Overview

overview

10

Static

static

10

exe/start.bat

windows7-x64

10

exe/start.bat

windows10-2004-x64

10

exe/unimed1.exe

windows7-x64

10

exe/unimed1.exe

windows10-2004-x64

10

exe/unimed2.exe

windows7-x64

10

exe/unimed2.exe

windows10-2004-x64

10

exe/unimed3.exe

windows7-x64

10

exe/unimed3.exe

windows10-2004-x64

10

exe/unimed4.exe

windows7-x64

10

exe/unimed4.exe

windows10-2004-x64

10

exe/unimed5.exe

windows7-x64

10

exe/unimed5.exe

windows10-2004-x64

10

exe/unimed6.exe

windows7-x64

10

exe/unimed6.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    120s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    08/04/2024, 18:06

Sharing

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General

  • Target
    exe/unimed4.exe
  • Size 157KB
  • Sample240408-wp9jksff47
  • SHA256 76e4b75279179170fd81e05b51fbaf33aa8becaabc9bc9565950b4363a4a6ed2
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
ransomware

Malware Config

Extracted

Path

  • C:\Users\8iysYFBai.README.txt

Ransom Note
  • ~~ LockBit 3.0 the world's fastest and most stable ransomware from 2019~~~ >>>>> Your data is stolen and encrypted. BLOG Tor Browser Links: http://lockbit3753ekiocyo5epmpy6klmejchjtzddoekjlnt6mu3qh4de2id.onion/ http://lockbit3g3ohd3katajf6zaehxz4h4cnhmz5t735zpltywhwpc6oy3id.onion/ http://lockbit3olp7oetlc4tl5zydnoluphh7fvdt5oa6arcp2757r7xkutid.onion/ http://lockbit435xk3ki62yun7z5nhwz6jyjdp2c64j5vge536if2eny3gtid.onion/ http://lockbit4lahhluquhoka3t4spqym2m3dhe66d6lr337glmnlgg2nndad.onion/ http://lockbit6knrauo3qafoksvl742vieqbujxw7rd6ofzdtapjb4rrawqad.onion/ http://lockbit7ouvrsdgtojeoj5hvu6bljqtghitekwpdy3b6y62ixtsu5jqd.onion/ >>>>> What guarantee is there that we won't cheat you? We are the oldest ransomware affiliate program on the planet, nothing is more important than our reputation. We are not a politically motivated group and we want nothing more than money. If you pay, we will fulfill all the terms we agree on during the negotiation process. Treat this situation simply as a paid training session for your system administrators, because it was the misconfiguration of your corporate network that allowed us to attack you. Our pentesting services should be paid for the same way you pay your system administrators salaries. You can get more information about us on Ilon Musk's Twitter https://twitter.com/hashtag/lockbit?f=live >>>>> You need to contact us on TOR darknet sites with your personal ID Download and install Tor Browser https://www.torproject.org/ Write to the chat room and wait for an answer, we'll guarantee a response from us. If you need a unique ID for correspondence with us that no one will know about, ask it in the chat, we will generate a secret chat for you and give you his ID via private one-time memos service, no one can find out this ID but you. Sometimes you will have to wait some time for our reply, this is because we have a lot of work and we attack hundreds of companies around the world. Tor Browser personal link for CHAT available only to you (available during a ddos attack): http://lockbitcuo23q7qrymbk6dsp2sadltspjvjxgcyp4elbnbr6tcnwq7qd.onion Tor Browser Links for CHAT (sometimes unavailable due to ddos attacks): http://lockbit5eevg7vec4vwwtzgkl4kulap6oxbic2ye4mnmlq6njnpc47qd.onion http://lockbit74beza5z3e3so7qmjnvlgoemscp7wtp33xo7xv7f7xtlqbkqd.onion http://lockbit75naln4yj44rg6ez6vjmdcrt7up4kxmmmuvilcg4ak3zihxid.onion http://lockbit7a2g6ve7etbcy6iyizjnuleffz4szgmxaawcbfauluavi5jqd.onion http://lockbitaa46gwjck2xzmi2xops6x4x3aqn6ez7yntitero2k7ae6yoyd.onion http://lockbitb42tkml3ipianjbs6e33vhcshb7oxm2stubfvdzn3y2yqgbad.onion http://lockbitcuo23q7qrymbk6dsp2sadltspjvjxgcyp4elbnbr6tcnwq7qd.onion >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >> Your personal Black ID: CBCA8AEF72D14369A6BD6EA47C3BA89E << >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>> Warning! Do not delete or modify encrypted files, it will lead to problems with decryption of files! >>>>> Don't go to the police or the FBI for help and don't tell anyone that we attacked you.
URLs

  • http://lockbit3753ekiocyo5epmpy6klmejchjtzddoekjlnt6mu3qh4de2id.onion/

  • http://lockbit3g3ohd3katajf6zaehxz4h4cnhmz5t735zpltywhwpc6oy3id.onion/

  • http://lockbit3olp7oetlc4tl5zydnoluphh7fvdt5oa6arcp2757r7xkutid.onion/

  • http://lockbit435xk3ki62yun7z5nhwz6jyjdp2c64j5vge536if2eny3gtid.onion/

  • http://lockbit4lahhluquhoka3t4spqym2m3dhe66d6lr337glmnlgg2nndad.onion/

  • http://lockbit6knrauo3qafoksvl742vieqbujxw7rd6ofzdtapjb4rrawqad.onion/

  • http://lockbit7ouvrsdgtojeoj5hvu6bljqtghitekwpdy3b6y62ixtsu5jqd.onion/

  • https://twitter.com/hashtag/lockbit?f=live

  • http://lockbitcuo23q7qrymbk6dsp2sadltspjvjxgcyp4elbnbr6tcnwq7qd.onion

  • http://lockbit5eevg7vec4vwwtzgkl4kulap6oxbic2ye4mnmlq6njnpc47qd.onion

  • http://lockbit74beza5z3e3so7qmjnvlgoemscp7wtp33xo7xv7f7xtlqbkqd.onion

  • http://lockbit75naln4yj44rg6ez6vjmdcrt7up4kxmmmuvilcg4ak3zihxid.onion

  • http://lockbit7a2g6ve7etbcy6iyizjnuleffz4szgmxaawcbfauluavi5jqd.onion

  • http://lockbitaa46gwjck2xzmi2xops6x4x3aqn6ez7yntitero2k7ae6yoyd.onion

  • http://lockbitb42tkml3ipianjbs6e33vhcshb7oxm2stubfvdzn3y2yqgbad.onion

Signatures

  • Renames multiple (161) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\exe\unimed4.exe
    "C:\Users\Admin\AppData\Local\Temp\exe\unimed4.exe"
    1⤵
    • Loads dropped DLL
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\ProgramData\2720.tmp
      "C:\ProgramData\2720.tmp"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:2372
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\2720.tmp >> NUL
        3⤵
          PID:3040
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2252
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x148
      1⤵
        PID:2356

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            desktop.ini
            • Path C:\$Recycle.Bin\S-1-5-21-2721934792-624042501-2768869379-1000\desktop.ini
            • Size 129B
            • SHA256 56d3090ead16a3602383c11d98fb7342a4c029dae807bd17d53c29c2f199664d
            • MD5 SHA1 SHA512
            Submit Download

            8iysYFBai.README.txt
            • Path C:\Users\8iysYFBai.README.txt
            • Size 3KB
            • SHA256 7ba55cc34b6222d3fcab04ffbf3a0c673391174389d11ccb29ef9ac03d6c77cc
            • MD5 SHA1 SHA512
            Submit Download

            DDDDDDDDDDD
            • Path C:\Users\Admin\AppData\Local\Temp\exe\DDDDDDDDDDD
            • Size 157KB
            • SHA256 81adc51f1a62badf53bf241e68c6e505059bec13c1f951d2c0832eddd97b7ed2
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            DDDDDDDDDDD
            • Path F:\$RECYCLE.BIN\S-1-5-21-2721934792-624042501-2768869379-1000\DDDDDDDDDDD
            • Size 129B
            • SHA256 250a18ae41d07a9b728ffa5c5c8e211d42fac2ef4aaa8dd3b09980319cce539d
            • MD5 SHA1 SHA512
            Submit Download

            2720.tmp
            • Path \ProgramData\2720.tmp
            • Size 14KB
            • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
            • MD5 SHA1 SHA512 SSDEEP
            Submit Download

            memory/2040-0-0x0000000000990000-0x00000000009D0000-memory.dmp
            Download

            memory/2372-292-0x000000007EFA0000-0x000000007EFA1000-memory.dmp
            Download

            memory/2372-294-0x00000000024B0000-0x00000000024F0000-memory.dmp
            Download

            memory/2372-301-0x000000007EF80000-0x000000007EF81000-memory.dmp
            Download

            memory/2372-303-0x000000007EF20000-0x000000007EF21000-memory.dmp
            Download