Analysis

  • max time kernel
    121s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    13/03/2024, 00:45

General

  • Target
    2024-03-13_f28a75de3d39b47c7529146ea4195e6b_darkside.exe
  • Size 149KB
  • Sample240313-a4fddshf83
  • SHA256 8732b3934981357a625f425af08731a6bb5fc00f3a957dd4518de98cf84d08d7
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • C:\Users\Admin\z9VLivqzH.README.txt

  • lockbit

Ransom Note
  • ~~~ LockBit 3.0 the world's fastest ransomware since 2019~~~ >>>> Your data are stolen and encrypted The data will be published on TOR website if you do not pay the ransom >>>> What guarantees that we will not deceive you? We are not a politically motivated group and we do not need anything other than your money. If you pay, we will provide you the programs for decryption and we will delete your data. Life is too short to be sad. Be not sad, money, it is only paper. If we do not give you decrypters, or we do not delete your data after payment, then nobody will pay us in the future. Therefore to us our reputation is very important. We attack the companies worldwide and there is no dissatisfied victim after payment. You can obtain information about us on twitter https://twitter.com/hashtag/lockbit?f=live >>>> You need contact us and decrypt one file for free on these TOR sites with your personal DECRYPTION ID Download and install TOR Browser https://www.torproject.org/ Write to a chat and wait for the answer, we will always answer you. Sometimes you will need to wait for our answer because we attack many companies. If you do not get an answer in the chat room for a long time, the site does not work and in any other emergency, you can contact us in jabber or tox. Tox ID LockBitSupp: BFDE7C305BA929B06C26CF6EDF44A054E8D35378E7C3A603A15313F285B99E5EED08EC4E3FC4 XMPP (Jabber) Support: [email protected] >>>> Your personal DECRYPTION ID: 99CFA9F060AB07458650C45F0BC2A726 >>>> Warning! Do not DELETE or MODIFY any files, it can lead to recovery problems! >>>> Warning! If you do not pay the ransom we will attack your company repeatedly again! >>>> Advertisement Would you like to earn millions of dollars $$$ ? Our company acquire access to networks of various companies, as well as insider information that can help you steal the most valuable data of any company. You can provide us accounting data for the access to any company, for example, login and password to RDP, VPN, corporate email, etc. Open our letter at your email. Launch the provided virus on any computer in your company. You can do it both using your work computer or the computer of any other employee in order to divert suspicion of being in collusion with us. Companies pay us the foreclosure for the decryption of files and prevention of data leak. You can contact us using Tox messenger without registration and SMS https://tox.chat/download.html. Using Tox messenger, we will never know your real name, it means your privacy is guaranteed. If you want to contact us, write in jabber or tox. Tox ID LockBitSupp: BFDE7C305BA929B06C26CF6EDF44A054E8D35378E7C3A603A15313F285B99E5EED08EC4E3FC4 XMPP (Jabber) Support: [email protected] If this contact is expired, and we do not respond you, look for the relevant contact data on our website via Tor or Brave browser
URLs
  • https://twitter.com/hashtag/lockbit?f=live

  • https://tox.chat/download.html

Signatures

  • Lockbit

    Ransomware family with multiple variants released since late 2019.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 2 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Control Panel 2 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-13_f28a75de3d39b47c7529146ea4195e6b_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-13_f28a75de3d39b47c7529146ea4195e6b_darkside.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:3012
    • C:\ProgramData\1796.tmp
      "C:\ProgramData\1796.tmp"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:2908
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\1796.tmp >> NUL
        3⤵
          PID:2860

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          desktop.ini

          • Path C:\$Recycle.Bin\S-1-5-21-1650401615-1019878084-3673944445-1000\desktop.ini
          • Size 129B
          • SHA256 10bf6920a4deefe4458cd6d7f7c73fa03c264f4b856088f792f8c29577898a88
          • MD5 SHA1 SHA512

          UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU

          • Path C:\Users\Admin\AppData\Local\Temp\UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
          • Size 149KB
          • SHA256 49ea955576b153152372582a0866498e50fbc894d48c658402933926ffd37c81
          • MD5 SHA1 SHA512 SSDEEP

          z9VLivqzH.README.txt

          • Path C:\Users\Admin\z9VLivqzH.README.txt
          • Size 2KB
          • SHA256 10fa497a565b006d336b1c02f9bc1fcb799559d2f2b699cc78dcf5cf3991e6f7
          • MD5 SHA1 SHA512

          DDDDDDDDDDD

          • Path F:\$RECYCLE.BIN\S-1-5-21-1650401615-1019878084-3673944445-1000\DDDDDDDDDDD
          • Size 129B
          • SHA256 3792718679a60e153fad3eeab98052760ecb17c2ac897758e7d1cb22f14d1944
          • MD5 SHA1 SHA512

          1796.tmp

          • Path \ProgramData\1796.tmp
          • Size 14KB
          • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
          • MD5 SHA1 SHA512 SSDEEP

          memory/2908-870-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

          memory/2908-892-0x00000000003B0000-0x00000000003F0000-memory.dmp

          memory/2908-895-0x00000000003B0000-0x00000000003F0000-memory.dmp

          memory/2908-896-0x000000007EF80000-0x000000007EF81000-memory.dmp

          memory/2908-897-0x000000007EF20000-0x000000007EF21000-memory.dmp

          memory/2908-903-0x000000007EF40000-0x000000007EF41000-memory.dmp

          memory/2908-904-0x000000007EF60000-0x000000007EF61000-memory.dmp

          memory/3012-0-0x0000000002150000-0x0000000002190000-memory.dmp