Analysis

  • max time kernel
    54s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25/09/2022, 19:51

General

  • Target

    file.exe

  • Size

    721KB

  • MD5

    0c3ca17de30d2e37d0910a1b1eceb179

  • SHA1

    0564dd7295e9c0df26af52e8865082113901fd43

  • SHA256

    24fd32811567e6c0e30b1f2b5efbe8137e3f12f22c23aede9d10b1e365119a13

  • SHA512

    fb610af5a70be1bdf4fe99c9915595f920b8d676764701a709ec830fb4342e3bcd3a50ecf79e9bd1ae5f0fccc8927b4e5c32f749306927c194d8f08db8bdeb9d

  • SSDEEP

    12288:i7YkeWXzwUB0jK3ZlcGMGVVAc4d2IJILbfmOgvKCJ5YHsOrSsrw0DLYqu7KevkA:i7Yk9s5+337xAP2Ie2OgvJS1esrTwquY

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

54.6

Botnet

517

C2

https://t.me/huobiinside

https://mas.to/@kyriazhs1975

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
  • 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
  • Modifies system certificate store 2 TTPs 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 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:1100
    • C:\Users\Admin\AppData\Local\Temp\file.exe
      "C:\Users\Admin\AppData\Local\Temp\file.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1896
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\a324b201-e3cb-45e1-a032-694e1210dec1" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1952
      • 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:856
        • C:\Users\Admin\AppData\Local\Temp\file.exe
          "C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:632
          • C:\Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build2.exe
            "C:\Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2040
            • C:\Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build2.exe
              "C:\Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Modifies system certificate store
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:1956
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" ƒ/c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build2.exe" & del C:\PrograData\*.dll & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:2044
                • C:\Windows\SysWOW64\taskkill.exe
                  taskkill /im build2.exe /f
                  8⤵
                  • Kills process with taskkill
                  • Suspicious use of AdjustPrivilegeToken
                  PID:960
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:1496
          • C:\Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build3.exe
            "C:\Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1672
            • 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:1144
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {72903F52-4EA3-47D8-AF37-13D809C7FA55} S-1-5-21-2292972927-2705560509-2768824231-1000:GRXNNIIE\Admin:Interactive:[1]
    1⤵
      PID:1744
      • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
        2⤵
        • Executes dropped EXE
        PID:1616
        • 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:1612

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • 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\94308059B57B3142E455B38A6EB92015

      Filesize

      60KB

      MD5

      6c6a24456559f305308cb1fb6c5486b3

      SHA1

      3273ac27d78572f16c3316732b9756ebc22cb6ed

      SHA256

      efc3c579bd619ceab040c4b8c1b821b2d82c64fddd9e80a00ec0d7f6577ed973

      SHA512

      587d4a9175a6aa82cd8bb1c11ca6508f95cd218f76ac322ddbd1bc7146a0e25f8937ee426a6fb0fb0bb045cedb24d8c8a9edfe9f654112f293d8701220f726b4

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

      Filesize

      1KB

      MD5

      0d870ca424457579d4bd345ac1ec6c3c

      SHA1

      fc3d8924e13b4fc5eca7cabd4967eea3d4db1690

      SHA256

      cf9df8d62ec78ca20a50633047af6c913dc2d10f15823795e8d86042c7b05ed0

      SHA512

      a1e731ae03b1a2259f8e1afc86058aabb3b8ce3b0141f08ea18b6c7003c55aeb135d40bba38ebf1f76174eb1ad758fbec10841dee1ed704fb0285e36b2f7d66b

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

      Filesize

      488B

      MD5

      8a23c882b702ab1ea587b17061b45aff

      SHA1

      80293bcfd2c855cb5e6fdfec347edb601bcaef40

      SHA256

      a72df3b397c9b6da16aee84722b8510ac635e5f15d7944b92a18391d27a89bbc

      SHA512

      170ff029dc8e693f24dc37815bf3581dd7b157920f7305c569d518ec2dc790916069128f7654a07ee01efc38df1e86f1df7e39e0067a51098e786bc2ea7ec1d6

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

      Filesize

      344B

      MD5

      a3e141fd4f3826b2ec7eba051a6dcf32

      SHA1

      cf226ce37b54b1d2eb542da786542eb6922cb180

      SHA256

      748378b3dd0d36b4e3c7534be137336dc0d7449b1e9e9d8828297d007cbab2c1

      SHA512

      7a3ad7c0ab7c32dc0507144316ee30eb025dc962fc82e49d14d00c763cc31a5fc69b85c54c46be9e03935cd3846af9cdc27673694c6a63841a116b8e03896e55

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

      Filesize

      482B

      MD5

      070e2f39b50c69ba3beac22c79bd6ae4

      SHA1

      7d57d79eb8ec57b6d366b245659f6e0a3efaedd9

      SHA256

      b3e75eb722cd3f08bde5a390b01f1129787ee8c51a43418e89fb15cee9a7e2e6

      SHA512

      c5103f4ef4f4e8c86d6091a9edd666f50182ff22143512c32cd5961d96a4d7ddd1e263be74bd4f829725576aecdf9fdb2c9ab8bb45320425b39a9acff63ca3f8

    • C:\Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build2.exe

      Filesize

      246KB

      MD5

      4e08ecaa075b90f30327bf200d23130b

      SHA1

      f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2

      SHA256

      6c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47

      SHA512

      e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7

    • C:\Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build2.exe

      Filesize

      246KB

      MD5

      4e08ecaa075b90f30327bf200d23130b

      SHA1

      f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2

      SHA256

      6c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47

      SHA512

      e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7

    • C:\Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build2.exe

      Filesize

      246KB

      MD5

      4e08ecaa075b90f30327bf200d23130b

      SHA1

      f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2

      SHA256

      6c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47

      SHA512

      e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7

    • C:\Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\a324b201-e3cb-45e1-a032-694e1210dec1\file.exe

      Filesize

      721KB

      MD5

      0c3ca17de30d2e37d0910a1b1eceb179

      SHA1

      0564dd7295e9c0df26af52e8865082113901fd43

      SHA256

      24fd32811567e6c0e30b1f2b5efbe8137e3f12f22c23aede9d10b1e365119a13

      SHA512

      fb610af5a70be1bdf4fe99c9915595f920b8d676764701a709ec830fb4342e3bcd3a50ecf79e9bd1ae5f0fccc8927b4e5c32f749306927c194d8f08db8bdeb9d

    • 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\43ce612d-d4ce-412d-a728-9fd298d8abae\build2.exe

      Filesize

      246KB

      MD5

      4e08ecaa075b90f30327bf200d23130b

      SHA1

      f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2

      SHA256

      6c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47

      SHA512

      e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7

    • \Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build2.exe

      Filesize

      246KB

      MD5

      4e08ecaa075b90f30327bf200d23130b

      SHA1

      f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2

      SHA256

      6c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47

      SHA512

      e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7

    • \Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • \Users\Admin\AppData\Local\43ce612d-d4ce-412d-a728-9fd298d8abae\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • memory/632-126-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/632-80-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/632-73-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/856-70-0x0000000000320000-0x00000000003B2000-memory.dmp

      Filesize

      584KB

    • memory/856-67-0x0000000000320000-0x00000000003B2000-memory.dmp

      Filesize

      584KB

    • memory/1100-58-0x0000000000220000-0x00000000002B2000-memory.dmp

      Filesize

      584KB

    • memory/1100-59-0x0000000001F50000-0x000000000206B000-memory.dmp

      Filesize

      1.1MB

    • memory/1100-54-0x0000000000220000-0x00000000002B2000-memory.dmp

      Filesize

      584KB

    • memory/1896-62-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1896-55-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1896-60-0x00000000763F1000-0x00000000763F3000-memory.dmp

      Filesize

      8KB

    • memory/1896-66-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1896-61-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1956-102-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/1956-101-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/1956-123-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/1956-86-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/1956-93-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/2040-89-0x000000000069B000-0x00000000006C5000-memory.dmp

      Filesize

      168KB

    • memory/2040-91-0x0000000000220000-0x0000000000267000-memory.dmp

      Filesize

      284KB