Analysis

  • max time kernel
    121s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/10/2022, 00:03

General

  • Target

    4fc20c09ea7a0070dd0cd5605ebaf27a1c5695a7a5d2aa5adcb0522d645fef77.exe

  • Size

    747KB

  • MD5

    90d802d1c0180db512db1fba36c2eff7

  • SHA1

    85b8f2fefb93b75e47238827d2ad3c6ec53beefc

  • SHA256

    4fc20c09ea7a0070dd0cd5605ebaf27a1c5695a7a5d2aa5adcb0522d645fef77

  • SHA512

    d7d6f0afc7676e4b2bc4bf296be7dfa9425a0d4ca8b9bd911c28ae8d7468664d13ba87f2d8b12c62ee28cfe3156771f34994be8e61ca592d1a5cbb620d9c5229

  • SSDEEP

    12288:AHPuxiQMtvTKmL80dJrjldNUDzjgk97EH2PTfq4fKFKiInmqdaT5X49i7Gv:AvaMtvJdFuzjtk2fqsTRmv5XciA

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

55.1

Botnet

517

C2

https://t.me/tg_privatetalk

https://nerdculture.de/@yixehi33

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 3 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
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4fc20c09ea7a0070dd0cd5605ebaf27a1c5695a7a5d2aa5adcb0522d645fef77.exe
    "C:\Users\Admin\AppData\Local\Temp\4fc20c09ea7a0070dd0cd5605ebaf27a1c5695a7a5d2aa5adcb0522d645fef77.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3932
    • C:\Users\Admin\AppData\Local\Temp\4fc20c09ea7a0070dd0cd5605ebaf27a1c5695a7a5d2aa5adcb0522d645fef77.exe
      "C:\Users\Admin\AppData\Local\Temp\4fc20c09ea7a0070dd0cd5605ebaf27a1c5695a7a5d2aa5adcb0522d645fef77.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5040
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\971e0322-3e21-4dee-9889-b0440b968a90" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1848
      • C:\Users\Admin\AppData\Local\Temp\4fc20c09ea7a0070dd0cd5605ebaf27a1c5695a7a5d2aa5adcb0522d645fef77.exe
        "C:\Users\Admin\AppData\Local\Temp\4fc20c09ea7a0070dd0cd5605ebaf27a1c5695a7a5d2aa5adcb0522d645fef77.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2292
        • C:\Users\Admin\AppData\Local\Temp\4fc20c09ea7a0070dd0cd5605ebaf27a1c5695a7a5d2aa5adcb0522d645fef77.exe
          "C:\Users\Admin\AppData\Local\Temp\4fc20c09ea7a0070dd0cd5605ebaf27a1c5695a7a5d2aa5adcb0522d645fef77.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2316
          • C:\Users\Admin\AppData\Local\35360ee2-204d-485c-8b3a-f25bde4ad037\build2.exe
            "C:\Users\Admin\AppData\Local\35360ee2-204d-485c-8b3a-f25bde4ad037\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:764
            • C:\Users\Admin\AppData\Local\35360ee2-204d-485c-8b3a-f25bde4ad037\build2.exe
              "C:\Users\Admin\AppData\Local\35360ee2-204d-485c-8b3a-f25bde4ad037\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:5036
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\35360ee2-204d-485c-8b3a-f25bde4ad037\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:2544
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:1820
          • C:\Users\Admin\AppData\Local\35360ee2-204d-485c-8b3a-f25bde4ad037\build3.exe
            "C:\Users\Admin\AppData\Local\35360ee2-204d-485c-8b3a-f25bde4ad037\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4600
            • 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:516
  • 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:2720
    • 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:2396

Network

        MITRE ATT&CK Enterprise v6

        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:\ProgramData\sqlite3.dll

          Filesize

          1.1MB

          MD5

          1f44d4d3087c2b202cf9c90ee9d04b0f

          SHA1

          106a3ebc9e39ab6ddb3ff987efb6527c956f192d

          SHA256

          4841020c8bd06b08fde6e44cbe2e2ab33439e1c8368e936ec5b00dc0584f7260

          SHA512

          b614c72a3c1ce681ebffa628e29aa50275cc80ca9267380960c5198ea4d0a3f2df6cfb7275491d220bad72f14fc94e6656501e9a061d102fb11e00cfda2beb45

        • 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

          2fb42da3a0e168378c8c922cdc934e0f

          SHA1

          7bd6d33ed542149ae7628665381331ed4ee325f2

          SHA256

          04e65249268569c0c58147b2266b3f2c40a2e2c93c377eb0f5cdd49a4dd887eb

          SHA512

          dba7734f972882b56f66589d5ca9dcdfa7ccff25d152ec0d33f41776da17c61f132606529575f5883e90bc3e8c268951683a877969a25bc7cb46f506207ba08c

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

          Filesize

          482B

          MD5

          50b824c19c1b6ea224b1c8a051699899

          SHA1

          a520e89b6da5635a1830d9b844c1715455db459b

          SHA256

          a354d310c31897ea7260e5ec2625087bd2bef990c1878d1f0bc6fdfd5345489a

          SHA512

          d14b98c02969e1ca339c4ca82e386fd5e8d84a540f33859a21b5cf23f1e9d89dd2a0d6d950e868d9a73c2f55f0f28e37ecaed9f19e8d795b5b0f6f7164679f5d

        • C:\Users\Admin\AppData\Local\35360ee2-204d-485c-8b3a-f25bde4ad037\build2.exe

          Filesize

          325KB

          MD5

          e4e90e1dda4b51d199d449fa936db902

          SHA1

          70de6b213f872ba782ba11cad5a5d1294ca9e741

          SHA256

          8ecc0426ea37a5c9e59d00b4fde1508175a950372ec3870965f1e527634b3419

          SHA512

          3958e1c40d69d5439b5e85bdb5765bb38ec5bba24f38a8aafb9a53c167ebaffb5c202441613af3f2d968c9c902de35036f67d87f7777efeb4c66869a7fc3c4ed

        • C:\Users\Admin\AppData\Local\35360ee2-204d-485c-8b3a-f25bde4ad037\build2.exe

          Filesize

          325KB

          MD5

          e4e90e1dda4b51d199d449fa936db902

          SHA1

          70de6b213f872ba782ba11cad5a5d1294ca9e741

          SHA256

          8ecc0426ea37a5c9e59d00b4fde1508175a950372ec3870965f1e527634b3419

          SHA512

          3958e1c40d69d5439b5e85bdb5765bb38ec5bba24f38a8aafb9a53c167ebaffb5c202441613af3f2d968c9c902de35036f67d87f7777efeb4c66869a7fc3c4ed

        • C:\Users\Admin\AppData\Local\35360ee2-204d-485c-8b3a-f25bde4ad037\build2.exe

          Filesize

          325KB

          MD5

          e4e90e1dda4b51d199d449fa936db902

          SHA1

          70de6b213f872ba782ba11cad5a5d1294ca9e741

          SHA256

          8ecc0426ea37a5c9e59d00b4fde1508175a950372ec3870965f1e527634b3419

          SHA512

          3958e1c40d69d5439b5e85bdb5765bb38ec5bba24f38a8aafb9a53c167ebaffb5c202441613af3f2d968c9c902de35036f67d87f7777efeb4c66869a7fc3c4ed

        • C:\Users\Admin\AppData\Local\35360ee2-204d-485c-8b3a-f25bde4ad037\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\35360ee2-204d-485c-8b3a-f25bde4ad037\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\971e0322-3e21-4dee-9889-b0440b968a90\4fc20c09ea7a0070dd0cd5605ebaf27a1c5695a7a5d2aa5adcb0522d645fef77.exe

          Filesize

          747KB

          MD5

          90d802d1c0180db512db1fba36c2eff7

          SHA1

          85b8f2fefb93b75e47238827d2ad3c6ec53beefc

          SHA256

          4fc20c09ea7a0070dd0cd5605ebaf27a1c5695a7a5d2aa5adcb0522d645fef77

          SHA512

          d7d6f0afc7676e4b2bc4bf296be7dfa9425a0d4ca8b9bd911c28ae8d7468664d13ba87f2d8b12c62ee28cfe3156771f34994be8e61ca592d1a5cbb620d9c5229

        • 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/764-162-0x00000000021F0000-0x0000000002234000-memory.dmp

          Filesize

          272KB

        • memory/764-161-0x00000000006A2000-0x00000000006CA000-memory.dmp

          Filesize

          160KB

        • memory/2292-145-0x00000000006F6000-0x0000000000788000-memory.dmp

          Filesize

          584KB

        • memory/2316-168-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2316-144-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2316-146-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2316-148-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3932-133-0x00000000023A0000-0x00000000024BB000-memory.dmp

          Filesize

          1.1MB

        • memory/3932-132-0x000000000090D000-0x000000000099F000-memory.dmp

          Filesize

          584KB

        • memory/5036-157-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/5036-163-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/5036-160-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/5036-159-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/5036-172-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/5036-177-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/5040-135-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/5040-147-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/5040-137-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/5040-136-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/5040-138-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB