Analysis

  • max time kernel
    107s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/10/2022, 23:37

General

  • Target

    83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe

  • Size

    747KB

  • MD5

    0f98265d37abd75eb929d95554fdcde5

  • SHA1

    19c351546115137e9fe052aa0ffc0a498fd5d3c2

  • SHA256

    83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339

  • SHA512

    5dc6ac1149e93555af84e4e951793de359cff48b81b556e183120f02353b9dbd9527332735882250a42ee19c3ef9302de7a89b98612977267326c57e200d1445

  • SSDEEP

    12288:mGM9ghmgVwUuFcBBPxKc3z34Uu9muGzTeQTU+iKpIMUyGacZ3Y0Bb5E/v9xIp3kq:mBe3VwUuFcBTKuTUGz7BpIwGacZ3YseS

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .tuis

  • offline_id

    Uz66zEbmA32arcxwT81zZhkb23026oHz5iSp8qt1

  • 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-o7UXxOstmw 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: 0582Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

55.1

Botnet

517

C2

https://t.me/tg_privatetalk

https://nerdculture.de/@yixehi33

Attributes
  • profile_id

    517

Signatures

  • Detected Djvu ransomware 11 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 3 IoCs

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

  • Loads dropped DLL 3 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe
    "C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4980
    • C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe
      "C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1584
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\6c7dac92-b846-43a7-95ce-74c0c8b07961" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2420
      • C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe
        "C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1920
        • C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe
          "C:\Users\Admin\AppData\Local\Temp\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4128
          • C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe
            "C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1704
            • C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe
              "C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe"
              6⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:1184
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:5116
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:2500
          • C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build3.exe
            "C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4852
            • 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:1268
  • 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:4876
    • 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:4888

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:\ProgramData\sqlite3.dll

    Filesize

    1.1MB

    MD5

    1f44d4d3087c2b202cf9c90ee9d04b0f

    SHA1

    106a3ebc9e39ab6ddb3ff987efb6527c956f192d

    SHA256

    4841020c8bd06b08fde6e44cbe2e2ab33439e1c8368e936ec5b00dc0584f7260

    SHA512

    b614c72a3c1ce681ebffa628e29aa50275cc80ca9267380960c5198ea4d0a3f2df6cfb7275491d220bad72f14fc94e6656501e9a061d102fb11e00cfda2beb45

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

    Filesize

    2KB

    MD5

    006c98bc42ac1d15f0ec70e3488783c5

    SHA1

    a8c8302826468c903b511e206d6d058e2c3acdaa

    SHA256

    e24883740fbed2781e4df4e5387cd95c3345ec9944edeeb36babd2c10135fa00

    SHA512

    e0caea17f99a18483e0195c5311942c195ef42532f1868bfb5c64b3f6cb72cc0fc58414176a9bfc66452e11d17c2058eafb483a41890f502ec76dc3a6807f2f4

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

    Filesize

    1KB

    MD5

    97ab7ffd65186e85f453dc7c02637528

    SHA1

    f22312a6a44613be85c0370878456a965f869a40

    SHA256

    630df8e970cc3b1ad508db713dd8be52e0ac7a5826f3f264a266232f9a1c23ee

    SHA512

    37d90c98e72ad55b2cbb938541c81bac1aa9d2b8a7e19f0fbfaa365b49e7bef2d3199f03e46aa9fbf3055f3701d21860820c451065f7e425d39bf86ca606bfb0

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

    Filesize

    488B

    MD5

    c3e253b3179becd3e062ca431786dc04

    SHA1

    ea68fa68fb6f792dd8b0df03815374884c1ef2a3

    SHA256

    564e2be8e225926d82e9d946ce26588f74223aec9c5909b0b919af3d1a060c74

    SHA512

    3486cb5442255687058792af082d5f31572e862cbdcf0bbe25ab145bacad13727fa96b471ea2a930c715b3c05a9241a3a50a3123377e341d57e973a7431800c3

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

    Filesize

    482B

    MD5

    270068767bbfc494c74f295e0c1fe015

    SHA1

    b1aea3bbc5b51e4d9e6006dbf2b0848eb208003e

    SHA256

    c88ed9da39b4a5d116b65426224cd94e5310e271cc961505e7ec3b4a4cf4a347

    SHA512

    3a47842b423327c3ea4fd06fc6ea2785764a2b61af4167d646994e7a02d08fb08a55485144664c5c9a09f2dc014ff1e073598cc32de0ea0e7bcdf86e6726c599

  • C:\Users\Admin\AppData\Local\6c7dac92-b846-43a7-95ce-74c0c8b07961\83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339.exe

    Filesize

    747KB

    MD5

    0f98265d37abd75eb929d95554fdcde5

    SHA1

    19c351546115137e9fe052aa0ffc0a498fd5d3c2

    SHA256

    83085fc25b2349c15f8af67c84b36a707edc7abaaf63ca41046d014505398339

    SHA512

    5dc6ac1149e93555af84e4e951793de359cff48b81b556e183120f02353b9dbd9527332735882250a42ee19c3ef9302de7a89b98612977267326c57e200d1445

  • C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe

    Filesize

    325KB

    MD5

    e4e90e1dda4b51d199d449fa936db902

    SHA1

    70de6b213f872ba782ba11cad5a5d1294ca9e741

    SHA256

    8ecc0426ea37a5c9e59d00b4fde1508175a950372ec3870965f1e527634b3419

    SHA512

    3958e1c40d69d5439b5e85bdb5765bb38ec5bba24f38a8aafb9a53c167ebaffb5c202441613af3f2d968c9c902de35036f67d87f7777efeb4c66869a7fc3c4ed

  • C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe

    Filesize

    325KB

    MD5

    e4e90e1dda4b51d199d449fa936db902

    SHA1

    70de6b213f872ba782ba11cad5a5d1294ca9e741

    SHA256

    8ecc0426ea37a5c9e59d00b4fde1508175a950372ec3870965f1e527634b3419

    SHA512

    3958e1c40d69d5439b5e85bdb5765bb38ec5bba24f38a8aafb9a53c167ebaffb5c202441613af3f2d968c9c902de35036f67d87f7777efeb4c66869a7fc3c4ed

  • C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build2.exe

    Filesize

    325KB

    MD5

    e4e90e1dda4b51d199d449fa936db902

    SHA1

    70de6b213f872ba782ba11cad5a5d1294ca9e741

    SHA256

    8ecc0426ea37a5c9e59d00b4fde1508175a950372ec3870965f1e527634b3419

    SHA512

    3958e1c40d69d5439b5e85bdb5765bb38ec5bba24f38a8aafb9a53c167ebaffb5c202441613af3f2d968c9c902de35036f67d87f7777efeb4c66869a7fc3c4ed

  • C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\cee88c56-c947-472e-a94c-f0fc0ac960ad\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/1184-169-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1184-179-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1184-177-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1184-161-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1184-163-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1184-159-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1584-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1584-139-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1584-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1584-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1584-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1584-144-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1704-162-0x00000000008C2000-0x00000000008EA000-memory.dmp

    Filesize

    160KB

  • memory/1704-165-0x0000000000860000-0x00000000008A4000-memory.dmp

    Filesize

    272KB

  • memory/1920-148-0x0000000000623000-0x00000000006B5000-memory.dmp

    Filesize

    584KB

  • memory/4128-154-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4128-173-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4128-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4128-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4980-132-0x000000000078B000-0x000000000081D000-memory.dmp

    Filesize

    584KB

  • memory/4980-133-0x0000000002320000-0x000000000243B000-memory.dmp

    Filesize

    1.1MB

  • memory/4980-137-0x000000000078B000-0x000000000081D000-memory.dmp

    Filesize

    584KB