

      e4a07a8f8566968e0aa7c3d6656f53f02c54690a2231765ecfc8b66cc3952dfa503fc3b812fdcded1c0fa074ac1f513e5f351c10dddfdbe43c514c8301ef1984

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    • memory/2848-71-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

      Download

    • memory/2848-1-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

      Download

    • memory/2848-66-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

      Download

    • memory/2848-9-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

      Download

    • memory/2848-106-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

      Download

    • memory/2848-5-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

      Download

    • memory/2848-2-0x0000000000400000-0x0000000000435000-memory.dmp

      Filesize

      212KB

      Download

    • memory/2848-0-0x0000000000220000-0x0000000000251000-memory.dmp

      Filesize

      196KB

      Download