Analysis

  • max time kernel
    85s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2022 17:21

General

  • Target

    a004ff064ff5757a244ef3f943657364c9185de53d7b1a185d9a980b089facae.exe

  • Size

    802KB

  • MD5

    2f86489c9f5566ec7bd0d3cad8483f29

  • SHA1

    60feeb5a3cfbafd6c6923f71b90a5806acc22d46

  • SHA256

    a004ff064ff5757a244ef3f943657364c9185de53d7b1a185d9a980b089facae

  • SHA512

    829da186c4e10dfd0d2ddf0b27c1599c6338e57f9e590ccd8e88815ab32e794d04411de26ef94512ddd6d930e7496ab975c6b2be2f5af14d613a99e175f4bf77

  • SSDEEP

    12288:1wuVN9uJ2MylAhlTGn41L1kNczO21xSVmRpMy9C822ZVEX:1wuVNQMXwl6VNcTjgmRpBh22ZV

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .tcvp

  • offline_id

    JBPpFMvWlKMsKlJRmPJl5e09RSnYrRJya1oX8xt1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://fresherlights.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-bpYXr2m3kI 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: 0604Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

55.8

Botnet

517

C2

https://t.me/headshotsonly

https://steamcommunity.com/profiles/76561199436777531

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 3 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a004ff064ff5757a244ef3f943657364c9185de53d7b1a185d9a980b089facae.exe
    "C:\Users\Admin\AppData\Local\Temp\a004ff064ff5757a244ef3f943657364c9185de53d7b1a185d9a980b089facae.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4532
    • C:\Users\Admin\AppData\Local\Temp\a004ff064ff5757a244ef3f943657364c9185de53d7b1a185d9a980b089facae.exe
      "C:\Users\Admin\AppData\Local\Temp\a004ff064ff5757a244ef3f943657364c9185de53d7b1a185d9a980b089facae.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2264
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\97aa35c0-00ac-4e8b-a5c7-52bf0df0a7f0" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4436
      • C:\Users\Admin\AppData\Local\Temp\a004ff064ff5757a244ef3f943657364c9185de53d7b1a185d9a980b089facae.exe
        "C:\Users\Admin\AppData\Local\Temp\a004ff064ff5757a244ef3f943657364c9185de53d7b1a185d9a980b089facae.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4972
        • C:\Users\Admin\AppData\Local\Temp\a004ff064ff5757a244ef3f943657364c9185de53d7b1a185d9a980b089facae.exe
          "C:\Users\Admin\AppData\Local\Temp\a004ff064ff5757a244ef3f943657364c9185de53d7b1a185d9a980b089facae.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1048
          • C:\Users\Admin\AppData\Local\7a3c6b22-090a-4198-8775-87af53617a7a\build2.exe
            "C:\Users\Admin\AppData\Local\7a3c6b22-090a-4198-8775-87af53617a7a\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1892
            • C:\Users\Admin\AppData\Local\7a3c6b22-090a-4198-8775-87af53617a7a\build2.exe
              "C:\Users\Admin\AppData\Local\7a3c6b22-090a-4198-8775-87af53617a7a\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:4224
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\7a3c6b22-090a-4198-8775-87af53617a7a\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4768
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:220
          • C:\Users\Admin\AppData\Local\7a3c6b22-090a-4198-8775-87af53617a7a\build3.exe
            "C:\Users\Admin\AppData\Local\7a3c6b22-090a-4198-8775-87af53617a7a\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1504
            • 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:3944
  • 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:872
    • 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:4532

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

    38a9ee40b61155284982e2fa94ecabb8

    SHA1

    48847436aebb7737c0ffb7a1c7890b97277372ec

    SHA256

    39dfe13c61cf08b31abb081fb69a84fd106d9dce588d98bcda717b361403f3a5

    SHA512

    1ba66cc021295bd0d08b5882b41e48b68c5091de41d6e451f48c291ef4e837e8783ac36af6cc08fc4efe382cb8563358a48939a5902d5ad6ff69bbd9bc71a553

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

    Filesize

    1KB

    MD5

    23c896e3fc14b0352780bf8710ebd27a

    SHA1

    f80cbc14c2447f02c067cc2c126e105b552d472b

    SHA256

    df2d1a8ad65c48cb714d0157f4e14c374e45493c7e2ed1a03911f558055108c0

    SHA512

    230372de75058a3b6456b1f44efc95695a85d7317fc6e2575a8772af900a08e059aa8a5397a37e1231ffa6bb2e8a2684bc2e6a35cba500818a417387c915908e

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

    Filesize

    488B

    MD5

    f056898045b04e2aaaf9454376a1a823

    SHA1

    5c264d0159031bee03c379b4dbb9fac390050111

    SHA256

    1900d77592a5d7d2ea02a4c1e3ad583427bb3e1b72dfad199b097845375b7390

    SHA512

    f3df67d0216a28aca1ff47239de2fb98011de3f208458917150a79d4278619be59396a1ebcaafe04ca3ed8309523c310fc3318baea191073a9d86aa02b08edbd

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

    Filesize

    482B

    MD5

    8c97e002754a3a6318a3feb7d30dd4c1

    SHA1

    a91f0aafa57b2b446c73a5769617b2be59421463

    SHA256

    e82ef26ab5a33f4df40d9ba2e7d6976bd8df7566b6f501eb504b2609ed26642f

    SHA512

    c1891a4aa14a79e4f438973e2cbe9669be5ee60dfce54461764298c29d6e2d5eb078f431023797111f4ab5f0237aebbfb5ff798c09996c9929cb775f5bc90f7e

  • C:\Users\Admin\AppData\Local\7a3c6b22-090a-4198-8775-87af53617a7a\build2.exe

    Filesize

    397KB

    MD5

    724c04ee1bf4c248712b47cbb65e7782

    SHA1

    1292f72116df9bf615ca61ef016cef4e20a024b5

    SHA256

    84ef700ffb4e47c5b24e58d773284c9eeb03de5065dfabdcd34f883693facd7a

    SHA512

    63472e9fa979d5796d8705626b7a00ab77e4c3327a63e71079c2f1dd515e829e43821aba47e052949c7038cacedf207c1aa01b273db8c74583b58c2afd3c6ee5

  • C:\Users\Admin\AppData\Local\7a3c6b22-090a-4198-8775-87af53617a7a\build2.exe

    Filesize

    397KB

    MD5

    724c04ee1bf4c248712b47cbb65e7782

    SHA1

    1292f72116df9bf615ca61ef016cef4e20a024b5

    SHA256

    84ef700ffb4e47c5b24e58d773284c9eeb03de5065dfabdcd34f883693facd7a

    SHA512

    63472e9fa979d5796d8705626b7a00ab77e4c3327a63e71079c2f1dd515e829e43821aba47e052949c7038cacedf207c1aa01b273db8c74583b58c2afd3c6ee5

  • C:\Users\Admin\AppData\Local\7a3c6b22-090a-4198-8775-87af53617a7a\build2.exe

    Filesize

    397KB

    MD5

    724c04ee1bf4c248712b47cbb65e7782

    SHA1

    1292f72116df9bf615ca61ef016cef4e20a024b5

    SHA256

    84ef700ffb4e47c5b24e58d773284c9eeb03de5065dfabdcd34f883693facd7a

    SHA512

    63472e9fa979d5796d8705626b7a00ab77e4c3327a63e71079c2f1dd515e829e43821aba47e052949c7038cacedf207c1aa01b273db8c74583b58c2afd3c6ee5

  • C:\Users\Admin\AppData\Local\7a3c6b22-090a-4198-8775-87af53617a7a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\7a3c6b22-090a-4198-8775-87af53617a7a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\97aa35c0-00ac-4e8b-a5c7-52bf0df0a7f0\a004ff064ff5757a244ef3f943657364c9185de53d7b1a185d9a980b089facae.exe

    Filesize

    802KB

    MD5

    2f86489c9f5566ec7bd0d3cad8483f29

    SHA1

    60feeb5a3cfbafd6c6923f71b90a5806acc22d46

    SHA256

    a004ff064ff5757a244ef3f943657364c9185de53d7b1a185d9a980b089facae

    SHA512

    829da186c4e10dfd0d2ddf0b27c1599c6338e57f9e590ccd8e88815ab32e794d04411de26ef94512ddd6d930e7496ab975c6b2be2f5af14d613a99e175f4bf77

  • 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/220-187-0x0000000000000000-mapping.dmp

  • memory/1048-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1048-184-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1048-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1048-143-0x0000000000000000-mapping.dmp

  • memory/1048-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1504-188-0x0000000000000000-mapping.dmp

  • memory/1892-162-0x0000000002090000-0x00000000020DB000-memory.dmp

    Filesize

    300KB

  • memory/1892-159-0x000000000049C000-0x00000000004C9000-memory.dmp

    Filesize

    180KB

  • memory/1892-153-0x0000000000000000-mapping.dmp

  • memory/2264-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2264-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2264-132-0x0000000000000000-mapping.dmp

  • memory/2264-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2264-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2264-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3944-191-0x0000000000000000-mapping.dmp

  • memory/4224-160-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4224-157-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4224-164-0x000000006E820000-0x000000006E913000-memory.dmp

    Filesize

    972KB

  • memory/4224-163-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4224-156-0x0000000000000000-mapping.dmp

  • memory/4224-186-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4224-161-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4436-139-0x0000000000000000-mapping.dmp

  • memory/4532-133-0x0000000002143000-0x00000000021D4000-memory.dmp

    Filesize

    580KB

  • memory/4532-135-0x00000000021E0000-0x00000000022FB000-memory.dmp

    Filesize

    1.1MB

  • memory/4532-194-0x0000000000000000-mapping.dmp

  • memory/4768-185-0x0000000000000000-mapping.dmp

  • memory/4972-146-0x00000000020F7000-0x0000000002188000-memory.dmp

    Filesize

    580KB

  • memory/4972-141-0x0000000000000000-mapping.dmp