Analysis

  • max time kernel
    144s
  • max time network
    125s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    24/03/2023, 06:03

General

  • Target

    865a351344217f684052dc01a81ba429bdbec59d939cc8aa76c154b91e9f75ff.exe

  • Size

    755KB

  • MD5

    347519ad6530f3805f94841177d42271

  • SHA1

    75ed0d67e6821ab99682b63d31beb74ba01fe23e

  • SHA256

    865a351344217f684052dc01a81ba429bdbec59d939cc8aa76c154b91e9f75ff

  • SHA512

    64a2f6c27ffe7db82c81d4c807545ae8e2372e8fd92420eb546295fb89e50b4c4493d2a64088a6bcb8e4cb41a190c007691c6401d46906b73b4de47a35dfa1d6

  • SSDEEP

    12288:CL8rZ5fUyTBf9BImNnuqcG3HlwJQ+u43CXFG9e90P:CGVUeBTTRmalcV3CXFGT

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/raud/get.php

Attributes
  • extension

    .tyos

  • offline_id

    Yao2o6f5vNghOpgVBhEIA8O96SC5vLcgITgaRMt1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://zexeq.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-f8UEvx4T0A 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: 0673IsjO

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.1

Botnet

00d92484c9b27bc8482a2cc94cacc508

C2

https://steamcommunity.com/profiles/76561199472266392

https://t.me/tabootalks

http://135.181.26.183:80

Attributes
  • profile_id_v2

    00d92484c9b27bc8482a2cc94cacc508

  • user_agent

    Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79

Signatures

  • Detected Djvu ransomware 16 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 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
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\865a351344217f684052dc01a81ba429bdbec59d939cc8aa76c154b91e9f75ff.exe
    "C:\Users\Admin\AppData\Local\Temp\865a351344217f684052dc01a81ba429bdbec59d939cc8aa76c154b91e9f75ff.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3944
    • C:\Users\Admin\AppData\Local\Temp\865a351344217f684052dc01a81ba429bdbec59d939cc8aa76c154b91e9f75ff.exe
      "C:\Users\Admin\AppData\Local\Temp\865a351344217f684052dc01a81ba429bdbec59d939cc8aa76c154b91e9f75ff.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3884
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\86744f65-5778-4b45-8942-527e1d7423b1" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4740
      • C:\Users\Admin\AppData\Local\Temp\865a351344217f684052dc01a81ba429bdbec59d939cc8aa76c154b91e9f75ff.exe
        "C:\Users\Admin\AppData\Local\Temp\865a351344217f684052dc01a81ba429bdbec59d939cc8aa76c154b91e9f75ff.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4788
        • C:\Users\Admin\AppData\Local\Temp\865a351344217f684052dc01a81ba429bdbec59d939cc8aa76c154b91e9f75ff.exe
          "C:\Users\Admin\AppData\Local\Temp\865a351344217f684052dc01a81ba429bdbec59d939cc8aa76c154b91e9f75ff.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3540
          • C:\Users\Admin\AppData\Local\d4b50a6b-cedf-4ecc-b3a9-c80e025d2c12\build2.exe
            "C:\Users\Admin\AppData\Local\d4b50a6b-cedf-4ecc-b3a9-c80e025d2c12\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4956
            • C:\Users\Admin\AppData\Local\d4b50a6b-cedf-4ecc-b3a9-c80e025d2c12\build2.exe
              "C:\Users\Admin\AppData\Local\d4b50a6b-cedf-4ecc-b3a9-c80e025d2c12\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4396
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\d4b50a6b-cedf-4ecc-b3a9-c80e025d2c12\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:68
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:596
          • C:\Users\Admin\AppData\Local\d4b50a6b-cedf-4ecc-b3a9-c80e025d2c12\build3.exe
            "C:\Users\Admin\AppData\Local\d4b50a6b-cedf-4ecc-b3a9-c80e025d2c12\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1492
            • 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:4348
  • 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:2104
    • 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:3932

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

          ebf38835fd83d603ed2939112fe923d2

          SHA1

          27426896cf1aac5c41eff28eae202b44d92345f9

          SHA256

          1b703c5ef0e6349372108f3a7a2033a365e50a17e8d7cd278f93e4444f232b71

          SHA512

          7d4d060f679ba65f601e5e7d9bee51bec4bd801bb3440a5c1f856cfa643ccca152a670e38d1e458d419e5f41ee422d5f37029035e58c2e8e9ec9e0339c680a0d

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

          Filesize

          1KB

          MD5

          e23d8cd61c2e75283867a91ce42aa1dc

          SHA1

          a86f54bb4f00cf0fcd3efc3951d54e168d25c7f4

          SHA256

          0a8b65baa91fb423458dd64e067a6009cd4ce9a93c65ac4b448025403ab0ea9c

          SHA512

          89483da80407e373d6d0f18b4ddd3976a5cd8e590b398de51e881623f54e4c146ec57def18c26c8f7ca5e7ed00b51b9a94d14ad38d2d716b416507b41144c5f4

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

          Filesize

          488B

          MD5

          6f920e019074e7ac8329200bfb57168a

          SHA1

          992aa48ea1e9cf19784e724e942f6de9178c560d

          SHA256

          2921392642a8b445c4110cc2194e96e8e8330044b2feebce37e6ad35ae652c0b

          SHA512

          2381ea9a2da74eaca1a25b914db7af1fcfb0bb4149cff9ab06e4e97e17dbfe38c28705b5649a08d31dfc5a236c1e0307e4dc8c727855fe8c4bf531c2dcdfd848

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

          Filesize

          482B

          MD5

          2f618fedd8bd7fa3274094847db34677

          SHA1

          badd5b701f99d61585f636dad83788403eb4b82f

          SHA256

          af780afee0bcb0c7f9f727a04285e996b76a55669d0a59fabf0d28956fc17ebd

          SHA512

          437ff41a106e409cfe612884e9e720897cff06ed0f56c3fa1ffed7b67db505fdd824fcb8d6fd41fe12aad54c5df79ac5d676d7480c224fde3687c5bc79e6dde7

        • C:\Users\Admin\AppData\Local\86744f65-5778-4b45-8942-527e1d7423b1\865a351344217f684052dc01a81ba429bdbec59d939cc8aa76c154b91e9f75ff.exe

          Filesize

          755KB

          MD5

          347519ad6530f3805f94841177d42271

          SHA1

          75ed0d67e6821ab99682b63d31beb74ba01fe23e

          SHA256

          865a351344217f684052dc01a81ba429bdbec59d939cc8aa76c154b91e9f75ff

          SHA512

          64a2f6c27ffe7db82c81d4c807545ae8e2372e8fd92420eb546295fb89e50b4c4493d2a64088a6bcb8e4cb41a190c007691c6401d46906b73b4de47a35dfa1d6

        • C:\Users\Admin\AppData\Local\d4b50a6b-cedf-4ecc-b3a9-c80e025d2c12\build2.exe

          Filesize

          299KB

          MD5

          6b343cd7dea3ae28d0819bc55a2f86fe

          SHA1

          cedd49849a5dd678d0a55da607e9b28a9680073c

          SHA256

          4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

          SHA512

          7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

        • C:\Users\Admin\AppData\Local\d4b50a6b-cedf-4ecc-b3a9-c80e025d2c12\build2.exe

          Filesize

          299KB

          MD5

          6b343cd7dea3ae28d0819bc55a2f86fe

          SHA1

          cedd49849a5dd678d0a55da607e9b28a9680073c

          SHA256

          4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

          SHA512

          7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

        • C:\Users\Admin\AppData\Local\d4b50a6b-cedf-4ecc-b3a9-c80e025d2c12\build2.exe

          Filesize

          299KB

          MD5

          6b343cd7dea3ae28d0819bc55a2f86fe

          SHA1

          cedd49849a5dd678d0a55da607e9b28a9680073c

          SHA256

          4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

          SHA512

          7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

        • C:\Users\Admin\AppData\Local\d4b50a6b-cedf-4ecc-b3a9-c80e025d2c12\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\d4b50a6b-cedf-4ecc-b3a9-c80e025d2c12\build3.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

        • 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

        • memory/3540-147-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3540-169-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3540-154-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3540-155-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3540-156-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3540-140-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3540-148-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3540-141-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3540-146-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3540-152-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3884-122-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3884-124-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3884-121-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3884-136-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3884-125-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3944-123-0x00000000049C0000-0x0000000004ADB000-memory.dmp

          Filesize

          1.1MB

        • memory/4396-232-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/4396-190-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/4396-179-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/4396-177-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/4396-174-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/4396-176-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/4396-248-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/4396-250-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/4396-254-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/4956-178-0x0000000000700000-0x0000000000757000-memory.dmp

          Filesize

          348KB