Analysis

  • max time kernel
    143s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/08/2023, 09:38

General

  • Target

    8f986fe6dd2b48159135127cfc297e842bb42a784751e9cd7143cad6672c31a8.exe

  • Size

    756KB

  • MD5

    b1d9d3044fd8e5af6479593725effd66

  • SHA1

    4426806f1169f1d12fe9114b99a3792ce79cf4ef

  • SHA256

    8f986fe6dd2b48159135127cfc297e842bb42a784751e9cd7143cad6672c31a8

  • SHA512

    62f7ded157fcda5cc0f1c7d1e79f2309a004c77985c80aa42be3a52ad49d618066a666a3a90a65cf053463a7ebb9dbedd9ee7c367864fb38589b815cf02c3af7

  • SSDEEP

    12288:GEptT4oba7tk8Cs1SSKackQdvzxlXKsHrB/lrG7q92jdMzH:GGT4obMtEsmpr1Cojrb4jazH

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/raud/get.php

Attributes
  • extension

    .taoy

  • offline_id

    cshgakAnUmp40qfk3nvyiyRRVOf96kqTUfJ1MNt1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.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-hmnZYNZHN5 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: 0761JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.2

Botnet

35aa2808fb90f9e9dac907e1be77f310

C2

https://t.me/odyssey_tg

https://steamcommunity.com/profiles/76561199541261200

Attributes
  • profile_id_v2

    35aa2808fb90f9e9dac907e1be77f310

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.30 (KHTML, like Gecko) Chrome/115.0.1.0 Safari/537.30

Signatures

  • Detected Djvu ransomware 16 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
  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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).

  • 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
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f986fe6dd2b48159135127cfc297e842bb42a784751e9cd7143cad6672c31a8.exe
    "C:\Users\Admin\AppData\Local\Temp\8f986fe6dd2b48159135127cfc297e842bb42a784751e9cd7143cad6672c31a8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4896
    • C:\Users\Admin\AppData\Local\Temp\8f986fe6dd2b48159135127cfc297e842bb42a784751e9cd7143cad6672c31a8.exe
      "C:\Users\Admin\AppData\Local\Temp\8f986fe6dd2b48159135127cfc297e842bb42a784751e9cd7143cad6672c31a8.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1908
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\f2f3acd0-312f-4eea-9c3d-1fe7d7ea73df" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2156
      • C:\Users\Admin\AppData\Local\Temp\8f986fe6dd2b48159135127cfc297e842bb42a784751e9cd7143cad6672c31a8.exe
        "C:\Users\Admin\AppData\Local\Temp\8f986fe6dd2b48159135127cfc297e842bb42a784751e9cd7143cad6672c31a8.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4864
        • C:\Users\Admin\AppData\Local\Temp\8f986fe6dd2b48159135127cfc297e842bb42a784751e9cd7143cad6672c31a8.exe
          "C:\Users\Admin\AppData\Local\Temp\8f986fe6dd2b48159135127cfc297e842bb42a784751e9cd7143cad6672c31a8.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3680
          • C:\Users\Admin\AppData\Local\c03dc430-444b-40a4-bcf9-45081134bc9f\build2.exe
            "C:\Users\Admin\AppData\Local\c03dc430-444b-40a4-bcf9-45081134bc9f\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2820
            • C:\Users\Admin\AppData\Local\c03dc430-444b-40a4-bcf9-45081134bc9f\build2.exe
              "C:\Users\Admin\AppData\Local\c03dc430-444b-40a4-bcf9-45081134bc9f\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4676
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\c03dc430-444b-40a4-bcf9-45081134bc9f\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:3688
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4492
          • C:\Users\Admin\AppData\Local\c03dc430-444b-40a4-bcf9-45081134bc9f\build3.exe
            "C:\Users\Admin\AppData\Local\c03dc430-444b-40a4-bcf9-45081134bc9f\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1132
            • 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:1736
  • 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:1944
    • 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:4112

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        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

          38fe20464f4566665a3e93bc25958d45

          SHA1

          f1da804263c20548ab1520bb7f728cba31aa1af9

          SHA256

          aa075f76b582d3c8d6aecc2a2b643a6434a818e44b20933625a2c30d21d78d7a

          SHA512

          c1ed7d73f7864e274259580c432f6efcd5b08251fa7e131d731b8421cfcb440d6436a57bac81fa74db9f12eb3aef8853bdf5454773dc33d89354ba1e9ba2679e

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

          Filesize

          1KB

          MD5

          979482ca9ef939d4a62f58866cbfeda6

          SHA1

          b0fcfbc8c9bf35a6c68d777e08a78b482127d34c

          SHA256

          30581896718a00f5ca49085d01bbb9d715d99231c20c46ee88e3539e7a117c35

          SHA512

          7baf0e98e8b8245d959cb6d232e366533d5a37bcd57fea13f979d422c019ad458a5b5a7d3b3bbed919750e128792444f692b1d583a8b9a96a83922bea4aa983b

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

          Filesize

          488B

          MD5

          14c7d76e7b5718aa2571496b3f30ebf8

          SHA1

          4b619da8380d271ff084a2100da47a2fc3dd8280

          SHA256

          f4bba5ac2a6a978a15cfe239fb62f59248e51131f32e4817b85c89c5e70dc662

          SHA512

          ed35f0d55b294895bd2d8881dd4091f7017ab79ff0a93381bec0bdfd02b86cda7152f5dd04d996b358e1788b28d6016151d5aec9ddeea4ff408d211277f05e81

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

          Filesize

          482B

          MD5

          c2798cbe3b7ff5f0bee0c8914d278967

          SHA1

          5646e3a6125c0ed47ec2ae226276d46b4d26795c

          SHA256

          ed284feb53d9e67f36670e641d8fb10ad7fa3b90bb729ca6e0672d3929d1346b

          SHA512

          7c9668695b27a6b5f97f36357558e4332d7c0f8d153c3bc299562ae01eaa245bb7f063947d8f02c4d47ad939ca04c0d238ca651ef19d2277198c92f3cedef8a0

        • C:\Users\Admin\AppData\Local\c03dc430-444b-40a4-bcf9-45081134bc9f\build2.exe

          Filesize

          375KB

          MD5

          6076ec9fc98856b3b627751f92843a35

          SHA1

          5520b12ee2f8d39d6c8def16c7d472d08d43ec65

          SHA256

          a3ec2956fea5d99ce309b2b2209dc4dbcbf5330482ebbe46a754eb8c0885a209

          SHA512

          36bba1852037db9c81808382bca048cd94dcdbdaa1e7108e39493fa4d48aa9164b79abb44fb2f766592516b586a558d14b20ae6e8ebb131f61d738b892a6d1be

        • C:\Users\Admin\AppData\Local\c03dc430-444b-40a4-bcf9-45081134bc9f\build2.exe

          Filesize

          375KB

          MD5

          6076ec9fc98856b3b627751f92843a35

          SHA1

          5520b12ee2f8d39d6c8def16c7d472d08d43ec65

          SHA256

          a3ec2956fea5d99ce309b2b2209dc4dbcbf5330482ebbe46a754eb8c0885a209

          SHA512

          36bba1852037db9c81808382bca048cd94dcdbdaa1e7108e39493fa4d48aa9164b79abb44fb2f766592516b586a558d14b20ae6e8ebb131f61d738b892a6d1be

        • C:\Users\Admin\AppData\Local\c03dc430-444b-40a4-bcf9-45081134bc9f\build2.exe

          Filesize

          375KB

          MD5

          6076ec9fc98856b3b627751f92843a35

          SHA1

          5520b12ee2f8d39d6c8def16c7d472d08d43ec65

          SHA256

          a3ec2956fea5d99ce309b2b2209dc4dbcbf5330482ebbe46a754eb8c0885a209

          SHA512

          36bba1852037db9c81808382bca048cd94dcdbdaa1e7108e39493fa4d48aa9164b79abb44fb2f766592516b586a558d14b20ae6e8ebb131f61d738b892a6d1be

        • C:\Users\Admin\AppData\Local\c03dc430-444b-40a4-bcf9-45081134bc9f\build2.exe

          Filesize

          375KB

          MD5

          6076ec9fc98856b3b627751f92843a35

          SHA1

          5520b12ee2f8d39d6c8def16c7d472d08d43ec65

          SHA256

          a3ec2956fea5d99ce309b2b2209dc4dbcbf5330482ebbe46a754eb8c0885a209

          SHA512

          36bba1852037db9c81808382bca048cd94dcdbdaa1e7108e39493fa4d48aa9164b79abb44fb2f766592516b586a558d14b20ae6e8ebb131f61d738b892a6d1be

        • C:\Users\Admin\AppData\Local\c03dc430-444b-40a4-bcf9-45081134bc9f\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\c03dc430-444b-40a4-bcf9-45081134bc9f\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\c03dc430-444b-40a4-bcf9-45081134bc9f\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\f2f3acd0-312f-4eea-9c3d-1fe7d7ea73df\8f986fe6dd2b48159135127cfc297e842bb42a784751e9cd7143cad6672c31a8.exe

          Filesize

          756KB

          MD5

          b1d9d3044fd8e5af6479593725effd66

          SHA1

          4426806f1169f1d12fe9114b99a3792ce79cf4ef

          SHA256

          8f986fe6dd2b48159135127cfc297e842bb42a784751e9cd7143cad6672c31a8

          SHA512

          62f7ded157fcda5cc0f1c7d1e79f2309a004c77985c80aa42be3a52ad49d618066a666a3a90a65cf053463a7ebb9dbedd9ee7c367864fb38589b815cf02c3af7

        • 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/1908-135-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1908-136-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1908-138-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1908-148-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1908-139-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2820-183-0x0000000002480000-0x00000000024DB000-memory.dmp

          Filesize

          364KB

        • memory/2820-181-0x0000000002540000-0x0000000002640000-memory.dmp

          Filesize

          1024KB

        • memory/3680-153-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3680-206-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3680-255-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3680-165-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3680-163-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3680-166-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3680-151-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3680-152-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3680-159-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3680-158-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4676-252-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB

        • memory/4676-209-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/4676-187-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB

        • memory/4676-186-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB

        • memory/4676-251-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB

        • memory/4676-185-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB

        • memory/4676-253-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB

        • memory/4676-182-0x0000000000400000-0x000000000046F000-memory.dmp

          Filesize

          444KB

        • memory/4896-133-0x00000000035D0000-0x0000000003661000-memory.dmp

          Filesize

          580KB

        • memory/4896-137-0x00000000035D0000-0x0000000003661000-memory.dmp

          Filesize

          580KB

        • memory/4896-134-0x0000000003670000-0x000000000378B000-memory.dmp

          Filesize

          1.1MB