Analysis

  • max time kernel
    144s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-03-2023 06:30

General

  • Target

    39cfafe63506cd4cb0d31a83ed38a31cf7042150e4d6d80a221a5a201c51dbfb.exe

  • Size

    759KB

  • MD5

    a530aeadc73110ff6feb6fe6a5fc6c5a

  • SHA1

    f864d4f4f3279a58f2123a3fb8ac68dd369cd293

  • SHA256

    39cfafe63506cd4cb0d31a83ed38a31cf7042150e4d6d80a221a5a201c51dbfb

  • SHA512

    5517dcad7917fafd8aaa4fb44b67415767361d77d6a4ae1ae7c568141e09cb84cdc4a935676cda4594a508ba990581a027f3a01b130212fedfb0af3b2c9bc8a0

  • SSDEEP

    12288:MSMpNPUmw3Kp/4b/W7Nv3gNRpzwqduPtJOlX0QbQ3t:d8PUNKpee5INEqgFJWX

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test2/get.php

Attributes
  • extension

    .jywd

  • offline_id

    MEMHlobHgXqvmTWaMsLcwGZhDOd00bblO1yevst1

  • 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-fkW8qLaCVQ 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: 0675JOsie

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
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Program crash 1 IoCs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39cfafe63506cd4cb0d31a83ed38a31cf7042150e4d6d80a221a5a201c51dbfb.exe
    "C:\Users\Admin\AppData\Local\Temp\39cfafe63506cd4cb0d31a83ed38a31cf7042150e4d6d80a221a5a201c51dbfb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2592
    • C:\Users\Admin\AppData\Local\Temp\39cfafe63506cd4cb0d31a83ed38a31cf7042150e4d6d80a221a5a201c51dbfb.exe
      "C:\Users\Admin\AppData\Local\Temp\39cfafe63506cd4cb0d31a83ed38a31cf7042150e4d6d80a221a5a201c51dbfb.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:808
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\b1f29ba0-ca1d-47c8-84ab-776d3da987a5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4484
      • C:\Users\Admin\AppData\Local\Temp\39cfafe63506cd4cb0d31a83ed38a31cf7042150e4d6d80a221a5a201c51dbfb.exe
        "C:\Users\Admin\AppData\Local\Temp\39cfafe63506cd4cb0d31a83ed38a31cf7042150e4d6d80a221a5a201c51dbfb.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3184
        • C:\Users\Admin\AppData\Local\Temp\39cfafe63506cd4cb0d31a83ed38a31cf7042150e4d6d80a221a5a201c51dbfb.exe
          "C:\Users\Admin\AppData\Local\Temp\39cfafe63506cd4cb0d31a83ed38a31cf7042150e4d6d80a221a5a201c51dbfb.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:5040
          • C:\Users\Admin\AppData\Local\cb982f73-1ecf-40c6-b059-3a3afa573c55\build2.exe
            "C:\Users\Admin\AppData\Local\cb982f73-1ecf-40c6-b059-3a3afa573c55\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2768
            • C:\Users\Admin\AppData\Local\cb982f73-1ecf-40c6-b059-3a3afa573c55\build2.exe
              "C:\Users\Admin\AppData\Local\cb982f73-1ecf-40c6-b059-3a3afa573c55\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:2452
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2452 -s 1944
                7⤵
                • Program crash
                PID:2156
          • C:\Users\Admin\AppData\Local\cb982f73-1ecf-40c6-b059-3a3afa573c55\build3.exe
            "C:\Users\Admin\AppData\Local\cb982f73-1ecf-40c6-b059-3a3afa573c55\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1980
            • 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:5004
  • 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:2136
    • 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:4384
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2452 -ip 2452
    1⤵
      PID:4700

    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:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

      Filesize

      2KB

      MD5

      e5b1cc0ae5af6a8277d75cff4af2c5e8

      SHA1

      4768fff3d4bbe02f89683b4a0e7b15b24b54eb9f

      SHA256

      d950c0d748aae641d71b11cd1c519b289917c23bee1a2b6bc5c496fd8e5d4655

      SHA512

      57a4737deeefac0124d73b52525993fecbbebd21a556ece87f8e79e845e07f037abb5e49f7458e8a010935c6691f18fbb913d77ecfb2ba902067788c483ec3d7

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

      Filesize

      1KB

      MD5

      3adac03b181d7980568dda0da0efc9de

      SHA1

      a283c4c9bd26a65b8240d21708e57f5946778341

      SHA256

      24c4973ced938b77d9670ac79eb76cd52411b17ab59ec78ba14c1b433f342933

      SHA512

      6fbd2a32fc18606628ea56311764cd879a1196405dddd4d269ad6163b2ffdcf916786f1c0328f27ec089be5cb9b4ecb3542363f4dfb3df1c1b91a0e038b67241

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

      Filesize

      488B

      MD5

      0a961b8b3f693867ba07323572cadfac

      SHA1

      4c80b976be32bd89c3317565464ae0fdb4c8befd

      SHA256

      5c3c4f375278472323b212484dffe0e6b1a221ca98764a22bd5f286980225719

      SHA512

      368823f4804d10ca1fb3d68e4439e4d47c7114af455bd2b159aa3d267293cb25bdc0720619da8fae7a0e899fe479347a28abc43105a73a7e87aba7082d25cd63

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

      Filesize

      482B

      MD5

      fe3df50c709a390a3457a1c7b15e4179

      SHA1

      f79d4509e9632becfaee09abe3ae3138bd79e505

      SHA256

      8423933ebff619e081fdf988af733b57ceabb1a6d392dc3a40def043695c38cf

      SHA512

      5e39d3824cdfd790c53da8ecd45ebc7de08ee330628fce466d25f874977912c415e8c80675bd2658f83923c4f1a7dabe5febca815fa67961ef35d69baaec9440

    • C:\Users\Admin\AppData\Local\b1f29ba0-ca1d-47c8-84ab-776d3da987a5\39cfafe63506cd4cb0d31a83ed38a31cf7042150e4d6d80a221a5a201c51dbfb.exe

      Filesize

      759KB

      MD5

      a530aeadc73110ff6feb6fe6a5fc6c5a

      SHA1

      f864d4f4f3279a58f2123a3fb8ac68dd369cd293

      SHA256

      39cfafe63506cd4cb0d31a83ed38a31cf7042150e4d6d80a221a5a201c51dbfb

      SHA512

      5517dcad7917fafd8aaa4fb44b67415767361d77d6a4ae1ae7c568141e09cb84cdc4a935676cda4594a508ba990581a027f3a01b130212fedfb0af3b2c9bc8a0

    • C:\Users\Admin\AppData\Local\cb982f73-1ecf-40c6-b059-3a3afa573c55\build2.exe

      Filesize

      299KB

      MD5

      6b343cd7dea3ae28d0819bc55a2f86fe

      SHA1

      cedd49849a5dd678d0a55da607e9b28a9680073c

      SHA256

      4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

      SHA512

      7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

    • C:\Users\Admin\AppData\Local\cb982f73-1ecf-40c6-b059-3a3afa573c55\build2.exe

      Filesize

      299KB

      MD5

      6b343cd7dea3ae28d0819bc55a2f86fe

      SHA1

      cedd49849a5dd678d0a55da607e9b28a9680073c

      SHA256

      4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

      SHA512

      7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

    • C:\Users\Admin\AppData\Local\cb982f73-1ecf-40c6-b059-3a3afa573c55\build2.exe

      Filesize

      299KB

      MD5

      6b343cd7dea3ae28d0819bc55a2f86fe

      SHA1

      cedd49849a5dd678d0a55da607e9b28a9680073c

      SHA256

      4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

      SHA512

      7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

    • C:\Users\Admin\AppData\Local\cb982f73-1ecf-40c6-b059-3a3afa573c55\build2.exe

      Filesize

      299KB

      MD5

      6b343cd7dea3ae28d0819bc55a2f86fe

      SHA1

      cedd49849a5dd678d0a55da607e9b28a9680073c

      SHA256

      4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

      SHA512

      7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

    • C:\Users\Admin\AppData\Local\cb982f73-1ecf-40c6-b059-3a3afa573c55\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\cb982f73-1ecf-40c6-b059-3a3afa573c55\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\cb982f73-1ecf-40c6-b059-3a3afa573c55\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

    • memory/808-135-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/808-148-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/808-138-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/808-137-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/808-134-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2452-181-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/2452-207-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/2452-279-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/2452-277-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/2452-276-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/2452-182-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/2452-183-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/2452-178-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/2592-136-0x0000000002570000-0x000000000268B000-memory.dmp

      Filesize

      1.1MB

    • memory/2768-180-0x00000000020D0000-0x0000000002127000-memory.dmp

      Filesize

      348KB

    • memory/5040-193-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5040-163-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5040-159-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5040-158-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5040-151-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5040-166-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5040-152-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5040-153-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5040-278-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5040-165-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB