Analysis

  • max time kernel
    63s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/09/2022, 03:01

General

  • Target

    file.exe

  • Size

    847KB

  • MD5

    22adb2a2587a8eb65164312008085d2a

  • SHA1

    3046ae0a0f10403c4195d1aa8f543d7c2495e825

  • SHA256

    5ab8d32927203def3d2ceebbed3917262444235b9750e1ca6d73b0649ce1207f

  • SHA512

    8877692b313acf2fa5e8c1f784dd63fd0ea389aa2624c5b028823371ec90864b10cf0db82d5ff2fce740e2728dd2248bd2cac3fff82ae2e108da0fbd846c5fde

  • SSDEEP

    24576:avYgFm8jQbshYeSc45K/Pe2n1QmsjKWaDi:avY+jssWeSct/22nqmsjKWa

Malware Config

Extracted

Family

djvu

C2

http://winnlinne.com/test3/get.php

Attributes
  • extension

    .ofoq

  • offline_id

    xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1

  • 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-EWKSsSJiVn 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: 0568Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

54.7

Botnet

517

C2

https://t.me/trampapanam

https://nerdculture.de/@yoxhyp

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 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3496
    • C:\Users\Admin\AppData\Local\Temp\file.exe
      "C:\Users\Admin\AppData\Local\Temp\file.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5088
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\d1ec3fad-463b-494b-b5ad-8f9b54391cbf" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4700
      • C:\Users\Admin\AppData\Local\Temp\file.exe
        "C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4688
        • C:\Users\Admin\AppData\Local\Temp\file.exe
          "C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4656
          • C:\Users\Admin\AppData\Local\0fb8361a-41c9-412f-a7cf-aae674acda85\build2.exe
            "C:\Users\Admin\AppData\Local\0fb8361a-41c9-412f-a7cf-aae674acda85\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3892
            • C:\Users\Admin\AppData\Local\0fb8361a-41c9-412f-a7cf-aae674acda85\build2.exe
              "C:\Users\Admin\AppData\Local\0fb8361a-41c9-412f-a7cf-aae674acda85\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:3732
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" S/c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\0fb8361a-41c9-412f-a7cf-aae674acda85\build2.exe" & del C:\PrograData\*.dll & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4796
                • C:\Windows\SysWOW64\taskkill.exe
                  taskkill /im build2.exe /f
                  8⤵
                  • Kills process with taskkill
                  • Suspicious use of AdjustPrivilegeToken
                  PID:3504
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:2928
          • C:\Users\Admin\AppData\Local\0fb8361a-41c9-412f-a7cf-aae674acda85\build3.exe
            "C:\Users\Admin\AppData\Local\0fb8361a-41c9-412f-a7cf-aae674acda85\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1368
            • 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:3524
  • 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:688
    • 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:5064

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

          3229b6929fc9caec79e3e5ad740250c6

          SHA1

          d677cb89c767b4c4a444fedfa53dd6c8aa1d7d6e

          SHA256

          ece826b5b4484d173ea804773ca9a13c7248d2f6f3c8a7efeea2a9e3691d7628

          SHA512

          79b5ab3c41f03f913c0c947c6b6c66f396af97f7f69b3df72622beb9fddf8c6cc1a4f830d3edbd91ec570ce59531f09db54e51a2694a8b330ded69fd932036d1

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

          Filesize

          1KB

          MD5

          edcd4c783b2b2c906602519bd8f697f4

          SHA1

          fc56fded4065d6960c6507cac4264dfd2b038004

          SHA256

          367e0ac4e24f1d1530de05a6abf81d6b572c0546b5aa134c246fa1514582fd90

          SHA512

          cb23a82c06211121e39ed0dbec5928b1a85aca7c25f2c060d609350e3a94bf82e9159a2a4d5e67295fc29bac22c95d525ea2461a0000d24c6c4cb630520f68d0

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

          Filesize

          488B

          MD5

          cc3d2aa273e81b45e24fdc088d7660ea

          SHA1

          dcadb57162376af655cc003a9a2a55bea3f05df8

          SHA256

          262aa1c19b63a1f9137f9c4cb664e0798ce3f696f34b9f5fbef7e114dca86193

          SHA512

          53d8d3507d2a3d67356c3c33a182c2d1f535fdb8508b594e9dfe46c43bfd24fce99c3f9b7cef23d3bb1f92f9aa8881ad1b45f4ac66f57a1fc7ebc986d6d8961c

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

          Filesize

          482B

          MD5

          151a879269327859b036d02e62a3dd24

          SHA1

          c8218e8015e5eae5b8b69513449a41d5b3dc28e6

          SHA256

          c366c7ba82c79b3e5817fb835ee7386b2a303fc1e9099fadd45875401f8ed7ff

          SHA512

          39e35f05511429e33659f9058440d2dd5e87cdd1b6bc2ed8e190b080b9d78b8106b19c579e86d6c486002ac2cd55f2acfccf23acaae1541a8cc4a910202c0d91

        • C:\Users\Admin\AppData\Local\0fb8361a-41c9-412f-a7cf-aae674acda85\build2.exe

          Filesize

          418KB

          MD5

          bc47d3a0d4a74adc40b3a7035344becb

          SHA1

          dd80bbe70106b62ea58924173a364cc936a0b1f4

          SHA256

          06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

          SHA512

          4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

        • C:\Users\Admin\AppData\Local\0fb8361a-41c9-412f-a7cf-aae674acda85\build2.exe

          Filesize

          418KB

          MD5

          bc47d3a0d4a74adc40b3a7035344becb

          SHA1

          dd80bbe70106b62ea58924173a364cc936a0b1f4

          SHA256

          06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

          SHA512

          4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

        • C:\Users\Admin\AppData\Local\0fb8361a-41c9-412f-a7cf-aae674acda85\build2.exe

          Filesize

          418KB

          MD5

          bc47d3a0d4a74adc40b3a7035344becb

          SHA1

          dd80bbe70106b62ea58924173a364cc936a0b1f4

          SHA256

          06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

          SHA512

          4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

        • C:\Users\Admin\AppData\Local\0fb8361a-41c9-412f-a7cf-aae674acda85\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\0fb8361a-41c9-412f-a7cf-aae674acda85\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\d1ec3fad-463b-494b-b5ad-8f9b54391cbf\file.exe

          Filesize

          847KB

          MD5

          22adb2a2587a8eb65164312008085d2a

          SHA1

          3046ae0a0f10403c4195d1aa8f543d7c2495e825

          SHA256

          5ab8d32927203def3d2ceebbed3917262444235b9750e1ca6d73b0649ce1207f

          SHA512

          8877692b313acf2fa5e8c1f784dd63fd0ea389aa2624c5b028823371ec90864b10cf0db82d5ff2fce740e2728dd2248bd2cac3fff82ae2e108da0fbd846c5fde

        • 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/3496-136-0x0000000002270000-0x000000000238B000-memory.dmp

          Filesize

          1.1MB

        • memory/3496-135-0x00000000009C2000-0x0000000000A53000-memory.dmp

          Filesize

          580KB

        • memory/3732-163-0x0000000000400000-0x000000000045B000-memory.dmp

          Filesize

          364KB

        • memory/3732-161-0x0000000000400000-0x000000000045B000-memory.dmp

          Filesize

          364KB

        • memory/3732-164-0x0000000000400000-0x000000000045B000-memory.dmp

          Filesize

          364KB

        • memory/3732-167-0x0000000000400000-0x000000000045B000-memory.dmp

          Filesize

          364KB

        • memory/3732-168-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/3732-190-0x0000000000400000-0x000000000045B000-memory.dmp

          Filesize

          364KB

        • memory/3892-166-0x00000000008E0000-0x0000000000927000-memory.dmp

          Filesize

          284KB

        • memory/3892-165-0x00000000006FE000-0x0000000000727000-memory.dmp

          Filesize

          164KB

        • memory/4656-152-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4656-147-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4656-145-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4656-188-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4688-146-0x00000000009A5000-0x0000000000A36000-memory.dmp

          Filesize

          580KB

        • memory/5088-142-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/5088-138-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/5088-137-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/5088-134-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/5088-133-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB