Analysis

  • max time kernel
    146s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/03/2023, 03:25

General

  • Target

    589d7c684549f1dbdefc53f181ae922a2544eddac8a4bde2c1c24f7e83d7575b.exe

  • Size

    749KB

  • MD5

    8801b6e7736009b6f541b810251578e0

  • SHA1

    9e953e747ac0872e08fa251cd0e1b55098bdf24b

  • SHA256

    589d7c684549f1dbdefc53f181ae922a2544eddac8a4bde2c1c24f7e83d7575b

  • SHA512

    dec8f010d5c57b20c5a98f8324999e88e6df2fe00f0a0b02eab6142b1907994918f9a8ab5b026c5d213c0ed84e4b68d33758ba7b1970222b5572c89ce3860e0c

  • SSDEEP

    12288:gbC5QRpDvNvXmubwh5Jixn1djrVheRWtGxwWqwUIzVFqNk/UF091:gbzRxvFXTk5k1dFURhqwUOSWv91

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\589d7c684549f1dbdefc53f181ae922a2544eddac8a4bde2c1c24f7e83d7575b.exe
    "C:\Users\Admin\AppData\Local\Temp\589d7c684549f1dbdefc53f181ae922a2544eddac8a4bde2c1c24f7e83d7575b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4500
    • C:\Users\Admin\AppData\Local\Temp\589d7c684549f1dbdefc53f181ae922a2544eddac8a4bde2c1c24f7e83d7575b.exe
      "C:\Users\Admin\AppData\Local\Temp\589d7c684549f1dbdefc53f181ae922a2544eddac8a4bde2c1c24f7e83d7575b.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1392
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\47f17796-d956-4426-b068-b3678a182512" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2148
      • C:\Users\Admin\AppData\Local\Temp\589d7c684549f1dbdefc53f181ae922a2544eddac8a4bde2c1c24f7e83d7575b.exe
        "C:\Users\Admin\AppData\Local\Temp\589d7c684549f1dbdefc53f181ae922a2544eddac8a4bde2c1c24f7e83d7575b.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1704
        • C:\Users\Admin\AppData\Local\Temp\589d7c684549f1dbdefc53f181ae922a2544eddac8a4bde2c1c24f7e83d7575b.exe
          "C:\Users\Admin\AppData\Local\Temp\589d7c684549f1dbdefc53f181ae922a2544eddac8a4bde2c1c24f7e83d7575b.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2576
          • C:\Users\Admin\AppData\Local\6f3f8966-e132-413e-bc68-f5a151410660\build2.exe
            "C:\Users\Admin\AppData\Local\6f3f8966-e132-413e-bc68-f5a151410660\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1084
            • C:\Users\Admin\AppData\Local\6f3f8966-e132-413e-bc68-f5a151410660\build2.exe
              "C:\Users\Admin\AppData\Local\6f3f8966-e132-413e-bc68-f5a151410660\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:732
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 732 -s 1544
                7⤵
                • Program crash
                PID:3540
          • C:\Users\Admin\AppData\Local\6f3f8966-e132-413e-bc68-f5a151410660\build3.exe
            "C:\Users\Admin\AppData\Local\6f3f8966-e132-413e-bc68-f5a151410660\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4056
            • 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:4948
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 732 -ip 732
    1⤵
      PID:2848
    • 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: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"
        2⤵
        • Creates scheduled task(s)
        PID:2720

    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

            8644c4dcfc2ef6a7ca975a336cc62e68

            SHA1

            0fed818854ad7f974c504d26dbc9eb338d4b2d33

            SHA256

            acf90d27e7ef0c26efcd19d2e3112e7a3d20781e74d110f778d021d44947bd80

            SHA512

            071fe797775e874a6d5a7064a64a6a875027157e7140d570a1fc991cde22a03c64f511eb808590b5a9cf4b3e099d51aafd11f29b01731d28840b76fe105b953b

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

            Filesize

            482B

            MD5

            90f3cd533e36af6b4af9ebc724573e06

            SHA1

            ef783959f7e8586eb10d0441425a36f4567df937

            SHA256

            bb49e1bb49c86ea4b79f9aba0d802d8f12353d29309178b6c0457d7c3ba037e7

            SHA512

            3239564df02db660f07dce3bcdd2154e3b14b953a87dbcaf7d8900a9773714680496e43f4a2a4a074aa5064a830a6b781607b7396bd3415d052eca7ab705df32

          • C:\Users\Admin\AppData\Local\47f17796-d956-4426-b068-b3678a182512\589d7c684549f1dbdefc53f181ae922a2544eddac8a4bde2c1c24f7e83d7575b.exe

            Filesize

            749KB

            MD5

            8801b6e7736009b6f541b810251578e0

            SHA1

            9e953e747ac0872e08fa251cd0e1b55098bdf24b

            SHA256

            589d7c684549f1dbdefc53f181ae922a2544eddac8a4bde2c1c24f7e83d7575b

            SHA512

            dec8f010d5c57b20c5a98f8324999e88e6df2fe00f0a0b02eab6142b1907994918f9a8ab5b026c5d213c0ed84e4b68d33758ba7b1970222b5572c89ce3860e0c

          • C:\Users\Admin\AppData\Local\6f3f8966-e132-413e-bc68-f5a151410660\build2.exe

            Filesize

            299KB

            MD5

            6b343cd7dea3ae28d0819bc55a2f86fe

            SHA1

            cedd49849a5dd678d0a55da607e9b28a9680073c

            SHA256

            4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

            SHA512

            7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

          • C:\Users\Admin\AppData\Local\6f3f8966-e132-413e-bc68-f5a151410660\build2.exe

            Filesize

            299KB

            MD5

            6b343cd7dea3ae28d0819bc55a2f86fe

            SHA1

            cedd49849a5dd678d0a55da607e9b28a9680073c

            SHA256

            4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

            SHA512

            7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

          • C:\Users\Admin\AppData\Local\6f3f8966-e132-413e-bc68-f5a151410660\build2.exe

            Filesize

            299KB

            MD5

            6b343cd7dea3ae28d0819bc55a2f86fe

            SHA1

            cedd49849a5dd678d0a55da607e9b28a9680073c

            SHA256

            4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

            SHA512

            7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

          • C:\Users\Admin\AppData\Local\6f3f8966-e132-413e-bc68-f5a151410660\build2.exe

            Filesize

            299KB

            MD5

            6b343cd7dea3ae28d0819bc55a2f86fe

            SHA1

            cedd49849a5dd678d0a55da607e9b28a9680073c

            SHA256

            4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

            SHA512

            7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

          • C:\Users\Admin\AppData\Local\6f3f8966-e132-413e-bc68-f5a151410660\build3.exe

            Filesize

            9KB

            MD5

            9ead10c08e72ae41921191f8db39bc16

            SHA1

            abe3bce01cd34afc88e2c838173f8c2bd0090ae1

            SHA256

            8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

            SHA512

            aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

          • C:\Users\Admin\AppData\Local\6f3f8966-e132-413e-bc68-f5a151410660\build3.exe

            Filesize

            9KB

            MD5

            9ead10c08e72ae41921191f8db39bc16

            SHA1

            abe3bce01cd34afc88e2c838173f8c2bd0090ae1

            SHA256

            8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

            SHA512

            aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

          • C:\Users\Admin\AppData\Local\6f3f8966-e132-413e-bc68-f5a151410660\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/732-276-0x0000000000400000-0x000000000046C000-memory.dmp

            Filesize

            432KB

          • memory/732-274-0x0000000000400000-0x000000000046C000-memory.dmp

            Filesize

            432KB

          • memory/732-206-0x0000000061E00000-0x0000000061EF3000-memory.dmp

            Filesize

            972KB

          • memory/732-277-0x0000000000400000-0x000000000046C000-memory.dmp

            Filesize

            432KB

          • memory/732-181-0x0000000000400000-0x000000000046C000-memory.dmp

            Filesize

            432KB

          • memory/732-195-0x0000000000400000-0x000000000046C000-memory.dmp

            Filesize

            432KB

          • memory/732-178-0x0000000000400000-0x000000000046C000-memory.dmp

            Filesize

            432KB

          • memory/732-180-0x0000000000400000-0x000000000046C000-memory.dmp

            Filesize

            432KB

          • memory/1084-182-0x0000000000640000-0x0000000000697000-memory.dmp

            Filesize

            348KB

          • memory/1392-134-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/1392-137-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/1392-135-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/1392-138-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/1392-147-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/2576-165-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/2576-192-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/2576-166-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/2576-152-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/2576-163-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/2576-275-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/2576-159-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/2576-158-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/2576-157-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/2576-151-0x0000000000400000-0x0000000000537000-memory.dmp

            Filesize

            1.2MB

          • memory/4500-136-0x0000000002560000-0x000000000267B000-memory.dmp

            Filesize

            1.1MB