Analysis

  • max time kernel
    91s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-09-2022 20:51

General

  • Target

    file.exe

  • Size

    659KB

  • MD5

    2fcf7dd37acbf420c078ef520850af64

  • SHA1

    677ef7f1033c5ae85d65ae7a0dee018834ead5ad

  • SHA256

    37d72be6e06830d950e10af30dab0bcb1ad8f67828b56926108ccd3de7432322

  • SHA512

    d96732cbb64e318531cb3c6554fe1cd21483400d97c98d0ddbaecb5545fbf76389ee85064a93bae1aa67efd812c3db164dea929faae447943b888c06fdb52ef4

  • SSDEEP

    12288:4sYORXIc6f7aE6RIru6qFTXrPHnQOH7EEevJwjfuNeIS8EqxYxXmfSQAYC7Y7n:vtRXIcuEoyXr4ObEEecuAiYxK1T

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 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
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4132
    • C:\Users\Admin\AppData\Local\Temp\file.exe
      "C:\Users\Admin\AppData\Local\Temp\file.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4460
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\c06e6492-3b2c-4a59-8333-aeb8ef1f0bce" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1448
      • C:\Users\Admin\AppData\Local\Temp\file.exe
        "C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:5060
        • C:\Users\Admin\AppData\Local\Temp\file.exe
          "C:\Users\Admin\AppData\Local\Temp\file.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:176
          • C:\Users\Admin\AppData\Local\71fd3dca-fec1-4c28-a517-404a7382ca3a\build2.exe
            "C:\Users\Admin\AppData\Local\71fd3dca-fec1-4c28-a517-404a7382ca3a\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2560
            • C:\Users\Admin\AppData\Local\71fd3dca-fec1-4c28-a517-404a7382ca3a\build2.exe
              "C:\Users\Admin\AppData\Local\71fd3dca-fec1-4c28-a517-404a7382ca3a\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:3844
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" S/c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\71fd3dca-fec1-4c28-a517-404a7382ca3a\build2.exe" & del C:\PrograData\*.dll & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:3512
                • C:\Windows\SysWOW64\taskkill.exe
                  taskkill /im build2.exe /f
                  8⤵
                  • Kills process with taskkill
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4028
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:612
          • C:\Users\Admin\AppData\Local\71fd3dca-fec1-4c28-a517-404a7382ca3a\build3.exe
            "C:\Users\Admin\AppData\Local\71fd3dca-fec1-4c28-a517-404a7382ca3a\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3940
            • 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:2360
  • 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:1124
    • 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:4080

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

    e5c70400d0f47637931b187c7956a131

    SHA1

    a0c2b6f7c6a2d0f45098beaadfb6fa081e4ae013

    SHA256

    7f67189377d51ab17f9b5c7945a3a98543967fb43384fdcb13e01bbace6665c2

    SHA512

    3b5da32da1dccf6837ea456976c3e959e9f5c7ce81af6c5cd1affefd988b16986b7ac5f9eba87f7eb8755c1d47cc5bdd70ff44d29b8d43b28f40c67eae8e8e1a

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

    Filesize

    482B

    MD5

    acda96c9f6aee025b423261f2c019a48

    SHA1

    4f7ac7ba09600646afdfd34c36d0bdae3aad8397

    SHA256

    b1afc287ced9d3ccfaaf233226be2528efff8db560a5b5607f24bfcf21991b65

    SHA512

    3a8422ce027e880a4c2759657bd05b6f02f0f27903d8d3f41c7dc3e6e69e9fcda78c38b7f6a3a439dffa6f8cd790c84103e1f0a2a49bba1f13286859ee025416

  • C:\Users\Admin\AppData\Local\71fd3dca-fec1-4c28-a517-404a7382ca3a\build2.exe

    Filesize

    418KB

    MD5

    bc47d3a0d4a74adc40b3a7035344becb

    SHA1

    dd80bbe70106b62ea58924173a364cc936a0b1f4

    SHA256

    06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

    SHA512

    4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

  • C:\Users\Admin\AppData\Local\71fd3dca-fec1-4c28-a517-404a7382ca3a\build2.exe

    Filesize

    418KB

    MD5

    bc47d3a0d4a74adc40b3a7035344becb

    SHA1

    dd80bbe70106b62ea58924173a364cc936a0b1f4

    SHA256

    06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

    SHA512

    4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

  • C:\Users\Admin\AppData\Local\71fd3dca-fec1-4c28-a517-404a7382ca3a\build2.exe

    Filesize

    418KB

    MD5

    bc47d3a0d4a74adc40b3a7035344becb

    SHA1

    dd80bbe70106b62ea58924173a364cc936a0b1f4

    SHA256

    06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

    SHA512

    4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

  • C:\Users\Admin\AppData\Local\71fd3dca-fec1-4c28-a517-404a7382ca3a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\71fd3dca-fec1-4c28-a517-404a7382ca3a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\c06e6492-3b2c-4a59-8333-aeb8ef1f0bce\file.exe

    Filesize

    659KB

    MD5

    2fcf7dd37acbf420c078ef520850af64

    SHA1

    677ef7f1033c5ae85d65ae7a0dee018834ead5ad

    SHA256

    37d72be6e06830d950e10af30dab0bcb1ad8f67828b56926108ccd3de7432322

    SHA512

    d96732cbb64e318531cb3c6554fe1cd21483400d97c98d0ddbaecb5545fbf76389ee85064a93bae1aa67efd812c3db164dea929faae447943b888c06fdb52ef4

  • 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/176-143-0x0000000000000000-mapping.dmp

  • memory/176-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/176-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/176-168-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/176-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/612-192-0x0000000000000000-mapping.dmp

  • memory/1448-139-0x0000000000000000-mapping.dmp

  • memory/2360-159-0x0000000000000000-mapping.dmp

  • memory/2560-153-0x0000000000000000-mapping.dmp

  • memory/2560-163-0x000000000067E000-0x00000000006A7000-memory.dmp

    Filesize

    164KB

  • memory/2560-166-0x00000000005E0000-0x0000000000627000-memory.dmp

    Filesize

    284KB

  • memory/3512-189-0x0000000000000000-mapping.dmp

  • memory/3844-190-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/3844-160-0x0000000000000000-mapping.dmp

  • memory/3844-161-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/3844-169-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3844-164-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/3844-165-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/3844-167-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/3940-156-0x0000000000000000-mapping.dmp

  • memory/4028-191-0x0000000000000000-mapping.dmp

  • memory/4080-195-0x0000000000000000-mapping.dmp

  • memory/4132-137-0x0000000002330000-0x000000000244B000-memory.dmp

    Filesize

    1.1MB

  • memory/4132-136-0x0000000002298000-0x0000000002329000-memory.dmp

    Filesize

    580KB

  • memory/4460-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4460-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4460-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4460-132-0x0000000000000000-mapping.dmp

  • memory/4460-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4460-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5060-141-0x0000000000000000-mapping.dmp

  • memory/5060-146-0x00000000022D6000-0x0000000002367000-memory.dmp

    Filesize

    580KB