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Analysis

  • max time kernel
    101s
  • max time network
    140s
  • 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, 05:53

General

  • Target

    file.exe

  • Size

    662KB

  • MD5

    00405883bad46abd502a8346b87573d9

  • SHA1

    d33e4a06498d047efa8409a8381b129d9c1d697e

  • SHA256

    1f876f7922c65d08076d4a8ddd17ea210b70e2e68b7261e780a60a4ae638c5d0

  • SHA512

    6b8715ab4b6be01ce24bd3e9ffc39c118caf3987d56f98d9e78c7366c286eb382c605b601dc12211c01b41c567cb8619bbf058a7f2e27497dfe3308ebf5ab74d

  • SSDEEP

    12288:ZfA0fBtQ9FafnGFPKR4T8fL1miKNRyEt3VBxcgccFxHJbFdUnenrJScW2vFoiwc:hA0fBtQ2GFPEoiqRxVBxFcExpbFinYrB

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.

  • Program crash 1 IoCs
  • 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:5056
    • 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:5088
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\8e32c982-cbc0-4586-94f4-c0878f00e991" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:812
      • 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:4804
        • 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:2064
          • C:\Users\Admin\AppData\Local\34e9fe91-302c-4d0b-8c6f-4a734ddbf253\build2.exe
            "C:\Users\Admin\AppData\Local\34e9fe91-302c-4d0b-8c6f-4a734ddbf253\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4572
            • C:\Users\Admin\AppData\Local\34e9fe91-302c-4d0b-8c6f-4a734ddbf253\build2.exe
              "C:\Users\Admin\AppData\Local\34e9fe91-302c-4d0b-8c6f-4a734ddbf253\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:892
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\34e9fe91-302c-4d0b-8c6f-4a734ddbf253\build2.exe" & del C:\PrograData\*.dll & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:3804
                • C:\Windows\SysWOW64\taskkill.exe
                  taskkill /im build2.exe /f
                  8⤵
                  • Kills process with taskkill
                  • Suspicious use of AdjustPrivilegeToken
                  PID:5104
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4484
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 892 -s 1988
                7⤵
                • Program crash
                PID:4776
          • C:\Users\Admin\AppData\Local\34e9fe91-302c-4d0b-8c6f-4a734ddbf253\build3.exe
            "C:\Users\Admin\AppData\Local\34e9fe91-302c-4d0b-8c6f-4a734ddbf253\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3440
            • 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:3228
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 892 -ip 892
    1⤵
      PID:4024
    • 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:628
      • 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:1152

    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

      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

      eb8af3e7378660ccc68861be9ba2dce1

      SHA1

      66b4de28271519799ddff632a10e6bff8899a0ff

      SHA256

      b336545595cc13b15ae3e3c2eee21bd75add9b929ea1b994e0cd136ab3917b7c

      SHA512

      156a86f767082f6765e1810222c52a943ed8f24c76e1147fa6c2fb4102dba70150520d14068425bdde4987a273d099b4c974864fc393e8445a18fd708fa514c3

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

      Filesize

      482B

      MD5

      e5336f33bfef78e72311198eea553961

      SHA1

      705e2addebf5e5a15cb4c33efd6f7908a0400cd3

      SHA256

      8f6888611d8c9e568d813084ccff8666bce2ea5a50c38c2cffbb9fd0314383cb

      SHA512

      3ae3a92bcd8a72031e3e021ee84c930fe5523ff37bd68c257b6c296f72920a2d0e5c85d3dfa15f3c695e169be3648a7b3ab13e3f7daf1e6cc6b19ad7b026eabe

    • C:\Users\Admin\AppData\Local\34e9fe91-302c-4d0b-8c6f-4a734ddbf253\build2.exe

      Filesize

      418KB

      MD5

      bc47d3a0d4a74adc40b3a7035344becb

      SHA1

      dd80bbe70106b62ea58924173a364cc936a0b1f4

      SHA256

      06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

      SHA512

      4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

    • C:\Users\Admin\AppData\Local\34e9fe91-302c-4d0b-8c6f-4a734ddbf253\build2.exe

      Filesize

      418KB

      MD5

      bc47d3a0d4a74adc40b3a7035344becb

      SHA1

      dd80bbe70106b62ea58924173a364cc936a0b1f4

      SHA256

      06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

      SHA512

      4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

    • C:\Users\Admin\AppData\Local\34e9fe91-302c-4d0b-8c6f-4a734ddbf253\build2.exe

      Filesize

      418KB

      MD5

      bc47d3a0d4a74adc40b3a7035344becb

      SHA1

      dd80bbe70106b62ea58924173a364cc936a0b1f4

      SHA256

      06d1366df3628a010416384f7c77c493ac35f13ee05e010751708d681ebe5169

      SHA512

      4a4ef35c5fcbfc5a6b86dd6235f8b1b4f048ee5b5bd74fd9173a65cd450ec0f58fcf74f5fd2e58dd5dee486c0e41c2523cd6d7528d56fc2627fbdf8b598a29e4

    • C:\Users\Admin\AppData\Local\34e9fe91-302c-4d0b-8c6f-4a734ddbf253\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\34e9fe91-302c-4d0b-8c6f-4a734ddbf253\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\8e32c982-cbc0-4586-94f4-c0878f00e991\file.exe

      Filesize

      662KB

      MD5

      00405883bad46abd502a8346b87573d9

      SHA1

      d33e4a06498d047efa8409a8381b129d9c1d697e

      SHA256

      1f876f7922c65d08076d4a8ddd17ea210b70e2e68b7261e780a60a4ae638c5d0

      SHA512

      6b8715ab4b6be01ce24bd3e9ffc39c118caf3987d56f98d9e78c7366c286eb382c605b601dc12211c01b41c567cb8619bbf058a7f2e27497dfe3308ebf5ab74d

    • 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/892-167-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/892-191-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/892-168-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/892-166-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/892-164-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/892-162-0x0000000000400000-0x000000000045B000-memory.dmp

      Filesize

      364KB

    • memory/2064-188-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2064-147-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2064-145-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2064-152-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4572-165-0x0000000002090000-0x00000000020D7000-memory.dmp

      Filesize

      284KB

    • memory/4804-146-0x00000000022A4000-0x0000000002336000-memory.dmp

      Filesize

      584KB

    • memory/5056-136-0x0000000002450000-0x000000000256B000-memory.dmp

      Filesize

      1.1MB

    • memory/5056-135-0x00000000023BB000-0x000000000244D000-memory.dmp

      Filesize

      584KB

    • memory/5088-137-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5088-142-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5088-134-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5088-133-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/5088-138-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB