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Analysis

  • max time kernel
    120s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/08/2024, 09:17

General

  • Target

    ctrsys.exe

  • Size

    183KB

  • MD5

    3870e4591ce517d956771e23c361582d

  • SHA1

    28d09d35d3e5a8490ef4a4ebaa36262fa411afba

  • SHA256

    2c85d7c4dd069fff494edd19387d56e54a52f6ef1b557f3d775f999410eb5a4d

  • SHA512

    61dc0f9ca1a81170ef6aa4e514432079ebf12509eb615a191dae9f0e801d95748adf1cfd7d03dc5035dddd809458b0d42453b3fd51ca29cca3b8776a430de2d1

  • SSDEEP

    3072:8FuxfutjURbpYkH+wWtaiEGlIQZboLRG9ua/aHyvXgQd2md:8FEgjUXr7NGlVbAh

Malware Config

Extracted

Path

C:\MNYHU2Jh1.README.txt

Ransom Note
~~~ LockBit 5.02 the world's fastest ransomware since 2024~~~ >>>> Your data are stolen and encrypted The data will be published on TOR website if you do not pay the ransom BTC amount 0.02 BTC amount 0 , deleted all files from you PC, and post all infirmation to public. where send BTC: bc1qm7sg7p2jkgthv7pkjy856sh9lr5x3yrpzv099d Time just 12 hr, after everythink will be removed You can buy them on the exchange or at an ATM https://coinatmradar.com. You can find the addresses here buy with credit or debet card online https://www.moonpay.com/buy. After that, send a request with confirmation to e-mail , faster way! [email protected] or [email protected] If both email no answer, you need faster answer and unlock please use TOX 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, tox. Tox ID LockBitSupp: 47C90F99E92AC0ECEAD8C2BD15B21866EBC1195B6E2B0412CE3658E21B696843FF4A8D144B24
URLs

https://coinatmradar.com

https://www.moonpay.com/buy

https://tox.chat/download.html

Signatures

  • Lockbit

    Ransomware family with multiple variants released since late 2019.

  • Rule to detect Lockbit 3.0 ransomware Windows payload 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Renames multiple (615) files with added filename extension

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

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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
  • Modifies Control Panel 2 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ctrsys.exe
    "C:\Users\Admin\AppData\Local\Temp\ctrsys.exe"
    1⤵
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:3304
    • C:\Users\Admin\AppData\Local\Temp\LB3.exe
      "C:\Users\Admin\AppData\Local\Temp\LB3.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Sets desktop wallpaper using registry
      • System Location Discovery: System Language Discovery
      • Modifies Control Panel
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4456
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
        • Drops file in System32 directory
        PID:5816
      • C:\ProgramData\4EB8.tmp
        "C:\ProgramData\4EB8.tmp"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2192
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\4EB8.tmp >> NUL
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4296
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:5872
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3252
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{0C257122-E255-4FEC-A365-2C34BB07F894}.xps" 133686190674970000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:5916

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-786284298-625481688-3210388970-1000\TTTTTTTTTTT

      Filesize

      129B

      MD5

      7431a3fe37b7bbe9332564f5cd15c451

      SHA1

      cde5fed4bd4f05ceef013cc7eca2353ac2bcf985

      SHA256

      c6993bd475f331d976a9aeb7f52b9c5e37123ce92f41ce3e4db9ebce58b87183

      SHA512

      3abb01a51361f5c879dceaad5412d0c8063a2f44cb567f12226239914495e331fc370064b7220b10663d392004c759c25ebb0bbee89bf677f3d34b7ca02edd28

    • C:\MNYHU2Jh1.README.txt

      Filesize

      1KB

      MD5

      70f8acf921f004784b21982bdfb5fb9b

      SHA1

      a5fe82b54b1da9425c680e04ac9a0ea88ff4a225

      SHA256

      497cdf0c2b83ff7b52d2b0e06985a0dd70746291f1c7fef1dd191e286a8f71f4

      SHA512

      04c76d374ac49c6c6d72fd00c0bafe0bb50ab98f8e2e954f32c575720df623d1e1103954475e9a36a79de7820627ef5170d00ac1d768038e50ad1e4e80313084

    • C:\ProgramData\4EB8.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • C:\Users\Admin\AppData\Local\Temp\GGGGGGG

      Filesize

      147KB

      MD5

      dd244f49d5767a7bad51552402a938a0

      SHA1

      aa5a72703eecc0fd8640868901570707722ba9c6

      SHA256

      97795230fb219addf55847ee28eecba41cd794e7a0a8a0d50a20308c611fde74

      SHA512

      8a0c24c49b3a02abd4d519764090d8c45b6ec1fdc2fc58154b0f10d3d83d23259b700a70119859747db6d146da92da71d8af259d6241b13f51514e5965332e84

    • C:\Users\Admin\AppData\Local\Temp\LB3.exe

      Filesize

      147KB

      MD5

      5820e728cfad98d8673d29448c58c7d5

      SHA1

      cfe71685fd09fd14d2d2faa8618b2559438a8b1e

      SHA256

      5ccc9cb2e75c85b87f7244cca81c1acf6dfffe8f35a8c4d0ee00795872a9c9e7

      SHA512

      28ce7d774bd528a83e18fadf74e2826ae99031909e0907c83278604ba72a299942436721443ead9820a7e6bbc1f07c2e325886d316ed529fd12946c20e6cb9d4

    • C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2

      Filesize

      4KB

      MD5

      89d3c32528150a085140a2e940ede7d9

      SHA1

      df817ee2c3ed2dc1d190d1a9e55a88c3fdf07549

      SHA256

      9e790fe8a5f61a65af636bdbc57f9e94e0e7ca0ce23eb364dfaaef6c2f30ceea

      SHA512

      63a30b714457d6399dd023ab873c81e2abce60edaa2345a37eec6b48556276d509d7938e13e97c6893312b40e3d41db5f86874a4a307d16bf787fe82a67ffe63

    • F:\$RECYCLE.BIN\S-1-5-21-786284298-625481688-3210388970-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      61cf1c2d636a284cd4534b213e424f45

      SHA1

      e72b16d547b3ab5b731fa959ba7e410e246863d6

      SHA256

      5df05d07067878a4e6a60bdc2fe7055e6372da0dbfa74fee4f2b225289b34525

      SHA512

      b927b1a20409e0457ae272005e430e5d353c40a6d6adb928a730f72ba88aaae8a865304e9fdfda7b2d3893a2b5ac470c4c9c2a522b2e846a21f449e9116a03e7

    • memory/3304-7-0x0000000006270000-0x00000000062D6000-memory.dmp

      Filesize

      408KB

    • memory/3304-8-0x00000000753AE000-0x00000000753AF000-memory.dmp

      Filesize

      4KB

    • memory/3304-9-0x00000000753A0000-0x0000000075B50000-memory.dmp

      Filesize

      7.7MB

    • memory/3304-6-0x0000000005690000-0x00000000056A8000-memory.dmp

      Filesize

      96KB

    • memory/3304-20-0x0000000007210000-0x000000000721A000-memory.dmp

      Filesize

      40KB

    • memory/3304-21-0x00000000078A0000-0x00000000078F0000-memory.dmp

      Filesize

      320KB

    • memory/3304-1-0x0000000000B60000-0x0000000000B94000-memory.dmp

      Filesize

      208KB

    • memory/3304-4-0x00000000056C0000-0x000000000575C000-memory.dmp

      Filesize

      624KB

    • memory/3304-5-0x00000000753A0000-0x0000000075B50000-memory.dmp

      Filesize

      7.7MB

    • memory/3304-3-0x0000000005580000-0x0000000005612000-memory.dmp

      Filesize

      584KB

    • memory/3304-2-0x0000000005A80000-0x0000000006024000-memory.dmp

      Filesize

      5.6MB

    • memory/3304-0-0x00000000753AE000-0x00000000753AF000-memory.dmp

      Filesize

      4KB

    • memory/3304-898-0x00000000753A0000-0x0000000075B50000-memory.dmp

      Filesize

      7.7MB

    • memory/4456-24-0x0000000002D30000-0x0000000002D40000-memory.dmp

      Filesize

      64KB

    • memory/4456-2974-0x0000000002D30000-0x0000000002D40000-memory.dmp

      Filesize

      64KB

    • memory/4456-2973-0x0000000002D30000-0x0000000002D40000-memory.dmp

      Filesize

      64KB

    • memory/4456-2975-0x0000000002D30000-0x0000000002D40000-memory.dmp

      Filesize

      64KB

    • memory/4456-22-0x0000000002D30000-0x0000000002D40000-memory.dmp

      Filesize

      64KB

    • memory/4456-23-0x0000000002D30000-0x0000000002D40000-memory.dmp

      Filesize

      64KB

    • memory/5916-2990-0x00007FFA5E030000-0x00007FFA5E040000-memory.dmp

      Filesize

      64KB

    • memory/5916-2993-0x00007FFA5E030000-0x00007FFA5E040000-memory.dmp

      Filesize

      64KB

    • memory/5916-2994-0x00007FFA5E030000-0x00007FFA5E040000-memory.dmp

      Filesize

      64KB

    • memory/5916-2992-0x00007FFA5E030000-0x00007FFA5E040000-memory.dmp

      Filesize

      64KB

    • memory/5916-2995-0x00007FFA5E030000-0x00007FFA5E040000-memory.dmp

      Filesize

      64KB

    • memory/5916-3024-0x00007FFA5B900000-0x00007FFA5B910000-memory.dmp

      Filesize

      64KB

    • memory/5916-3025-0x00007FFA5B900000-0x00007FFA5B910000-memory.dmp

      Filesize

      64KB