Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2022, 14:21

General

  • Target

    89259c54c606cd981a4009df679b4f7b.exe

  • Size

    729KB

  • MD5

    89259c54c606cd981a4009df679b4f7b

  • SHA1

    8214aec5f70da8e9a6e0790ff1589f09ccbc4f13

  • SHA256

    86991719c854f9ee191c5212aa100155dc8a34df4ba6812e082368f5d64d07b9

  • SHA512

    915783969a337aa7eda6254d01871aff63b25649b66b5d8de55f38530c6d43c727dfff9639e8e2907822bf69afb8a5dc004be4c9a1a308e97b8d418b05c98b81

  • SSDEEP

    12288:DB4v06RgABssb+rVB2MLJgdjvo0Io9O7yPpOVu1eh4wNhmc1C+uzO3tG9F6/0:DaBvBr65XlJxog2PwVu1eh4wu0CnzB9j

Malware Config

Extracted

Family

djvu

C2

http://winnlinne.com/test1/get.php

Attributes
  • extension

    .pohj

  • offline_id

    tHl9RvVtHhFQisMomKMdXzz2soNLhV0cuok85it1

  • 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-oTIha7SI4s 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: 0578Jhyjd

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
  • Loads dropped DLL 6 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
  • 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.

  • Modifies system certificate store 2 TTPs 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of WriteProcessMemory 59 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\89259c54c606cd981a4009df679b4f7b.exe
    "C:\Users\Admin\AppData\Local\Temp\89259c54c606cd981a4009df679b4f7b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2044
    • C:\Users\Admin\AppData\Local\Temp\89259c54c606cd981a4009df679b4f7b.exe
      "C:\Users\Admin\AppData\Local\Temp\89259c54c606cd981a4009df679b4f7b.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\6cfde270-9d9a-4402-8807-8ff4d587914b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:792
      • C:\Users\Admin\AppData\Local\Temp\89259c54c606cd981a4009df679b4f7b.exe
        "C:\Users\Admin\AppData\Local\Temp\89259c54c606cd981a4009df679b4f7b.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1184
        • C:\Users\Admin\AppData\Local\Temp\89259c54c606cd981a4009df679b4f7b.exe
          "C:\Users\Admin\AppData\Local\Temp\89259c54c606cd981a4009df679b4f7b.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:836
          • C:\Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build2.exe
            "C:\Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:668
            • C:\Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build2.exe
              "C:\Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Modifies system certificate store
              • Suspicious behavior: EnumeratesProcesses
              PID:1704
          • C:\Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build3.exe
            "C:\Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1400
            • 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:540
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {67A262B5-584E-4DAE-AE79-8D12C2F08E7F} S-1-5-21-999675638-2867687379-27515722-1000:ORXGKKZC\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1784
    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:604
      • 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"
        3⤵
        • Creates scheduled task(s)
        PID:1448

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

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

          Filesize

          2KB

          MD5

          6f59ed058aa06aaf5ec6213b955aabd4

          SHA1

          baf7b828a563b8fb6111e4ce35e0055575ad80b4

          SHA256

          2d82e2629fa2e08f28b43b15da43dff56c7f4b23b39d66109c7c61998e35b4d5

          SHA512

          6b0f041dafb98b9eaf70ac0d20a98c56e1c42231c4a4ae6e11582b20d20bf8f96dfd7747739a10d77368994441adb0e181b356f8569697b1f22ab4fe931170ce

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

          Filesize

          60KB

          MD5

          d15aaa7c9be910a9898260767e2490e1

          SHA1

          2090c53f8d9fc3fbdbafd3a1e4dc25520eb74388

          SHA256

          f8ebaaf487cba0c81a17c8cd680bdd2dd8e90d2114ecc54844cffc0cc647848e

          SHA512

          7e1c1a683914b961b5cc2fe5e4ae288b60bab43bfaa21ce4972772aa0589615c19f57e672e1d93e50a7ed7b76fbd2f1b421089dcaed277120b93f8e91b18af94

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

          Filesize

          1KB

          MD5

          0698dbc93ba7b6bef73ba316695f8317

          SHA1

          a444078ff1eb7c88f52cb4e324365926b491ed47

          SHA256

          263292040d77903899257c1d21201dc64d6f8d6b5a1d945cd5b28d0124d7906c

          SHA512

          ebacaa7009aebb88199cd70fd0bb3afe69ed300318cb633edd1c0404e42aef829617f589bcbad6cb7ab4bd0a8ae87f7df1435c786184ecc5de61c8fc6950a900

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

          Filesize

          488B

          MD5

          e8fa9f26b218945fce7ba326c35101ab

          SHA1

          08165a634b8f908e89084a5ad4e0a2b6b2eddd92

          SHA256

          e49ed75eef54f2bfb96068f34c6858eba1ced8f0065c266ad45e32e764f33596

          SHA512

          ef47fce9fd779285d51092ced7fbe08dc55b39d2243e51ac0245bf56422984ff4db756c50fd9e57995d5800d62c7106e31c30be52a6788af6e8a2affaae404d9

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

          Filesize

          342B

          MD5

          48832b8a940bf58df4124262fc47b88d

          SHA1

          cc92cf7b0f248d7b0f4c75f3c645710f227ef40e

          SHA256

          75a2145cbf65ecf9493f904d48d70f87549f292f6bedd9f3c3705f566561f679

          SHA512

          c13f1ca57c56af39ab03a12808da7b016eca2da582584b99943378ca2620c857d8ae9ac32a833f143a2898d1cf59b1b2714edb8e0d7e192d975570892c2b621d

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

          Filesize

          482B

          MD5

          e7671cd89bfe2334c7c6242043eba2d9

          SHA1

          a6dbe2c0ab6b66f4dc2427f1e451df6923da5a2b

          SHA256

          2a1aec3c41a042116bb44ff387b780207fe0ed28e476edfca1ac24c8e137d742

          SHA512

          1f3a4a5ee27c14e45c3d1bf16f522797d6a3b5c512ed7f5778c5623370b9b972af4e6ba37db7805498c85aefbe3cd22eab2e7fd763cf95cf0bdf92b5d29dc423

        • C:\Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • C:\Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • C:\Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • C:\Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\6cfde270-9d9a-4402-8807-8ff4d587914b\89259c54c606cd981a4009df679b4f7b.exe

          Filesize

          729KB

          MD5

          89259c54c606cd981a4009df679b4f7b

          SHA1

          8214aec5f70da8e9a6e0790ff1589f09ccbc4f13

          SHA256

          86991719c854f9ee191c5212aa100155dc8a34df4ba6812e082368f5d64d07b9

          SHA512

          915783969a337aa7eda6254d01871aff63b25649b66b5d8de55f38530c6d43c727dfff9639e8e2907822bf69afb8a5dc004be4c9a1a308e97b8d418b05c98b81

        • 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

        • \ProgramData\mozglue.dll

          Filesize

          593KB

          MD5

          c8fd9be83bc728cc04beffafc2907fe9

          SHA1

          95ab9f701e0024cedfbd312bcfe4e726744c4f2e

          SHA256

          ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

          SHA512

          fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

        • \ProgramData\nss3.dll

          Filesize

          2.0MB

          MD5

          1cc453cdf74f31e4d913ff9c10acdde2

          SHA1

          6e85eae544d6e965f15fa5c39700fa7202f3aafe

          SHA256

          ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

          SHA512

          dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

        • \Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • \Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • \Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • \Users\Admin\AppData\Local\0591b4f0-535b-4b75-a660-9656f6562151\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • memory/668-97-0x0000000000220000-0x000000000026F000-memory.dmp

          Filesize

          316KB

        • memory/668-95-0x000000000069B000-0x00000000006C7000-memory.dmp

          Filesize

          176KB

        • memory/836-102-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/836-80-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/836-73-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1184-67-0x0000000001E20000-0x0000000001EB2000-memory.dmp

          Filesize

          584KB

        • memory/1184-71-0x0000000001E20000-0x0000000001EB2000-memory.dmp

          Filesize

          584KB

        • memory/1704-90-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/1704-109-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/1704-108-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/1704-99-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/1704-101-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/1964-66-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1964-57-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1964-62-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1964-60-0x0000000075F81000-0x0000000075F83000-memory.dmp

          Filesize

          8KB

        • memory/1964-61-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2044-54-0x0000000000320000-0x00000000003B2000-memory.dmp

          Filesize

          584KB

        • memory/2044-56-0x0000000001F30000-0x000000000204B000-memory.dmp

          Filesize

          1.1MB

        • memory/2044-55-0x0000000000320000-0x00000000003B2000-memory.dmp

          Filesize

          584KB