Analysis

  • max time kernel
    119s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2024 22:38

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___OV2T4ZEX_.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/7362-3891-6BE6-0446-99B3 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/7362-3891-6BE6-0446-99B3 2. http://p27dokhpz2n7nvgr.14ewqv.top/7362-3891-6BE6-0446-99B3 3. http://p27dokhpz2n7nvgr.14vvrc.top/7362-3891-6BE6-0446-99B3 4. http://p27dokhpz2n7nvgr.129p1t.top/7362-3891-6BE6-0446-99B3 5. http://p27dokhpz2n7nvgr.1apgrn.top/7362-3891-6BE6-0446-99B3 ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://p27dokhpz2n7nvgr.onion/7362-3891-6BE6-0446-99B3

http://p27dokhpz2n7nvgr.12hygy.top/7362-3891-6BE6-0446-99B3

http://p27dokhpz2n7nvgr.14ewqv.top/7362-3891-6BE6-0446-99B3

http://p27dokhpz2n7nvgr.14vvrc.top/7362-3891-6BE6-0446-99B3

http://p27dokhpz2n7nvgr.129p1t.top/7362-3891-6BE6-0446-99B3

http://p27dokhpz2n7nvgr.1apgrn.top/7362-3891-6BE6-0446-99B3

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 (1097) 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 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 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:2892
    • 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:2916
    • 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:2764
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___RZUPL6_.hta"
      2⤵
      • Blocklisted process makes network request
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      PID:1744
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___OV2T4ZEX_.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:1144
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:744
      • 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:980
      • 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:2936

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabE1AA.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarE1CC.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___OV2T4ZEX_.txt

    Filesize

    1KB

    MD5

    01f6497d9a022fe45a88a65f69fe172d

    SHA1

    72e3b9793ff33feba5090c2c6aef76bc8a2e6cfb

    SHA256

    ac5716b4814d3de1086f29119a6f78f0b63aace55680b91d6d6620ce95f1fc6b

    SHA512

    9dccf6d3a7b08c6120c68a844ec667eae365edb507bec6e8becb93530e1358d230b0c95c238474cdbd80e6b4cd2ccbdc6558774bf04600259466b46aaf45e66f

  • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___RZUPL6_.hta

    Filesize

    75KB

    MD5

    2f9f15e627a1b39a04879fbb59d1ee4c

    SHA1

    452b0f36fd42cd8394f507e0da7e7244c9cdfbe9

    SHA256

    c42f718d6828dfaf2f63c8102891c38eda032e8405164568ada5c489bd245a21

    SHA512

    46285b7742254f1fde78c6a03b738f183ea7a352869ad4cf2216037137aa40fb019bf250a2aa89103faf6b38fd06145e2118f10390764d321e282da57a72e54f

  • memory/2892-0-0x0000000000220000-0x0000000000251000-memory.dmp

    Filesize

    196KB

  • memory/2892-1-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2892-2-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2892-5-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2892-65-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2892-85-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB