Analysis

  • max time kernel
    295s
  • max time network
    179s
  • platform
    windows10-1703_x64
  • resource
    win10-20230621-en
  • resource tags

    arch:x64arch:x86image:win10-20230621-enlocale:en-usos:windows10-1703-x64system
  • submitted
    30/06/2023, 05:03

General

  • Target

    71b48d5f716e1c5237cc0c7a9ba4ee00a4b1a778180fedb6f4c2bdb9b030e657.exe

  • Size

    791KB

  • MD5

    40b203851c4c24adc848bc6f1f3e7cc2

  • SHA1

    0dc8690801e54dd9bff5260f75dbd4bdad2da8ac

  • SHA256

    71b48d5f716e1c5237cc0c7a9ba4ee00a4b1a778180fedb6f4c2bdb9b030e657

  • SHA512

    68ab0281b6814fce332377493dead886e136137eda45e3c095357e90bf208beddd19d187157a4347c8307a7b64c258eebe5acd2d4918354bf3f756b80df77964

  • SSDEEP

    12288:jeUxbbKizNacYwoWXgyr2iE8V+48CZw8RdX7Agc4iCzJuVxiE:RxCizwcQyBEaiC9Lz8QE

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/raud/get.php

Attributes
  • extension

    .agvv

  • offline_id

    IGjpno8dwAKJpBjbvlsxfyQXyNoBoo3dXUtMk6t1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.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-3OsGArf4HD 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: 0737JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.5

Botnet

75b38583a079a9212c1fa894fd1b945f

C2

https://steamcommunity.com/profiles/76561199520592470

https://t.me/motafan

Attributes
  • profile_id_v2

    75b38583a079a9212c1fa894fd1b945f

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/111.0

Signatures

  • Detected Djvu ransomware 16 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
  • 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
  • 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).

  • 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 8 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\71b48d5f716e1c5237cc0c7a9ba4ee00a4b1a778180fedb6f4c2bdb9b030e657.exe
    "C:\Users\Admin\AppData\Local\Temp\71b48d5f716e1c5237cc0c7a9ba4ee00a4b1a778180fedb6f4c2bdb9b030e657.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1824
    • C:\Users\Admin\AppData\Local\Temp\71b48d5f716e1c5237cc0c7a9ba4ee00a4b1a778180fedb6f4c2bdb9b030e657.exe
      "C:\Users\Admin\AppData\Local\Temp\71b48d5f716e1c5237cc0c7a9ba4ee00a4b1a778180fedb6f4c2bdb9b030e657.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\bb721dee-020e-4358-82e3-9278469b4507" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2648
      • C:\Users\Admin\AppData\Local\Temp\71b48d5f716e1c5237cc0c7a9ba4ee00a4b1a778180fedb6f4c2bdb9b030e657.exe
        "C:\Users\Admin\AppData\Local\Temp\71b48d5f716e1c5237cc0c7a9ba4ee00a4b1a778180fedb6f4c2bdb9b030e657.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3044
        • C:\Users\Admin\AppData\Local\Temp\71b48d5f716e1c5237cc0c7a9ba4ee00a4b1a778180fedb6f4c2bdb9b030e657.exe
          "C:\Users\Admin\AppData\Local\Temp\71b48d5f716e1c5237cc0c7a9ba4ee00a4b1a778180fedb6f4c2bdb9b030e657.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3872
          • C:\Users\Admin\AppData\Local\a5b210dd-3b9a-4836-983b-e3cf92444afd\build2.exe
            "C:\Users\Admin\AppData\Local\a5b210dd-3b9a-4836-983b-e3cf92444afd\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2700
            • C:\Users\Admin\AppData\Local\a5b210dd-3b9a-4836-983b-e3cf92444afd\build2.exe
              "C:\Users\Admin\AppData\Local\a5b210dd-3b9a-4836-983b-e3cf92444afd\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:3892
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\a5b210dd-3b9a-4836-983b-e3cf92444afd\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4964
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:3476
          • C:\Users\Admin\AppData\Local\a5b210dd-3b9a-4836-983b-e3cf92444afd\build3.exe
            "C:\Users\Admin\AppData\Local\a5b210dd-3b9a-4836-983b-e3cf92444afd\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4820
            • 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:4740
  • 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:4872
    • 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:4288

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    12cf3f7c5b0a343d46a960e36374432e

    SHA1

    c4385cb8e91123bbcee01892433bc8b0c3377167

    SHA256

    6dc7d2f12c7ed75825418011d67ecc0abb35ac3a65dc4582b9ecf8ee061bf901

    SHA512

    7c783a5771b810ff5925d4de6dbec8fd89ff8622cc13da40afc7df9f3f369f9e835b9b0ee84b7dcec0c8253e6c16371a36405e50ec214291944d2ddb36a036c2

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

    Filesize

    1KB

    MD5

    1f741b0c2176fb8677c5ed12d315afde

    SHA1

    fc09a6bbb2e86a5f5751c026fc400391b977232e

    SHA256

    6cf6b1b5c22df0dfa38b04c358821cacc893c22e18e1781d1c85e70933a7e370

    SHA512

    7c76250ce7215ac900532ff6d7140251af587724c161d8163bfe8a32ecd21d93c8c6401560ce49c9b91f8fb40619b842a0f574599ef50422c57de52c0ae0e285

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

    Filesize

    488B

    MD5

    98a95672e3ce390b3fa29ae9e68332f6

    SHA1

    a4fdce8dda56fabb9e7ac9d9eda14b3260701633

    SHA256

    36b4137b0f57ec74f1333522af8851c94a049ff4261d6030681cec5376125eb6

    SHA512

    0dcca297e27b7a1d4caa2fcbfaf0f537be65ec52f11ff4f517316b26e31d61331b35b966cd4e47b9584845e69da8088e7a11e9096da52b64f4b3cb077bdff6ea

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

    Filesize

    482B

    MD5

    6569b696905d87373f01e33b2a4088a4

    SHA1

    bfc5ec8cfe4b39320562e13703afaca503cefedb

    SHA256

    f3208094dd4acbda99ec801cce4d2349b7c8a39270b2a722cfb186f6782929b3

    SHA512

    ec8a3848283b0c54fc1d28f1ef86cb03114dd92053d5fedc41b1a14b13176db19a0e0a16805c88edbfe3f84374440a6148c9d49fbfcb622c66a17f96d6eab323

  • C:\Users\Admin\AppData\Local\a5b210dd-3b9a-4836-983b-e3cf92444afd\build2.exe

    Filesize

    330KB

    MD5

    f11de7628c58b4cd0bc3647984edc296

    SHA1

    5aa2db4791acb3f007ebadf6cad9ff9c9ed23ec7

    SHA256

    e356f807c297edf59ba7b0e1e0eb2a2186cc02246ad4bbe8d6fa42c7383b46c7

    SHA512

    cc9dcbd92ca83840b33dd2cceffa446bc5b2052ba14246750233cf10ae0b21b7ae3e30192fe5a3ce186d786c8ecbe2d59a80739adae843644f1b56ac16d03d59

  • C:\Users\Admin\AppData\Local\a5b210dd-3b9a-4836-983b-e3cf92444afd\build2.exe

    Filesize

    330KB

    MD5

    f11de7628c58b4cd0bc3647984edc296

    SHA1

    5aa2db4791acb3f007ebadf6cad9ff9c9ed23ec7

    SHA256

    e356f807c297edf59ba7b0e1e0eb2a2186cc02246ad4bbe8d6fa42c7383b46c7

    SHA512

    cc9dcbd92ca83840b33dd2cceffa446bc5b2052ba14246750233cf10ae0b21b7ae3e30192fe5a3ce186d786c8ecbe2d59a80739adae843644f1b56ac16d03d59

  • C:\Users\Admin\AppData\Local\a5b210dd-3b9a-4836-983b-e3cf92444afd\build2.exe

    Filesize

    330KB

    MD5

    f11de7628c58b4cd0bc3647984edc296

    SHA1

    5aa2db4791acb3f007ebadf6cad9ff9c9ed23ec7

    SHA256

    e356f807c297edf59ba7b0e1e0eb2a2186cc02246ad4bbe8d6fa42c7383b46c7

    SHA512

    cc9dcbd92ca83840b33dd2cceffa446bc5b2052ba14246750233cf10ae0b21b7ae3e30192fe5a3ce186d786c8ecbe2d59a80739adae843644f1b56ac16d03d59

  • C:\Users\Admin\AppData\Local\a5b210dd-3b9a-4836-983b-e3cf92444afd\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\a5b210dd-3b9a-4836-983b-e3cf92444afd\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\bb721dee-020e-4358-82e3-9278469b4507\71b48d5f716e1c5237cc0c7a9ba4ee00a4b1a778180fedb6f4c2bdb9b030e657.exe

    Filesize

    791KB

    MD5

    40b203851c4c24adc848bc6f1f3e7cc2

    SHA1

    0dc8690801e54dd9bff5260f75dbd4bdad2da8ac

    SHA256

    71b48d5f716e1c5237cc0c7a9ba4ee00a4b1a778180fedb6f4c2bdb9b030e657

    SHA512

    68ab0281b6814fce332377493dead886e136137eda45e3c095357e90bf208beddd19d187157a4347c8307a7b64c258eebe5acd2d4918354bf3f756b80df77964

  • 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

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/1824-124-0x00000000035B0000-0x00000000036CB000-memory.dmp

    Filesize

    1.1MB

  • memory/1824-121-0x00000000034A0000-0x0000000003531000-memory.dmp

    Filesize

    580KB

  • memory/1964-123-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-122-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-125-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1964-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2700-168-0x0000000000690000-0x00000000006F2000-memory.dmp

    Filesize

    392KB

  • memory/3872-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3872-189-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3872-141-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3872-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3872-181-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3872-156-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3872-155-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3872-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3872-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3872-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3892-191-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3892-184-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/3892-169-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/3892-228-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/3892-229-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/3892-231-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/3892-167-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/3892-165-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB