Analysis

  • max time kernel
    148s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/03/2024, 01:43

General

  • Target
    2024-03-18_aaafdfae6df09d7330ff2c469be9b6f4_darkside.exe
  • Size 150KB
  • Sample240318-b5l31add67
  • SHA256 56c5581bf9c1afb57f7f4c2ca7b0491504a8d1b351c98e9aa2f5e5298a028da9
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • C:\df8WBoFqz.README.txt

Ransom Note
  • ~~~ AMAV1.0 Black World's Fastest Malware~~~ ██████╗ ██████╗ ███████╗ ██████╗ ██████╗ ██████╗ ███████╗ ██╔════╝██╔═══██╗██╔════╝ ██╔══██╗██╔═══██╗██╔════╝ ██╔════╝ ██║ ██║ ██║███████╗ ██████╔╝██║ ██║██║ ███╗█████╗ ██║ ██║ ██║╚════██║ ██╔══██╗██║ ██║██║ ██║██╔══╝ ╚██████╗╚██████╔╝███████║ ██████╔╝╚██████╔╝╚██████╔╝███████╗ ╚═════╝ ╚═════╝ ╚══════╝ ╚═════╝ ╚═════╝ ╚═════╝ >>>> Your data are stolen and encrypted The data will be published on TOR website if you do not pay the ransom Jabber:[email protected] Tox:BFDE7C305BA929B06C26CF6EDF44A054E8D35378E7C3A603A15313F285B99E5EED08EC4E3FC4 >>>> 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 need contact us and decrypt one file for free on these TOR sites with your personal DECRYPTION ID 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. >>Jabber:[email protected] >>Tox:BFDE7C305BA929B06C26CF6EDF44A054E8D35378E7C3A603A15313F285B99E5EED08EC4E3FC4 >>>> Your personal DECRYPTION ID: 956075897ED012B31CB82CEC34D51DFD >>>> 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. Jabber:[email protected] Tox:BFDE7C305BA929B06C26CF6EDF44A054E8D35378E7C3A603A15313F285B99E5EED08EC4E3FC4
Emails
URLs
  • https://tox.chat/download.html

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 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
  • Drops file in System32 directory 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-03-18_aaafdfae6df09d7330ff2c469be9b6f4_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-18_aaafdfae6df09d7330ff2c469be9b6f4_darkside.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4224
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:5016
    • C:\ProgramData\617.tmp
      "C:\ProgramData\617.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:4456
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\617.tmp >> NUL
        3⤵
          PID:4496
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
      1⤵
        PID:3244
      • C:\Windows\system32\printfilterpipelinesvc.exe
        C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
        1⤵
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:3944
        • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
          /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{D40235B7-1A64-4143-9F40-57731B89B23A}.xps" 133551998540640000
          2⤵
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of SetWindowsHookEx
          PID:3772

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            BBBBBBBBBBB

            • Path C:\$Recycle.Bin\S-1-5-21-2727153400-192325109-1870347593-1000\BBBBBBBBBBB
            • Size 129B
            • SHA256 ec414fc2e4db0711a036c1b4139c184246e891f7f135cc508684f5cf71f3e42b
            • MD5 SHA1 SHA512

            617.tmp

            • Path C:\ProgramData\617.tmp
            • Size 14KB
            • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
            • MD5 SHA1 SHA512 SSDEEP

            DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

            • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
            • Size 150KB
            • SHA256 2fccb281f4b326a5abd701f94819892ea29fb587151f8613759a8d0fdcdd22dc
            • MD5 SHA1 SHA512 SSDEEP

            df8WBoFqz.README.txt

            • Path C:\df8WBoFqz.README.txt
            • Size 3KB
            • SHA256 29c72890f02289f23fd31df32f9709a598eb36e23aa6a6f2b67d2647b21b8091
            • MD5 SHA1 SHA512

            DDDDDDDDDDD

            • Path F:\$RECYCLE.BIN\S-1-5-21-2727153400-192325109-1870347593-1000\DDDDDDDDDDD
            • Size 129B
            • SHA256 eb047d6afec61190adf65ee1c682ed007a2342192023f915d5a1f7382b126486
            • MD5 SHA1 SHA512

            memory/3772-2802-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2814-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2764-0x00007FFC9F4D0000-0x00007FFC9F4E0000-memory.dmp

            memory/3772-2765-0x00007FFC9F4D0000-0x00007FFC9F4E0000-memory.dmp

            memory/3772-2766-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2840-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2767-0x00007FFC9F4D0000-0x00007FFC9F4E0000-memory.dmp

            memory/3772-2796-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2797-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2798-0x00007FFC9F4D0000-0x00007FFC9F4E0000-memory.dmp

            memory/3772-2799-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2800-0x00007FFC9F4D0000-0x00007FFC9F4E0000-memory.dmp

            memory/3772-2801-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2839-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2818-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2817-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2816-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2812-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2808-0x00007FFC9D330000-0x00007FFC9D340000-memory.dmp

            memory/3772-2810-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2809-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2811-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/3772-2813-0x00007FFC9D330000-0x00007FFC9D340000-memory.dmp

            memory/3772-2815-0x00007FFCDF450000-0x00007FFCDF645000-memory.dmp

            memory/4224-2-0x0000000003100000-0x0000000003110000-memory.dmp

            memory/4224-0-0x0000000003100000-0x0000000003110000-memory.dmp

            memory/4224-1-0x0000000003100000-0x0000000003110000-memory.dmp

            memory/4456-2806-0x000000007FE20000-0x000000007FE21000-memory.dmp

            memory/4456-2805-0x00000000024F0000-0x0000000002500000-memory.dmp

            memory/4456-2804-0x00000000024F0000-0x0000000002500000-memory.dmp

            memory/4456-2803-0x000000007FE40000-0x000000007FE41000-memory.dmp

            memory/4456-2807-0x000000007FDC0000-0x000000007FDC1000-memory.dmp