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Analysis

  • max time kernel
    294s
  • max time network
    178s
  • platform
    windows10-1703_x64
  • resource
    win10-20230621-en
  • resource tags

    arch:x64arch:x86image:win10-20230621-enlocale:en-usos:windows10-1703-x64system
  • submitted
    27/06/2023, 03:34

General

  • Target

    ae779315a072a6f90c5b92b849f10d806d008342c317a8e1015673a9621d7f9d.exe

  • Size

    698KB

  • MD5

    d5ddfbff203482be85854b64683506d5

  • SHA1

    8be359858d2a4ece58df8c15cf414e6101509bfd

  • SHA256

    ae779315a072a6f90c5b92b849f10d806d008342c317a8e1015673a9621d7f9d

  • SHA512

    6a43ec094109f3fcfb6505655f96206e3f10360ff3c6eb47b085ee45384d26fdcfd485187eaffdbfda00b1d2650e4424343e40182294051c23e89462ea2c65fd

  • SSDEEP

    12288:QNynOGpYsIozCMNc2G7PMje93E9VD5ijthnw/MdzldHKJ3ao8ZJ9:Q8OGpYABNC7PpNqnijtNDq9Z8V

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .tghz

  • offline_id

    hZRMDGn2o1XdryxaQbOJI60EuHBvAbPnWEccdDt1

  • 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-OQnsJqCOOl 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: 0732SwOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.4

Botnet

153ce668f1e21829c936c2b11fa4d869

C2

https://steamcommunity.com/profiles/76561199235044780

https://t.me/headlist

Attributes
  • profile_id_v2

    153ce668f1e21829c936c2b11fa4d869

  • user_agent

    Mozilla/5.0 (Linux; Android 7.0; Pixel C Build/NRD91D; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.124 Safari/537.36

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
  • 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).

  • 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 48 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ae779315a072a6f90c5b92b849f10d806d008342c317a8e1015673a9621d7f9d.exe
    "C:\Users\Admin\AppData\Local\Temp\ae779315a072a6f90c5b92b849f10d806d008342c317a8e1015673a9621d7f9d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1840
    • C:\Users\Admin\AppData\Local\Temp\ae779315a072a6f90c5b92b849f10d806d008342c317a8e1015673a9621d7f9d.exe
      "C:\Users\Admin\AppData\Local\Temp\ae779315a072a6f90c5b92b849f10d806d008342c317a8e1015673a9621d7f9d.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1580
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\818be556-6af3-47aa-80da-a3fc12c65069" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4248
      • C:\Users\Admin\AppData\Local\Temp\ae779315a072a6f90c5b92b849f10d806d008342c317a8e1015673a9621d7f9d.exe
        "C:\Users\Admin\AppData\Local\Temp\ae779315a072a6f90c5b92b849f10d806d008342c317a8e1015673a9621d7f9d.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1420
        • C:\Users\Admin\AppData\Local\Temp\ae779315a072a6f90c5b92b849f10d806d008342c317a8e1015673a9621d7f9d.exe
          "C:\Users\Admin\AppData\Local\Temp\ae779315a072a6f90c5b92b849f10d806d008342c317a8e1015673a9621d7f9d.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3004
          • C:\Users\Admin\AppData\Local\ec3a448f-8b2a-4165-b982-c4472c9bbbbb\build2.exe
            "C:\Users\Admin\AppData\Local\ec3a448f-8b2a-4165-b982-c4472c9bbbbb\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1520
            • C:\Users\Admin\AppData\Local\ec3a448f-8b2a-4165-b982-c4472c9bbbbb\build2.exe
              "C:\Users\Admin\AppData\Local\ec3a448f-8b2a-4165-b982-c4472c9bbbbb\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:1128
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\ec3a448f-8b2a-4165-b982-c4472c9bbbbb\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4340
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4412
          • C:\Users\Admin\AppData\Local\ec3a448f-8b2a-4165-b982-c4472c9bbbbb\build3.exe
            "C:\Users\Admin\AppData\Local\ec3a448f-8b2a-4165-b982-c4472c9bbbbb\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4988
            • 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:4940
  • 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:4916
    • 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:2340

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    cdd6c07f8990902537a485f9b14f1229

    SHA1

    586cc141074255e5022cbe877661afb89491d743

    SHA256

    2435834334b2653c9aac633044a672e6557724572a173bd49c8ca7404557ade9

    SHA512

    82de043b0cc2e5c2b533b4e282d2fb7bb6b40b63c957d42d4227650fb08c1a7209c6c53f9f6676f6267380b039f9fcbadce1e5e6c0f12ff1b5dc08566887a295

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

    Filesize

    1KB

    MD5

    efe55e5cf4022c095ce9fa86e9674f4c

    SHA1

    3cb07b456b38cd61264d2071945903f4f7fb3665

    SHA256

    955bdb71f600654160800213127d0ac32432d7ab6871fd5dcf84708b5e07ab30

    SHA512

    bfb8220f94b3236e688f29fb451605f46cc5bfd89cf70c4bed1796818fda4051bd5643341c18e6bf4eb31891e33eb3cca4ea60a8b72b363a2c0f6fd88265fd1d

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

    Filesize

    488B

    MD5

    15354ecd9da9ca9b9b932b4ba57dbf94

    SHA1

    056da3700bdf13cc2abdc46c6cc4304f6c60fce5

    SHA256

    02e095de9191b85143ad24ab6bef88b89681bacf5ef9197df8249a201f9b59a8

    SHA512

    aebc41f3b9477019288bd5ec793dcd811b333f2e7309218d219545d466e7449417854b5b37234f4fdec06127b25210ed89b655a9b6d5910f257cfa490525a747

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

    Filesize

    482B

    MD5

    b5aa438f2f879d4c87ea72b7f7ccfadf

    SHA1

    d491f47632688c64b3c9ec0e34d58cfa9d89dd23

    SHA256

    889a84c8dfdeb7a1d973eb1b43386d08cf84a144a8d0a0e6a3b87248d4e0473b

    SHA512

    4364dfdc6dc1d4ad7dbab21c5fdd8c075e3488f495dd82d74b26fb96b744f3c04b04d5b023ac67dfa353dabdb78c894f14208fe5903cb8eaafc527c5a2c05dea

  • C:\Users\Admin\AppData\Local\818be556-6af3-47aa-80da-a3fc12c65069\ae779315a072a6f90c5b92b849f10d806d008342c317a8e1015673a9621d7f9d.exe

    Filesize

    698KB

    MD5

    d5ddfbff203482be85854b64683506d5

    SHA1

    8be359858d2a4ece58df8c15cf414e6101509bfd

    SHA256

    ae779315a072a6f90c5b92b849f10d806d008342c317a8e1015673a9621d7f9d

    SHA512

    6a43ec094109f3fcfb6505655f96206e3f10360ff3c6eb47b085ee45384d26fdcfd485187eaffdbfda00b1d2650e4424343e40182294051c23e89462ea2c65fd

  • C:\Users\Admin\AppData\Local\ec3a448f-8b2a-4165-b982-c4472c9bbbbb\build2.exe

    Filesize

    340KB

    MD5

    b7133c4070082747c60bf6191a5f70de

    SHA1

    a7568a93d9dc79a211270736c5989c5f6635e9b6

    SHA256

    a96e080ee195fb2333191fb38c7a66e0c0bd029af6480dc489a8c8113e5b03a9

    SHA512

    f3dd85289894e9ddfd61d1d5b5cb479b97d7e0759327236b72150d22b790a2492bd4929d8427aac50b48ed6e7e18abccbe401cb7d5f5deb683e8c813afbb72fe

  • C:\Users\Admin\AppData\Local\ec3a448f-8b2a-4165-b982-c4472c9bbbbb\build2.exe

    Filesize

    340KB

    MD5

    b7133c4070082747c60bf6191a5f70de

    SHA1

    a7568a93d9dc79a211270736c5989c5f6635e9b6

    SHA256

    a96e080ee195fb2333191fb38c7a66e0c0bd029af6480dc489a8c8113e5b03a9

    SHA512

    f3dd85289894e9ddfd61d1d5b5cb479b97d7e0759327236b72150d22b790a2492bd4929d8427aac50b48ed6e7e18abccbe401cb7d5f5deb683e8c813afbb72fe

  • C:\Users\Admin\AppData\Local\ec3a448f-8b2a-4165-b982-c4472c9bbbbb\build2.exe

    Filesize

    340KB

    MD5

    b7133c4070082747c60bf6191a5f70de

    SHA1

    a7568a93d9dc79a211270736c5989c5f6635e9b6

    SHA256

    a96e080ee195fb2333191fb38c7a66e0c0bd029af6480dc489a8c8113e5b03a9

    SHA512

    f3dd85289894e9ddfd61d1d5b5cb479b97d7e0759327236b72150d22b790a2492bd4929d8427aac50b48ed6e7e18abccbe401cb7d5f5deb683e8c813afbb72fe

  • C:\Users\Admin\AppData\Local\ec3a448f-8b2a-4165-b982-c4472c9bbbbb\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\ec3a448f-8b2a-4165-b982-c4472c9bbbbb\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/1128-219-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1128-169-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1128-220-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1128-182-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/1128-170-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1128-167-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1128-221-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1128-165-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1520-168-0x00000000037A0000-0x00000000037F6000-memory.dmp

    Filesize

    344KB

  • memory/1580-123-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1580-122-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1580-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1580-126-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1580-125-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1840-124-0x0000000002400000-0x000000000251B000-memory.dmp

    Filesize

    1.1MB

  • memory/3004-156-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3004-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3004-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3004-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3004-230-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3004-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3004-155-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3004-141-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3004-171-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3004-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB