Analysis

  • max time kernel
    140s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2022, 11:05

General

  • Target

    b16110c0870b8568def0c10e74e10afa6eb3635c07aec61d7c68b555b7444e39.exe

  • Size

    664KB

  • MD5

    3557198c85df8ae3de7a30029fea548c

  • SHA1

    c9118f9ee3635083da5baea35aa0e35e5fbdde4a

  • SHA256

    b16110c0870b8568def0c10e74e10afa6eb3635c07aec61d7c68b555b7444e39

  • SHA512

    5044b4e60d606b4a04940ccdd5075605ee7a0d3aeeb2026c422f94c3c9ff89414afc1ab95af509bdeecf7dad19d6733e4bea139c90732b3830e19d267911fbea

  • SSDEEP

    12288:0tRMFkNYXcCj208FSd0yv2CtDD7C5eEL9+7TYQfYxi5mFqzbSWUP:0tRMFHXz82LvnwTwnYQAxi5iHP

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

54.7

Botnet

517

C2

https://t.me/trampapanam

https://nerdculture.de/@yoxhyp

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
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\b16110c0870b8568def0c10e74e10afa6eb3635c07aec61d7c68b555b7444e39.exe
    "C:\Users\Admin\AppData\Local\Temp\b16110c0870b8568def0c10e74e10afa6eb3635c07aec61d7c68b555b7444e39.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3280
    • C:\Users\Admin\AppData\Local\Temp\b16110c0870b8568def0c10e74e10afa6eb3635c07aec61d7c68b555b7444e39.exe
      "C:\Users\Admin\AppData\Local\Temp\b16110c0870b8568def0c10e74e10afa6eb3635c07aec61d7c68b555b7444e39.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4260
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\a9f54cfb-7747-4ace-97c2-3587fb077309" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3372
      • C:\Users\Admin\AppData\Local\Temp\b16110c0870b8568def0c10e74e10afa6eb3635c07aec61d7c68b555b7444e39.exe
        "C:\Users\Admin\AppData\Local\Temp\b16110c0870b8568def0c10e74e10afa6eb3635c07aec61d7c68b555b7444e39.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2008
        • C:\Users\Admin\AppData\Local\Temp\b16110c0870b8568def0c10e74e10afa6eb3635c07aec61d7c68b555b7444e39.exe
          "C:\Users\Admin\AppData\Local\Temp\b16110c0870b8568def0c10e74e10afa6eb3635c07aec61d7c68b555b7444e39.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4572
          • C:\Users\Admin\AppData\Local\df5148eb-d732-4ca6-9c4b-4cf522ca2e33\build2.exe
            "C:\Users\Admin\AppData\Local\df5148eb-d732-4ca6-9c4b-4cf522ca2e33\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4628
            • C:\Users\Admin\AppData\Local\df5148eb-d732-4ca6-9c4b-4cf522ca2e33\build2.exe
              "C:\Users\Admin\AppData\Local\df5148eb-d732-4ca6-9c4b-4cf522ca2e33\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:2848
          • C:\Users\Admin\AppData\Local\df5148eb-d732-4ca6-9c4b-4cf522ca2e33\build3.exe
            "C:\Users\Admin\AppData\Local\df5148eb-d732-4ca6-9c4b-4cf522ca2e33\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3164
            • 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:4116
  • 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:3944
    • 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:2896

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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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

    5f0a548198075b4cd8c891c5c0f45e4c

    SHA1

    c3dd48a91f5a4dfbecd2a9e5802a8e5d8623aab6

    SHA256

    bcb8d4f0e605ffe557f9f3d23291e2212f39acfa1df9f24331a4075810555839

    SHA512

    8ade693197f9ca350f7c549312de77d70ef362dd3772a9ebb86c30dc7311d047bac0b9e1b517001b4e470271f7f181313f87eeae5b7a71ec5b7be5380525e22f

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

    Filesize

    1KB

    MD5

    cb19ea31ccbd0203dd87e096916c57fa

    SHA1

    cab9da6765c414006fc24a26afe3d9faed3da46c

    SHA256

    f2c2e4c4cb0138ea54016a5b4e248a37f10c3ce22ad3ac85f8509a9692d0394b

    SHA512

    20b5e6d75aa6340e47bb723541ede1ca9a54b8df916e3b9ae6e27ae869dfd13605feb400e0c847974594e126b9852dcb1785f55fc93ba10abcdef93ef71f5b36

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

    Filesize

    488B

    MD5

    dc18d93d73ebdd6426d6e6bb07194f89

    SHA1

    fe5599a98c10e66909b502c6101b0accb5e22176

    SHA256

    8a2ddc2fc7c38bd6181025f581d3326fec205d07cfcd835239f6e61d1d6a76d1

    SHA512

    7d510eb94b3044c619381c887c2a5db1d42effe1c6ef169f503671fd8b814fdfb61a9da7650243b5fdaa9e5f4fc10fc2736c4d21830a5ad9e6b60d3f67edf0a2

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

    Filesize

    482B

    MD5

    de48aa12021f01ca0d3b43cd74784378

    SHA1

    be4c953514f8d8a0d7cc898a2e3c616cf94f8f61

    SHA256

    76e197dfe64afecd54bd056f8cd4c8817040e94dff3c196a3e0dea78a5043bc5

    SHA512

    bb2cca90996ff42ce68c6e63d27d8763a431b2a783e8b1359e2af75149f227713d3c7b3b1c4c85b034e1f1c5f9f8616a9a4d835d53023ba32fcdb8c1954ab994

  • C:\Users\Admin\AppData\Local\a9f54cfb-7747-4ace-97c2-3587fb077309\b16110c0870b8568def0c10e74e10afa6eb3635c07aec61d7c68b555b7444e39.exe

    Filesize

    664KB

    MD5

    3557198c85df8ae3de7a30029fea548c

    SHA1

    c9118f9ee3635083da5baea35aa0e35e5fbdde4a

    SHA256

    b16110c0870b8568def0c10e74e10afa6eb3635c07aec61d7c68b555b7444e39

    SHA512

    5044b4e60d606b4a04940ccdd5075605ee7a0d3aeeb2026c422f94c3c9ff89414afc1ab95af509bdeecf7dad19d6733e4bea139c90732b3830e19d267911fbea

  • C:\Users\Admin\AppData\Local\df5148eb-d732-4ca6-9c4b-4cf522ca2e33\build2.exe

    Filesize

    418KB

    MD5

    bc47d3a0d4a74adc40b3a7035344becb

    SHA1

    dd80bbe70106b62ea58924173a364cc936a0b1f4

    SHA256

    06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

    SHA512

    4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

  • C:\Users\Admin\AppData\Local\df5148eb-d732-4ca6-9c4b-4cf522ca2e33\build2.exe

    Filesize

    418KB

    MD5

    bc47d3a0d4a74adc40b3a7035344becb

    SHA1

    dd80bbe70106b62ea58924173a364cc936a0b1f4

    SHA256

    06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

    SHA512

    4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

  • C:\Users\Admin\AppData\Local\df5148eb-d732-4ca6-9c4b-4cf522ca2e33\build2.exe

    Filesize

    418KB

    MD5

    bc47d3a0d4a74adc40b3a7035344becb

    SHA1

    dd80bbe70106b62ea58924173a364cc936a0b1f4

    SHA256

    06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

    SHA512

    4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

  • C:\Users\Admin\AppData\Local\df5148eb-d732-4ca6-9c4b-4cf522ca2e33\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\df5148eb-d732-4ca6-9c4b-4cf522ca2e33\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/2008-146-0x0000000002224000-0x00000000022B5000-memory.dmp

    Filesize

    580KB

  • memory/2848-192-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/2848-172-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2848-171-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/2848-164-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/2848-166-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/2848-167-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/3280-134-0x0000000002500000-0x000000000261B000-memory.dmp

    Filesize

    1.1MB

  • memory/3280-132-0x0000000002373000-0x0000000002404000-memory.dmp

    Filesize

    580KB

  • memory/4260-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4260-140-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4260-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4260-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4260-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4572-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4572-170-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4572-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4572-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4628-169-0x00000000005C0000-0x0000000000607000-memory.dmp

    Filesize

    284KB

  • memory/4628-168-0x000000000065E000-0x0000000000687000-memory.dmp

    Filesize

    164KB