Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/05/2023, 18:41

General

  • Target

    d95b6bb69af6a89050ca26d85efe984d51633c54254e587d22d6c8188f9ff875.exe

  • Size

    853KB

  • MD5

    f90bbc1b6478e52673222f2166207449

  • SHA1

    b620a3c45f3d599e09e3f03bfb0a7afa0fcee4b2

  • SHA256

    d95b6bb69af6a89050ca26d85efe984d51633c54254e587d22d6c8188f9ff875

  • SHA512

    3d88d0d8ef0e3ad5633ea654f7ceac3ee4b4851445b57472573931285917783a353572e6eff86252e0a49f8423d3af62b98d3d3483ee17d03f846ce7e2111324

  • SSDEEP

    24576:VsHkQ7z3+AJwDgmtdkby6XmKRC0EUqmrI:VsEijQgmq/XmH19

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test1/get.php

Attributes
  • extension

    .fofd

  • offline_id

    JFtdCcJoPS9sBORc6lnQV44QG764HrKKynxqdVt1

  • payload_url

    http://colisumy.com/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-pSlL2pKijh 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: 0694JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.7

Botnet

31c7719b5ee962fbde376b75e771360d

C2

https://steamcommunity.com/profiles/76561199501059503

https://t.me/mastersbots

Attributes
  • profile_id_v2

    31c7719b5ee962fbde376b75e771360d

  • user_agent

    Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/112.0

Signatures

  • Detected Djvu ransomware 18 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 4 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).

  • 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.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d95b6bb69af6a89050ca26d85efe984d51633c54254e587d22d6c8188f9ff875.exe
    "C:\Users\Admin\AppData\Local\Temp\d95b6bb69af6a89050ca26d85efe984d51633c54254e587d22d6c8188f9ff875.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4420
    • C:\Users\Admin\AppData\Local\Temp\d95b6bb69af6a89050ca26d85efe984d51633c54254e587d22d6c8188f9ff875.exe
      "C:\Users\Admin\AppData\Local\Temp\d95b6bb69af6a89050ca26d85efe984d51633c54254e587d22d6c8188f9ff875.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2504
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\74ed2b95-97fc-4e4f-9911-74d52b45cb03" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3064
      • C:\Users\Admin\AppData\Local\Temp\d95b6bb69af6a89050ca26d85efe984d51633c54254e587d22d6c8188f9ff875.exe
        "C:\Users\Admin\AppData\Local\Temp\d95b6bb69af6a89050ca26d85efe984d51633c54254e587d22d6c8188f9ff875.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1780
        • C:\Users\Admin\AppData\Local\Temp\d95b6bb69af6a89050ca26d85efe984d51633c54254e587d22d6c8188f9ff875.exe
          "C:\Users\Admin\AppData\Local\Temp\d95b6bb69af6a89050ca26d85efe984d51633c54254e587d22d6c8188f9ff875.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2400
          • C:\Users\Admin\AppData\Local\8f79e924-cbf9-49e8-a7cb-a4d21c3999a9\build2.exe
            "C:\Users\Admin\AppData\Local\8f79e924-cbf9-49e8-a7cb-a4d21c3999a9\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3312
            • C:\Users\Admin\AppData\Local\8f79e924-cbf9-49e8-a7cb-a4d21c3999a9\build2.exe
              "C:\Users\Admin\AppData\Local\8f79e924-cbf9-49e8-a7cb-a4d21c3999a9\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:5088
          • C:\Users\Admin\AppData\Local\8f79e924-cbf9-49e8-a7cb-a4d21c3999a9\build3.exe
            "C:\Users\Admin\AppData\Local\8f79e924-cbf9-49e8-a7cb-a4d21c3999a9\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1608
            • 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:4208
  • 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:2000
    • 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:4012

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

          36b32f71d28d108f03339dd73feefb0c

          SHA1

          3d6bc9812acf93e334a76d12c96e885b30d34ed5

          SHA256

          3b8912b841a445d296d076cc0501f5aa1e0fcc2bb83536d852bad743bd2034f7

          SHA512

          ff58a120655a2a79646faaf82c34d9aa39baa9a870af36867041bd82f24f666457616875bbb3356f12cfbfbd3cd8c64a8dbd70f55557c85a890f3b06d0e671da

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

          Filesize

          1KB

          MD5

          5145226ee965ec6c7814292caa016376

          SHA1

          599b6fa914c11bf8527397d65084c2de42aff73a

          SHA256

          5ee4ed22271e4b9da8d765374cd65b5015abc548748c746dbdddf6fdf680db5e

          SHA512

          f23363359d73e416b0c335e7f91128874242c6c98926d1e4d084173e2b94ba58844dec98d781a2d4f3c82420b3522f77bdceb613109a9c798330769080cdfc2d

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

          Filesize

          488B

          MD5

          453faa85cc200a3f2005cadb0a160f28

          SHA1

          f92647112af81b5942652c656600d307c15caf75

          SHA256

          375c9b063976df606959a0fcf08966b660eac91e39a6150f15985dbd13d11794

          SHA512

          2b2d2faa3b8a34149b0e809bba283a47da3bbef056e468b31f287c3aa2ff4ec47c6514b1488a4e3ce16e5d6d894981e82c7587f146b1c72889048a3d0cfd1f2e

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

          Filesize

          482B

          MD5

          585794a3c7a05b77b2d123103e7af2e2

          SHA1

          15bc8defb2482d10534fd19854dd3885b81219b1

          SHA256

          8486f79fc0c074387f52b3434af888881cfc9b51be864255495c788ae198b16f

          SHA512

          782ae88f6a89cd7f38a330794eb0a7396a90db33001efe02a74a3a0c4418a68c368c40b283f8801d69384662cf101ecdc74c14b3cdf88a404539b4b818a6d657

        • C:\Users\Admin\AppData\Local\74ed2b95-97fc-4e4f-9911-74d52b45cb03\d95b6bb69af6a89050ca26d85efe984d51633c54254e587d22d6c8188f9ff875.exe

          Filesize

          853KB

          MD5

          f90bbc1b6478e52673222f2166207449

          SHA1

          b620a3c45f3d599e09e3f03bfb0a7afa0fcee4b2

          SHA256

          d95b6bb69af6a89050ca26d85efe984d51633c54254e587d22d6c8188f9ff875

          SHA512

          3d88d0d8ef0e3ad5633ea654f7ceac3ee4b4851445b57472573931285917783a353572e6eff86252e0a49f8423d3af62b98d3d3483ee17d03f846ce7e2111324

        • C:\Users\Admin\AppData\Local\8f79e924-cbf9-49e8-a7cb-a4d21c3999a9\build2.exe

          Filesize

          406KB

          MD5

          a5293cb8841eb96b8a6618f1e11cb730

          SHA1

          db640ebdfc3b98fe7a8223a44f4e997fa28cacc0

          SHA256

          810be76ae3ecc5ab7f019f91979ac9ebf76ed220a7b42c2254a21ec660f8289f

          SHA512

          b5cc44cc78250327cb23a45a3144c1c1ddbf89593f4946ae2f38c82c00a4d7057af0c5a8717572d4663967b072b302753f1751549eb758e9a520cf978ec187a6

        • C:\Users\Admin\AppData\Local\8f79e924-cbf9-49e8-a7cb-a4d21c3999a9\build2.exe

          Filesize

          406KB

          MD5

          a5293cb8841eb96b8a6618f1e11cb730

          SHA1

          db640ebdfc3b98fe7a8223a44f4e997fa28cacc0

          SHA256

          810be76ae3ecc5ab7f019f91979ac9ebf76ed220a7b42c2254a21ec660f8289f

          SHA512

          b5cc44cc78250327cb23a45a3144c1c1ddbf89593f4946ae2f38c82c00a4d7057af0c5a8717572d4663967b072b302753f1751549eb758e9a520cf978ec187a6

        • C:\Users\Admin\AppData\Local\8f79e924-cbf9-49e8-a7cb-a4d21c3999a9\build2.exe

          Filesize

          406KB

          MD5

          a5293cb8841eb96b8a6618f1e11cb730

          SHA1

          db640ebdfc3b98fe7a8223a44f4e997fa28cacc0

          SHA256

          810be76ae3ecc5ab7f019f91979ac9ebf76ed220a7b42c2254a21ec660f8289f

          SHA512

          b5cc44cc78250327cb23a45a3144c1c1ddbf89593f4946ae2f38c82c00a4d7057af0c5a8717572d4663967b072b302753f1751549eb758e9a520cf978ec187a6

        • C:\Users\Admin\AppData\Local\8f79e924-cbf9-49e8-a7cb-a4d21c3999a9\build2.exe

          Filesize

          406KB

          MD5

          a5293cb8841eb96b8a6618f1e11cb730

          SHA1

          db640ebdfc3b98fe7a8223a44f4e997fa28cacc0

          SHA256

          810be76ae3ecc5ab7f019f91979ac9ebf76ed220a7b42c2254a21ec660f8289f

          SHA512

          b5cc44cc78250327cb23a45a3144c1c1ddbf89593f4946ae2f38c82c00a4d7057af0c5a8717572d4663967b072b302753f1751549eb758e9a520cf978ec187a6

        • C:\Users\Admin\AppData\Local\8f79e924-cbf9-49e8-a7cb-a4d21c3999a9\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\8f79e924-cbf9-49e8-a7cb-a4d21c3999a9\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\8f79e924-cbf9-49e8-a7cb-a4d21c3999a9\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/2400-162-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2400-298-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2400-172-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2400-165-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2400-163-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2400-270-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2400-267-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2400-269-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2400-295-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2400-173-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2400-201-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2504-154-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2504-138-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2504-157-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2504-136-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2504-135-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2504-134-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3312-188-0x00000000025C0000-0x000000000261D000-memory.dmp

          Filesize

          372KB

        • memory/4420-137-0x0000000002710000-0x000000000282B000-memory.dmp

          Filesize

          1.1MB

        • memory/5088-187-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/5088-253-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/5088-293-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/5088-294-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/5088-213-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/5088-296-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/5088-190-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/5088-189-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/5088-185-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB