Analysis

  • max time kernel
    253s
  • max time network
    333s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 02:10

General

  • Target

    ad754d6d382007f1d57142787b9fa309fb0a94b0e6c340d24327ae3e1c4d1cd9.exe

  • Size

    328KB

  • MD5

    65d63d237251c492c7c2a8617c40b53e

  • SHA1

    80d06e4ed07626bcf0312b4022014cdbda934c9a

  • SHA256

    ad754d6d382007f1d57142787b9fa309fb0a94b0e6c340d24327ae3e1c4d1cd9

  • SHA512

    f9263beb29fcaa3db667866892783fd57b7ad51e8ea48703fc1b610416aa282c1e55e254cd10b510e6d327ed70a1004ef708048ece60032bd399b756973c2e40

  • SSDEEP

    6144:qLAJ3I3pnzOwewUqjxGTw8NMM8iH+C+MJKzb3n3jMR/mriB9ph:qLg3I3pnzORwRjxG3i8H+C+2oLnLe

Score
10/10

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-1214520366-621468234-4062160515-1000\Recovery+kumde.txt

Ransom Note
----- NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files were protected by a strong encryption with RSA-4096. More information about the encryption keys using RSA-4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA-4096 KEY, both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. !!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://ytrest84y5i456hghadefdsd.pontogrot.com/831A6C6B4A1A39A2 2. http://prest54538hnksjn4kjfwdbhwere.hotchunman.com/831A6C6B4A1A39A2 3. http://5rport45vcdef345adfkksawe.bematvocal.at/831A6C6B4A1A39A2 If for some reasons the addresses are not available, follow these steps: 1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2. After a successful installation, run the browser 3. Type in the address bar: xlowfznrg4wf7dli.onion/831A6C6B4A1A39A2 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://ytrest84y5i456hghadefdsd.pontogrot.com/831A6C6B4A1A39A2 http://prest54538hnksjn4kjfwdbhwere.hotchunman.com/831A6C6B4A1A39A2 http://5rport45vcdef345adfkksawe.bematvocal.at/831A6C6B4A1A39A2 *-*-* Your personal page Tor-Browser: xlowfznrg4wf7dli.ONION/831A6C6B4A1A39A2
URLs

http://ytrest84y5i456hghadefdsd.pontogrot.com/831A6C6B4A1A39A2

http://prest54538hnksjn4kjfwdbhwere.hotchunman.com/831A6C6B4A1A39A2

http://5rport45vcdef345adfkksawe.bematvocal.at/831A6C6B4A1A39A2

http://xlowfznrg4wf7dli.onion/831A6C6B4A1A39A2

http://xlowfznrg4wf7dli.ONION/831A6C6B4A1A39A2

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 22 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ad754d6d382007f1d57142787b9fa309fb0a94b0e6c340d24327ae3e1c4d1cd9.exe
    "C:\Users\Admin\AppData\Local\Temp\ad754d6d382007f1d57142787b9fa309fb0a94b0e6c340d24327ae3e1c4d1cd9.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:472
    • C:\Windows\ityvbhksrfnb.exe
      C:\Windows\ityvbhksrfnb.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:1908
      • C:\Windows\System32\wbem\WMIC.exe
        "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /noin teractive
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:436
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\AD754D~1.EXE
      2⤵
      • Deletes itself
      PID:924

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Deletion

1
T1107

Modify Registry

2
T1112

Discovery

System Information Discovery

1
T1082

Impact

Inhibit System Recovery

1
T1490

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\ityvbhksrfnb.exe
    Filesize

    328KB

    MD5

    65d63d237251c492c7c2a8617c40b53e

    SHA1

    80d06e4ed07626bcf0312b4022014cdbda934c9a

    SHA256

    ad754d6d382007f1d57142787b9fa309fb0a94b0e6c340d24327ae3e1c4d1cd9

    SHA512

    f9263beb29fcaa3db667866892783fd57b7ad51e8ea48703fc1b610416aa282c1e55e254cd10b510e6d327ed70a1004ef708048ece60032bd399b756973c2e40

  • C:\Windows\ityvbhksrfnb.exe
    Filesize

    328KB

    MD5

    65d63d237251c492c7c2a8617c40b53e

    SHA1

    80d06e4ed07626bcf0312b4022014cdbda934c9a

    SHA256

    ad754d6d382007f1d57142787b9fa309fb0a94b0e6c340d24327ae3e1c4d1cd9

    SHA512

    f9263beb29fcaa3db667866892783fd57b7ad51e8ea48703fc1b610416aa282c1e55e254cd10b510e6d327ed70a1004ef708048ece60032bd399b756973c2e40

  • memory/436-71-0x0000000000000000-mapping.dmp
  • memory/472-54-0x0000000000280000-0x0000000000305000-memory.dmp
    Filesize

    532KB

  • memory/472-55-0x0000000075FF1000-0x0000000075FF3000-memory.dmp
    Filesize

    8KB

  • memory/472-56-0x0000000000400000-0x0000000000494000-memory.dmp
    Filesize

    592KB

  • memory/472-60-0x0000000000280000-0x0000000000305000-memory.dmp
    Filesize

    532KB

  • memory/924-70-0x0000000000000000-mapping.dmp
  • memory/1908-61-0x0000000000000000-mapping.dmp
  • memory/1908-68-0x0000000001CD0000-0x0000000001D55000-memory.dmp
    Filesize

    532KB