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Analysis

  • max time kernel
    89s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/09/2022, 05:55

General

  • Target

    369990510c13d8d3af0ff0dd13076f39f0be0a87d77e8ff57fb1dd3c5f483541.exe

  • Size

    810KB

  • MD5

    bb125d69b9ed5f27065759830ab13e17

  • SHA1

    7404dd5449fff2b6b488c4566e5f1c2741045145

  • SHA256

    369990510c13d8d3af0ff0dd13076f39f0be0a87d77e8ff57fb1dd3c5f483541

  • SHA512

    3a6a0c1df824e0f9c6bb5d4a4b2262aa2a3992f255fc52b3799afa8a4a1f1feb6bca13ad4c1fbd00fcd07cdc52bd4aeeecfd0164481c4e3c06aa50bbbe00cb4f

  • SSDEEP

    12288:Bo8mJGeqHm+G76QUlYwy9RefaMs+FYyt2Q1RrmaTx3kRAvIPkWPRk:Bo8IaGjEYwkcf06Yyt26TVkRAwkSR

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .oflg

  • 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: 0566Jhyjd

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\369990510c13d8d3af0ff0dd13076f39f0be0a87d77e8ff57fb1dd3c5f483541.exe
    "C:\Users\Admin\AppData\Local\Temp\369990510c13d8d3af0ff0dd13076f39f0be0a87d77e8ff57fb1dd3c5f483541.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1292
    • C:\Users\Admin\AppData\Local\Temp\369990510c13d8d3af0ff0dd13076f39f0be0a87d77e8ff57fb1dd3c5f483541.exe
      "C:\Users\Admin\AppData\Local\Temp\369990510c13d8d3af0ff0dd13076f39f0be0a87d77e8ff57fb1dd3c5f483541.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1200
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\e9c758b4-3e6b-4cb4-87c6-3c33d01edf3a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1836
      • C:\Users\Admin\AppData\Local\Temp\369990510c13d8d3af0ff0dd13076f39f0be0a87d77e8ff57fb1dd3c5f483541.exe
        "C:\Users\Admin\AppData\Local\Temp\369990510c13d8d3af0ff0dd13076f39f0be0a87d77e8ff57fb1dd3c5f483541.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1548
        • C:\Users\Admin\AppData\Local\Temp\369990510c13d8d3af0ff0dd13076f39f0be0a87d77e8ff57fb1dd3c5f483541.exe
          "C:\Users\Admin\AppData\Local\Temp\369990510c13d8d3af0ff0dd13076f39f0be0a87d77e8ff57fb1dd3c5f483541.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3584
          • C:\Users\Admin\AppData\Local\c599e829-d022-4c8c-9d93-b2882c746482\build2.exe
            "C:\Users\Admin\AppData\Local\c599e829-d022-4c8c-9d93-b2882c746482\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4704
            • C:\Users\Admin\AppData\Local\c599e829-d022-4c8c-9d93-b2882c746482\build2.exe
              "C:\Users\Admin\AppData\Local\c599e829-d022-4c8c-9d93-b2882c746482\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:4952
              • 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\c599e829-d022-4c8c-9d93-b2882c746482\build2.exe" & del C:\PrograData\*.dll & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:764
                • C:\Windows\SysWOW64\taskkill.exe
                  taskkill /im build2.exe /f
                  8⤵
                  • Kills process with taskkill
                  • Suspicious use of AdjustPrivilegeToken
                  PID:908
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4948
          • C:\Users\Admin\AppData\Local\c599e829-d022-4c8c-9d93-b2882c746482\build3.exe
            "C:\Users\Admin\AppData\Local\c599e829-d022-4c8c-9d93-b2882c746482\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3640
            • 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:4732
  • 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:2084
    • 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:2068

Network

MITRE ATT&CK Enterprise v6

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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

    edcd4c783b2b2c906602519bd8f697f4

    SHA1

    fc56fded4065d6960c6507cac4264dfd2b038004

    SHA256

    367e0ac4e24f1d1530de05a6abf81d6b572c0546b5aa134c246fa1514582fd90

    SHA512

    cb23a82c06211121e39ed0dbec5928b1a85aca7c25f2c060d609350e3a94bf82e9159a2a4d5e67295fc29bac22c95d525ea2461a0000d24c6c4cb630520f68d0

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

    Filesize

    488B

    MD5

    7302fd30fb45accbaf0e8e4784d88863

    SHA1

    72ba8f3bdcd0606c31510eeaffd8ca89c74cf933

    SHA256

    1d559042a9ec072ab5234d655a1b69c2bdf6c331a987375d7c0a91cb285d3ca4

    SHA512

    7c57ddb73c134e52e0fc51318cb0743f23c0741365d46d4ce14e04fdffe07c62899f5bb74a702deca1aac60fea6e6fd4020859f75832747c2e22f19bc5c21d19

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

    Filesize

    482B

    MD5

    d89dbaca47a40a9b88387f2880f86742

    SHA1

    6ccc84549202d8b8a7f463658e7ed8be192b02e2

    SHA256

    702a39a4e0ef831357aaf3c079368092d6dd27aa2f6e3ae9e08518d559d87a36

    SHA512

    37219f560fbbc9fcc236772aede49373d5daa8c28d276d589dbe959ba0e6166ff348aa8fd90c600f283df5ae7d52df5ce95b69791831cd6f4b923f94205af02b

  • C:\Users\Admin\AppData\Local\c599e829-d022-4c8c-9d93-b2882c746482\build2.exe

    Filesize

    418KB

    MD5

    bc47d3a0d4a74adc40b3a7035344becb

    SHA1

    dd80bbe70106b62ea58924173a364cc936a0b1f4

    SHA256

    06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

    SHA512

    4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

  • C:\Users\Admin\AppData\Local\c599e829-d022-4c8c-9d93-b2882c746482\build2.exe

    Filesize

    418KB

    MD5

    bc47d3a0d4a74adc40b3a7035344becb

    SHA1

    dd80bbe70106b62ea58924173a364cc936a0b1f4

    SHA256

    06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

    SHA512

    4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

  • C:\Users\Admin\AppData\Local\c599e829-d022-4c8c-9d93-b2882c746482\build2.exe

    Filesize

    418KB

    MD5

    bc47d3a0d4a74adc40b3a7035344becb

    SHA1

    dd80bbe70106b62ea58924173a364cc936a0b1f4

    SHA256

    06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

    SHA512

    4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

  • C:\Users\Admin\AppData\Local\c599e829-d022-4c8c-9d93-b2882c746482\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\c599e829-d022-4c8c-9d93-b2882c746482\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\e9c758b4-3e6b-4cb4-87c6-3c33d01edf3a\369990510c13d8d3af0ff0dd13076f39f0be0a87d77e8ff57fb1dd3c5f483541.exe

    Filesize

    810KB

    MD5

    bb125d69b9ed5f27065759830ab13e17

    SHA1

    7404dd5449fff2b6b488c4566e5f1c2741045145

    SHA256

    369990510c13d8d3af0ff0dd13076f39f0be0a87d77e8ff57fb1dd3c5f483541

    SHA512

    3a6a0c1df824e0f9c6bb5d4a4b2262aa2a3992f255fc52b3799afa8a4a1f1feb6bca13ad4c1fbd00fcd07cdc52bd4aeeecfd0164481c4e3c06aa50bbbe00cb4f

  • 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/1200-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1200-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1200-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1200-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1200-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1292-136-0x0000000002280000-0x000000000239B000-memory.dmp

    Filesize

    1.1MB

  • memory/1292-135-0x0000000000665000-0x00000000006F7000-memory.dmp

    Filesize

    584KB

  • memory/1548-146-0x00000000005E7000-0x0000000000679000-memory.dmp

    Filesize

    584KB

  • memory/3584-188-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3584-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3584-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3584-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4704-165-0x00000000006FE000-0x0000000000727000-memory.dmp

    Filesize

    164KB

  • memory/4704-166-0x0000000001FA0000-0x0000000001FE7000-memory.dmp

    Filesize

    284KB

  • memory/4952-164-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/4952-190-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/4952-163-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/4952-161-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/4952-168-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4952-167-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB