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Analysis

  • max time kernel
    141s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2023, 18:58

General

  • Target

    376f9f885873267e22ae8f7fcc98fc359d8383e34e869fd2ccea68ac32486583.exe

  • Size

    762KB

  • MD5

    cf014ab0a3e616d4191e3e3cc58dd447

  • SHA1

    59ec38834c2315d92749a64c07339ae9db7c6827

  • SHA256

    376f9f885873267e22ae8f7fcc98fc359d8383e34e869fd2ccea68ac32486583

  • SHA512

    53974f0cdff6f74ead8e5b485cd8786a7b4c1c296a532cf6e965da61d52d35e17ffbceada0c7a040aeb65476c475a9fa5d241b34ca264f2ef9d8a717a6f87b9c

  • SSDEEP

    12288:1mjc3u2YSCmZZWtG7lNGqiTYK9YlYyBfRq6+eemjxKQq8zTylP+2o:1AU3ZRtiS9H7fdlpfy+2

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .wwza

  • offline_id

    LtYnlJvK0hICyOCeum6Tv4pbia9jcIGHVgA3Xht1

  • 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-xoUXGr6cqT 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: 0789JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

6.1

Botnet

13088c19c5a97b42d0d1d9573cc9f1b8

C2

https://steamcommunity.com/profiles/76561199563297648

https://t.me/twowheelfun

Attributes
  • profile_id_v2

    13088c19c5a97b42d0d1d9573cc9f1b8

  • user_agent

    Mozilla/5.0 (iPad; CPU OS 17_0_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Mobile/15E148 Safari/605.1.15

Signatures

  • Detected Djvu ransomware 15 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 2 IoCs
  • Loads dropped DLL 4 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.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\376f9f885873267e22ae8f7fcc98fc359d8383e34e869fd2ccea68ac32486583.exe
    "C:\Users\Admin\AppData\Local\Temp\376f9f885873267e22ae8f7fcc98fc359d8383e34e869fd2ccea68ac32486583.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2156
    • C:\Users\Admin\AppData\Local\Temp\376f9f885873267e22ae8f7fcc98fc359d8383e34e869fd2ccea68ac32486583.exe
      "C:\Users\Admin\AppData\Local\Temp\376f9f885873267e22ae8f7fcc98fc359d8383e34e869fd2ccea68ac32486583.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3052
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\55242b8e-1a64-4e6f-a5e6-fea658629065" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2616
      • C:\Users\Admin\AppData\Local\Temp\376f9f885873267e22ae8f7fcc98fc359d8383e34e869fd2ccea68ac32486583.exe
        "C:\Users\Admin\AppData\Local\Temp\376f9f885873267e22ae8f7fcc98fc359d8383e34e869fd2ccea68ac32486583.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2524
        • C:\Users\Admin\AppData\Local\Temp\376f9f885873267e22ae8f7fcc98fc359d8383e34e869fd2ccea68ac32486583.exe
          "C:\Users\Admin\AppData\Local\Temp\376f9f885873267e22ae8f7fcc98fc359d8383e34e869fd2ccea68ac32486583.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2476
          • C:\Users\Admin\AppData\Local\58cdee7b-67b8-4f6c-b4e1-18d3d0e87716\build2.exe
            "C:\Users\Admin\AppData\Local\58cdee7b-67b8-4f6c-b4e1-18d3d0e87716\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2052
            • C:\Users\Admin\AppData\Local\58cdee7b-67b8-4f6c-b4e1-18d3d0e87716\build2.exe
              "C:\Users\Admin\AppData\Local\58cdee7b-67b8-4f6c-b4e1-18d3d0e87716\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Modifies system certificate store
              • Suspicious behavior: EnumeratesProcesses
              PID:2192

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

    Filesize

    1KB

    MD5

    0268ef551139ac7672a96e6658ce044a

    SHA1

    b005ca526faa872c8e0aeafd11e3335c28c16037

    SHA256

    417ec67ee533de68e2008cc547552d33878e0d9bedd6ceaf5572d37112bb036a

    SHA512

    5405872c99f9f88596d39057d8701ba360b498d8bbb5eb64cd5af5f8f1100e0ecdaf09ad811aa0b3fc92ddfcef05d1a14e6495868e4995af049cd3be0247860d

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

    Filesize

    724B

    MD5

    8202a1cd02e7d69597995cabbe881a12

    SHA1

    8858d9d934b7aa9330ee73de6c476acf19929ff6

    SHA256

    58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

    SHA512

    97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

    Filesize

    410B

    MD5

    a90bbd7f11733d3373dc01965c392b61

    SHA1

    db645645135397a6c851dec5107f5008b85a036c

    SHA256

    19b2e5f9f0ef298a6f9c138ca11de462bc2f448b16dec912b3993c44799609e6

    SHA512

    4aaf24be99d22106140a3d3c72f93b14ccc6a5c5aef857b96409eae84fdad8a553b34439db71b75d97705ac971057d58a5ce9251e37468d2009b37b7b6aa83d6

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    757f02b1df79a45bb97947e04a14f012

    SHA1

    487fafacb49f9a0c5fdd5b8332e8bdd531382398

    SHA256

    f808a6f5f48b01f086e126b1f7962088888636a147c4bd35ad2611a72117947c

    SHA512

    668dea9c48dad8212b37d203d1b5e5d0d0e014198e32512b5a31e0e4fbe11c6f5067b4bd165057ce5bc85106e5ff5a0dcd4622f7ef2edd253f04e401511b0f6d

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

    Filesize

    392B

    MD5

    13cb44ee70ef61f8946065fa400ff106

    SHA1

    9ad7610fcd90ba0f52f3ff760ffb66f2849ecf04

    SHA256

    65a02e0917b80fb44364ff5d143715b877b42dc44eda08d88945d1d1608cf809

    SHA512

    5f4a3234b99cf45efeec8b1bf8d5248a53e1811762a7f740aa6ee2cbd7559486d946b5178f7fe78d413bcaf250def661ccb06a09c997f7d40178503436e7c98e

  • C:\Users\Admin\AppData\Local\55242b8e-1a64-4e6f-a5e6-fea658629065\376f9f885873267e22ae8f7fcc98fc359d8383e34e869fd2ccea68ac32486583.exe

    Filesize

    762KB

    MD5

    cf014ab0a3e616d4191e3e3cc58dd447

    SHA1

    59ec38834c2315d92749a64c07339ae9db7c6827

    SHA256

    376f9f885873267e22ae8f7fcc98fc359d8383e34e869fd2ccea68ac32486583

    SHA512

    53974f0cdff6f74ead8e5b485cd8786a7b4c1c296a532cf6e965da61d52d35e17ffbceada0c7a040aeb65476c475a9fa5d241b34ca264f2ef9d8a717a6f87b9c

  • C:\Users\Admin\AppData\Local\58cdee7b-67b8-4f6c-b4e1-18d3d0e87716\build2.exe

    Filesize

    373KB

    MD5

    8012f0388cdda7870e63a5723ff24e9b

    SHA1

    08ed4dc8ded91f4aa23324b7eac56a22a883005d

    SHA256

    5f44375ddddaedfcd4f2499d3e121b7d9ee627b751f2d0914a562d35d7c9a551

    SHA512

    f59ce84fd7a3762efb919bb8474226fdb99765f80e4a40a9a66764a1502150fe40804be5363caeda6d27fdcfe44e5897a8c624db9993c2c890d83bbb660c01d3

  • C:\Users\Admin\AppData\Local\58cdee7b-67b8-4f6c-b4e1-18d3d0e87716\build2.exe

    Filesize

    373KB

    MD5

    8012f0388cdda7870e63a5723ff24e9b

    SHA1

    08ed4dc8ded91f4aa23324b7eac56a22a883005d

    SHA256

    5f44375ddddaedfcd4f2499d3e121b7d9ee627b751f2d0914a562d35d7c9a551

    SHA512

    f59ce84fd7a3762efb919bb8474226fdb99765f80e4a40a9a66764a1502150fe40804be5363caeda6d27fdcfe44e5897a8c624db9993c2c890d83bbb660c01d3

  • C:\Users\Admin\AppData\Local\58cdee7b-67b8-4f6c-b4e1-18d3d0e87716\build2.exe

    Filesize

    373KB

    MD5

    8012f0388cdda7870e63a5723ff24e9b

    SHA1

    08ed4dc8ded91f4aa23324b7eac56a22a883005d

    SHA256

    5f44375ddddaedfcd4f2499d3e121b7d9ee627b751f2d0914a562d35d7c9a551

    SHA512

    f59ce84fd7a3762efb919bb8474226fdb99765f80e4a40a9a66764a1502150fe40804be5363caeda6d27fdcfe44e5897a8c624db9993c2c890d83bbb660c01d3

  • C:\Users\Admin\AppData\Local\58cdee7b-67b8-4f6c-b4e1-18d3d0e87716\build2.exe

    Filesize

    373KB

    MD5

    8012f0388cdda7870e63a5723ff24e9b

    SHA1

    08ed4dc8ded91f4aa23324b7eac56a22a883005d

    SHA256

    5f44375ddddaedfcd4f2499d3e121b7d9ee627b751f2d0914a562d35d7c9a551

    SHA512

    f59ce84fd7a3762efb919bb8474226fdb99765f80e4a40a9a66764a1502150fe40804be5363caeda6d27fdcfe44e5897a8c624db9993c2c890d83bbb660c01d3

  • C:\Users\Admin\AppData\Local\Temp\Cab8009.tmp

    Filesize

    61KB

    MD5

    f3441b8572aae8801c04f3060b550443

    SHA1

    4ef0a35436125d6821831ef36c28ffaf196cda15

    SHA256

    6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

    SHA512

    5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

  • C:\Users\Admin\AppData\Local\Temp\TarCAFE.tmp

    Filesize

    163KB

    MD5

    9441737383d21192400eca82fda910ec

    SHA1

    725e0d606a4fc9ba44aa8ffde65bed15e65367e4

    SHA256

    bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

    SHA512

    7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

  • \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

  • \Users\Admin\AppData\Local\58cdee7b-67b8-4f6c-b4e1-18d3d0e87716\build2.exe

    Filesize

    373KB

    MD5

    8012f0388cdda7870e63a5723ff24e9b

    SHA1

    08ed4dc8ded91f4aa23324b7eac56a22a883005d

    SHA256

    5f44375ddddaedfcd4f2499d3e121b7d9ee627b751f2d0914a562d35d7c9a551

    SHA512

    f59ce84fd7a3762efb919bb8474226fdb99765f80e4a40a9a66764a1502150fe40804be5363caeda6d27fdcfe44e5897a8c624db9993c2c890d83bbb660c01d3

  • \Users\Admin\AppData\Local\58cdee7b-67b8-4f6c-b4e1-18d3d0e87716\build2.exe

    Filesize

    373KB

    MD5

    8012f0388cdda7870e63a5723ff24e9b

    SHA1

    08ed4dc8ded91f4aa23324b7eac56a22a883005d

    SHA256

    5f44375ddddaedfcd4f2499d3e121b7d9ee627b751f2d0914a562d35d7c9a551

    SHA512

    f59ce84fd7a3762efb919bb8474226fdb99765f80e4a40a9a66764a1502150fe40804be5363caeda6d27fdcfe44e5897a8c624db9993c2c890d83bbb660c01d3

  • memory/2052-74-0x00000000008F0000-0x00000000009F0000-memory.dmp

    Filesize

    1024KB

  • memory/2052-75-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/2156-0-0x0000000000220000-0x00000000002B1000-memory.dmp

    Filesize

    580KB

  • memory/2156-1-0x0000000000220000-0x00000000002B1000-memory.dmp

    Filesize

    580KB

  • memory/2156-7-0x0000000000220000-0x00000000002B1000-memory.dmp

    Filesize

    580KB

  • memory/2156-2-0x0000000001FF0000-0x000000000210B000-memory.dmp

    Filesize

    1.1MB

  • memory/2192-136-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2192-77-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2192-176-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2192-175-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2192-81-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2192-135-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2192-85-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/2476-51-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2476-174-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2476-71-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2476-58-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2476-55-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2476-50-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2476-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2476-36-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2476-80-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2476-57-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2524-35-0x0000000000800000-0x0000000000891000-memory.dmp

    Filesize

    580KB

  • memory/2524-28-0x0000000000800000-0x0000000000891000-memory.dmp

    Filesize

    580KB

  • memory/2524-30-0x0000000000800000-0x0000000000891000-memory.dmp

    Filesize

    580KB

  • memory/3052-27-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3052-9-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3052-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3052-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3052-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB