Analysis

  • max time kernel
    61s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/10/2022, 01:42

General

  • Target

    497fcb88103526936805fc129e14883346a2618bae9b8871fedfc6e6f156cc33.exe

  • Size

    736KB

  • MD5

    5446cc7ebd565e3addb00474b48f3329

  • SHA1

    5bbdd99fff5fb9eac17c78a458191ea9cdb85d7a

  • SHA256

    497fcb88103526936805fc129e14883346a2618bae9b8871fedfc6e6f156cc33

  • SHA512

    bfd5fde7e5c753fdca6d99197b5b7cb03da8479fc1002191d118cf11ac5329c0c5fb7ffaba3c68bc301d8ca99bbf1b52c12ea62c0838bf2410332c8a788d1f42

  • SSDEEP

    12288:+apg6rL9EPS9tYMfV57CaqsfC8OpV3S9wV+NtqnYm5SX:+gvCPSzpnCa/CMtfm

Malware Config

Extracted

Family

djvu

C2

http://winnlinne.com/lancer/get.php

Attributes
  • extension

    .tury

  • offline_id

    Uz66zEbmA32arcxwT81zZhkb23026oHz5iSp8qt1

  • payload_url

    http://rgyui.top/dl/build2.exe

    http://winnlinne.com/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-o7UXxOstmw Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0585Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

55

Botnet

517

C2

https://t.me/truewallets

https://mas.to/@zara99

http://116.203.10.3:80

Attributes
  • profile_id

    517

Signatures

  • Detected Djvu ransomware 10 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 55 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\497fcb88103526936805fc129e14883346a2618bae9b8871fedfc6e6f156cc33.exe
    "C:\Users\Admin\AppData\Local\Temp\497fcb88103526936805fc129e14883346a2618bae9b8871fedfc6e6f156cc33.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Users\Admin\AppData\Local\Temp\497fcb88103526936805fc129e14883346a2618bae9b8871fedfc6e6f156cc33.exe
      "C:\Users\Admin\AppData\Local\Temp\497fcb88103526936805fc129e14883346a2618bae9b8871fedfc6e6f156cc33.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4888
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\856c34f3-563d-42ea-8050-1816d057ade2" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1308
      • C:\Users\Admin\AppData\Local\Temp\497fcb88103526936805fc129e14883346a2618bae9b8871fedfc6e6f156cc33.exe
        "C:\Users\Admin\AppData\Local\Temp\497fcb88103526936805fc129e14883346a2618bae9b8871fedfc6e6f156cc33.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:364
        • C:\Users\Admin\AppData\Local\Temp\497fcb88103526936805fc129e14883346a2618bae9b8871fedfc6e6f156cc33.exe
          "C:\Users\Admin\AppData\Local\Temp\497fcb88103526936805fc129e14883346a2618bae9b8871fedfc6e6f156cc33.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3956
          • C:\Users\Admin\AppData\Local\b111e584-4b74-462b-98db-fdc02954dacc\build2.exe
            "C:\Users\Admin\AppData\Local\b111e584-4b74-462b-98db-fdc02954dacc\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2248
            • C:\Users\Admin\AppData\Local\b111e584-4b74-462b-98db-fdc02954dacc\build2.exe
              "C:\Users\Admin\AppData\Local\b111e584-4b74-462b-98db-fdc02954dacc\build2.exe"
              6⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:3264
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" C/c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\b111e584-4b74-462b-98db-fdc02954dacc\build2.exe" & del C:\PrograData\*.dll & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:1764
                • C:\Windows\SysWOW64\taskkill.exe
                  taskkill /im build2.exe /f
                  8⤵
                  • Kills process with taskkill
                  • Suspicious use of AdjustPrivilegeToken
                  PID:900
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4716
          • C:\Users\Admin\AppData\Local\b111e584-4b74-462b-98db-fdc02954dacc\build3.exe
            "C:\Users\Admin\AppData\Local\b111e584-4b74-462b-98db-fdc02954dacc\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4440
            • C:\Windows\SysWOW64\schtasks.exe
              /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
              6⤵
              • Creates scheduled task(s)
              PID:1420
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:4996
    • C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
      2⤵
      • Creates scheduled task(s)
      PID:704

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\ProgramData\mozglue.dll

          Filesize

          593KB

          MD5

          c8fd9be83bc728cc04beffafc2907fe9

          SHA1

          95ab9f701e0024cedfbd312bcfe4e726744c4f2e

          SHA256

          ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

          SHA512

          fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

        • C:\ProgramData\nss3.dll

          Filesize

          2.0MB

          MD5

          1cc453cdf74f31e4d913ff9c10acdde2

          SHA1

          6e85eae544d6e965f15fa5c39700fa7202f3aafe

          SHA256

          ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

          SHA512

          dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

          Filesize

          2KB

          MD5

          006c98bc42ac1d15f0ec70e3488783c5

          SHA1

          a8c8302826468c903b511e206d6d058e2c3acdaa

          SHA256

          e24883740fbed2781e4df4e5387cd95c3345ec9944edeeb36babd2c10135fa00

          SHA512

          e0caea17f99a18483e0195c5311942c195ef42532f1868bfb5c64b3f6cb72cc0fc58414176a9bfc66452e11d17c2058eafb483a41890f502ec76dc3a6807f2f4

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

          Filesize

          1KB

          MD5

          97ab7ffd65186e85f453dc7c02637528

          SHA1

          f22312a6a44613be85c0370878456a965f869a40

          SHA256

          630df8e970cc3b1ad508db713dd8be52e0ac7a5826f3f264a266232f9a1c23ee

          SHA512

          37d90c98e72ad55b2cbb938541c81bac1aa9d2b8a7e19f0fbfaa365b49e7bef2d3199f03e46aa9fbf3055f3701d21860820c451065f7e425d39bf86ca606bfb0

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

          Filesize

          488B

          MD5

          f5202693f9a0a70a46586bb4e87c5b3d

          SHA1

          e49fa0f0d29dfed7545f60c895606ef61bf4a190

          SHA256

          a5e6555a61e3ba7374f6b98a01391b74135d9c5d33b70eb7d14e6d625956e87f

          SHA512

          3186d214aeb57a0face949154fead4c45ce9f42f64b3ca85c80b8c67fe418ab6d0974d8239aa13ab38721bfe0ffe166ae05e439edd3000c6b6549cfe3111021c

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

          Filesize

          482B

          MD5

          36042099d80f9b90bfa528bc4f1b799c

          SHA1

          e881fb09c7a3ae686eb547ec2b34018187a95815

          SHA256

          eee241da1ea36de973a2cee710da152c0086db7c8330c5906ae63032fde134fe

          SHA512

          71dcbfb44db7d8a2c786feb60caa12c54f8ec832847946cc6792066bf9402c0eb69f9be75b077230a87ac5b4f3a3d0f19dfafdad15063e4d238a4b851b4ac7ee

        • C:\Users\Admin\AppData\Local\856c34f3-563d-42ea-8050-1816d057ade2\497fcb88103526936805fc129e14883346a2618bae9b8871fedfc6e6f156cc33.exe

          Filesize

          736KB

          MD5

          5446cc7ebd565e3addb00474b48f3329

          SHA1

          5bbdd99fff5fb9eac17c78a458191ea9cdb85d7a

          SHA256

          497fcb88103526936805fc129e14883346a2618bae9b8871fedfc6e6f156cc33

          SHA512

          bfd5fde7e5c753fdca6d99197b5b7cb03da8479fc1002191d118cf11ac5329c0c5fb7ffaba3c68bc301d8ca99bbf1b52c12ea62c0838bf2410332c8a788d1f42

        • C:\Users\Admin\AppData\Local\b111e584-4b74-462b-98db-fdc02954dacc\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • C:\Users\Admin\AppData\Local\b111e584-4b74-462b-98db-fdc02954dacc\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • C:\Users\Admin\AppData\Local\b111e584-4b74-462b-98db-fdc02954dacc\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • C:\Users\Admin\AppData\Local\b111e584-4b74-462b-98db-fdc02954dacc\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\b111e584-4b74-462b-98db-fdc02954dacc\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • memory/364-146-0x00000000008B1000-0x0000000000943000-memory.dmp

          Filesize

          584KB

        • memory/2248-161-0x000000000080D000-0x0000000000839000-memory.dmp

          Filesize

          176KB

        • memory/2248-162-0x0000000002220000-0x000000000226F000-memory.dmp

          Filesize

          316KB

        • memory/2344-135-0x000000000087E000-0x0000000000910000-memory.dmp

          Filesize

          584KB

        • memory/2344-136-0x0000000002360000-0x000000000247B000-memory.dmp

          Filesize

          1.1MB

        • memory/3264-190-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/3264-164-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/3264-168-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/3264-160-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/3264-157-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/3956-191-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3956-145-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3956-152-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3956-147-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4888-140-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4888-137-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4888-142-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4888-134-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4888-133-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB