Resubmissions

05-08-2024 22:23

240805-2ba2rathle 10

27-04-2024 00:38

240427-ay3xhafc53 10

20-04-2024 05:28

240420-f6ht7aad5w 10

Analysis

  • max time kernel
    197s
  • max time network
    198s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    05-08-2024 22:23

Errors

Reason
Machine shutdown

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___ZSG87OTT_.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/9F99-7CDB-3FA9-0446-917D 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/9F99-7CDB-3FA9-0446-917D 2. http://p27dokhpz2n7nvgr.14ewqv.top/9F99-7CDB-3FA9-0446-917D 3. http://p27dokhpz2n7nvgr.14vvrc.top/9F99-7CDB-3FA9-0446-917D 4. http://p27dokhpz2n7nvgr.129p1t.top/9F99-7CDB-3FA9-0446-917D 5. http://p27dokhpz2n7nvgr.1apgrn.top/9F99-7CDB-3FA9-0446-917D ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://p27dokhpz2n7nvgr.onion/9F99-7CDB-3FA9-0446-917D

http://p27dokhpz2n7nvgr.12hygy.top/9F99-7CDB-3FA9-0446-917D

http://p27dokhpz2n7nvgr.14ewqv.top/9F99-7CDB-3FA9-0446-917D

http://p27dokhpz2n7nvgr.14vvrc.top/9F99-7CDB-3FA9-0446-917D

http://p27dokhpz2n7nvgr.129p1t.top/9F99-7CDB-3FA9-0446-917D

http://p27dokhpz2n7nvgr.1apgrn.top/9F99-7CDB-3FA9-0446-917D

Signatures

  • Cerber

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

  • Blocklisted process makes network request 5 IoCs
  • Contacts a large (1096) 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 6 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:2552
    • 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:2520
    • 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:376
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___1PP0_.hta"
      2⤵
      • Blocklisted process makes network request
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      PID:1376
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___ZSG87OTT_.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:2160
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3048
      • 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:448
      • 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:1064
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x0
    1⤵
      PID:2624
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x200
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2884
    • C:\Windows\system32\LogonUI.exe
      "LogonUI.exe" /flags:0x1
      1⤵
        PID:3004

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\Cab8D9.tmp

        Filesize

        70KB

        MD5

        49aebf8cbd62d92ac215b2923fb1b9f5

        SHA1

        1723be06719828dda65ad804298d0431f6aff976

        SHA256

        b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

        SHA512

        bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

      • C:\Users\Admin\AppData\Local\Temp\Tar91A.tmp

        Filesize

        181KB

        MD5

        4ea6026cf93ec6338144661bf1202cd1

        SHA1

        a1dec9044f750ad887935a01430bf49322fbdcb7

        SHA256

        8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

        SHA512

        6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

      • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___1PP0_.hta

        Filesize

        75KB

        MD5

        7872733160d9e558184d84de182caa6e

        SHA1

        9224dbf85a20b420ecf2ab6a7b2562edd1311905

        SHA256

        151a46cd87886b6f99733448d19cc3d74932f948c6324e9c11c316879b63f99c

        SHA512

        1cdcae5c4dfa4e026969552005c2fec7e4380a72619563f0141ba3f0a69e9aacb85d388bd02bd32db1b4a8437cf7223ff9523a46209a1bb8e0eff2098c0abb2d

      • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___ZSG87OTT_.txt

        Filesize

        1KB

        MD5

        a584e116d03a963c18a1483d874391b8

        SHA1

        99c0660b6a1f66f28936b39beaf46dc14863c836

        SHA256

        9dc409eebc241c7015386041f4391f9c1b9981b6953b8d567bac8a343292ad51

        SHA512

        6ea5e293972890b53bfb86407861d7d7a01dd143625f7c8135cc2d857e83927dcc84264d6cdff731feca532a37f89400e3ab8c5e7d5b298eaf568f86cef884a5

      • memory/2552-1-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2552-0-0x00000000004A0000-0x00000000004D1000-memory.dmp

        Filesize

        196KB

      • memory/2552-2-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2552-6-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2552-91-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2552-130-0x0000000000400000-0x0000000000435000-memory.dmp

        Filesize

        212KB

      • memory/2552-131-0x0000000000440000-0x0000000000451000-memory.dmp

        Filesize

        68KB