Analysis

  • max time kernel
    140s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2022, 12:12

General

  • Target

    78603455f9980bdf3601c9e2a4ecca974958d624f6d29426c7160ab49b8b5f07.exe

  • Size

    729KB

  • MD5

    c1487347d139d1e6b5f472c317c36c63

  • SHA1

    a63f1ce4655bd5c25cfa4caac1e5ab0760cb7c50

  • SHA256

    78603455f9980bdf3601c9e2a4ecca974958d624f6d29426c7160ab49b8b5f07

  • SHA512

    d85c759822f7de6e9ebf9276014db66783f64b1ddd41691cf78e195a03e0cd79dcd8db4925a9e455750d93da388d67c4e234857b60c11628cc6a64171aa4b5f2

  • SSDEEP

    12288:fTUYAtqkknzk+PvhyMYx9cymhlfN2nri87+naEg/twjxe9L3:fA3CIAJjYvc7p85+aEOw9e9L

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .powz

  • 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: 0581Jhyjd

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 9 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 2 IoCs
  • Checks computer location settings 2 TTPs 2 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 2 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.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\78603455f9980bdf3601c9e2a4ecca974958d624f6d29426c7160ab49b8b5f07.exe
    "C:\Users\Admin\AppData\Local\Temp\78603455f9980bdf3601c9e2a4ecca974958d624f6d29426c7160ab49b8b5f07.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5096
    • C:\Users\Admin\AppData\Local\Temp\78603455f9980bdf3601c9e2a4ecca974958d624f6d29426c7160ab49b8b5f07.exe
      "C:\Users\Admin\AppData\Local\Temp\78603455f9980bdf3601c9e2a4ecca974958d624f6d29426c7160ab49b8b5f07.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3964
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\ca978161-485f-4ea5-b699-4a59e15c3650" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1220
      • C:\Users\Admin\AppData\Local\Temp\78603455f9980bdf3601c9e2a4ecca974958d624f6d29426c7160ab49b8b5f07.exe
        "C:\Users\Admin\AppData\Local\Temp\78603455f9980bdf3601c9e2a4ecca974958d624f6d29426c7160ab49b8b5f07.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2676
        • C:\Users\Admin\AppData\Local\Temp\78603455f9980bdf3601c9e2a4ecca974958d624f6d29426c7160ab49b8b5f07.exe
          "C:\Users\Admin\AppData\Local\Temp\78603455f9980bdf3601c9e2a4ecca974958d624f6d29426c7160ab49b8b5f07.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:308
          • C:\Users\Admin\AppData\Local\40728f95-c546-4760-9f7e-ba5349b1a181\build2.exe
            "C:\Users\Admin\AppData\Local\40728f95-c546-4760-9f7e-ba5349b1a181\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4528
            • C:\Users\Admin\AppData\Local\40728f95-c546-4760-9f7e-ba5349b1a181\build2.exe
              "C:\Users\Admin\AppData\Local\40728f95-c546-4760-9f7e-ba5349b1a181\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:4060

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\Local\40728f95-c546-4760-9f7e-ba5349b1a181\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • C:\Users\Admin\AppData\Local\40728f95-c546-4760-9f7e-ba5349b1a181\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • C:\Users\Admin\AppData\Local\40728f95-c546-4760-9f7e-ba5349b1a181\build2.exe

          Filesize

          321KB

          MD5

          5fd8c38657bb9393bb4736c880675223

          SHA1

          f3a03b2e75cef22262f6677e3832b6ad9327905c

          SHA256

          2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6

          SHA512

          43c82f6db716792a770a3573a9d20cb69a2421ccc2bb875e57f4270d92c9289ee684deda19e3232c50f4675aaf86de173f73376a00f927a8d9847f60b8b732fe

        • C:\Users\Admin\AppData\Local\ca978161-485f-4ea5-b699-4a59e15c3650\78603455f9980bdf3601c9e2a4ecca974958d624f6d29426c7160ab49b8b5f07.exe

          Filesize

          729KB

          MD5

          c1487347d139d1e6b5f472c317c36c63

          SHA1

          a63f1ce4655bd5c25cfa4caac1e5ab0760cb7c50

          SHA256

          78603455f9980bdf3601c9e2a4ecca974958d624f6d29426c7160ab49b8b5f07

          SHA512

          d85c759822f7de6e9ebf9276014db66783f64b1ddd41691cf78e195a03e0cd79dcd8db4925a9e455750d93da388d67c4e234857b60c11628cc6a64171aa4b5f2

        • memory/308-146-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/308-148-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/308-145-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2676-147-0x00000000022A2000-0x0000000002333000-memory.dmp

          Filesize

          580KB

        • memory/3964-137-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3964-142-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3964-138-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3964-136-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3964-135-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4060-159-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/4060-153-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/4060-161-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/4060-160-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/4060-158-0x0000000000400000-0x0000000000463000-memory.dmp

          Filesize

          396KB

        • memory/4528-157-0x00000000021F0000-0x000000000223F000-memory.dmp

          Filesize

          316KB

        • memory/4528-155-0x000000000072D000-0x0000000000759000-memory.dmp

          Filesize

          176KB

        • memory/5096-132-0x00000000008E0000-0x0000000000971000-memory.dmp

          Filesize

          580KB

        • memory/5096-133-0x0000000002340000-0x000000000245B000-memory.dmp

          Filesize

          1.1MB