Analysis

  • max time kernel
    148s
  • max time network
    127s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    31/03/2023, 12:35

General

  • Target

    fe5758e36675708c6e9d1a2f69aa0999db4fdfe1f76829e0b77ce8a275e0d884.exe

  • Size

    717KB

  • MD5

    14991cdb1c3b8d98b384a5172006d047

  • SHA1

    a48edf6d6b5a609a050b6c42fc537937332fc024

  • SHA256

    fe5758e36675708c6e9d1a2f69aa0999db4fdfe1f76829e0b77ce8a275e0d884

  • SHA512

    527d570d329004fe836a8683f01e90fd01e3b25fbab6e90688d667b79f5166fa9cb676b8907c781ef93a747deb47687f668ac90b67817ea71fd1c22ad6fbd2dc

  • SSDEEP

    12288:O5SEYaFR6sFEveg99YZ8x+AqweCsQeQqC2PaAT5HDft0p3FU6wAJHikk:KSSDIm+MOyQOP7T5B0c6wAJCkk

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .jycx

  • offline_id

    MEMHlobHgXqvmTWaMsLcwGZhDOd00bblO1yevst1

  • payload_url

    http://uaery.top/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-fkW8qLaCVQ 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: 0674JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.2

Botnet

5df88deb5dde677ba658b77ad5f60248

C2

https://steamcommunity.com/profiles/76561199489580435

https://t.me/tabootalks

Attributes
  • profile_id_v2

    5df88deb5dde677ba658b77ad5f60248

  • user_agent

    Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79

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
  • 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\fe5758e36675708c6e9d1a2f69aa0999db4fdfe1f76829e0b77ce8a275e0d884.exe
    "C:\Users\Admin\AppData\Local\Temp\fe5758e36675708c6e9d1a2f69aa0999db4fdfe1f76829e0b77ce8a275e0d884.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\fe5758e36675708c6e9d1a2f69aa0999db4fdfe1f76829e0b77ce8a275e0d884.exe
      "C:\Users\Admin\AppData\Local\Temp\fe5758e36675708c6e9d1a2f69aa0999db4fdfe1f76829e0b77ce8a275e0d884.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4396
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\b9574431-2006-4bd5-a64d-2eaa57a6b161" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:320
      • C:\Users\Admin\AppData\Local\Temp\fe5758e36675708c6e9d1a2f69aa0999db4fdfe1f76829e0b77ce8a275e0d884.exe
        "C:\Users\Admin\AppData\Local\Temp\fe5758e36675708c6e9d1a2f69aa0999db4fdfe1f76829e0b77ce8a275e0d884.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2780
        • C:\Users\Admin\AppData\Local\Temp\fe5758e36675708c6e9d1a2f69aa0999db4fdfe1f76829e0b77ce8a275e0d884.exe
          "C:\Users\Admin\AppData\Local\Temp\fe5758e36675708c6e9d1a2f69aa0999db4fdfe1f76829e0b77ce8a275e0d884.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4472
          • C:\Users\Admin\AppData\Local\ea39ea54-f0d6-4f37-b299-af9addb42a83\build2.exe
            "C:\Users\Admin\AppData\Local\ea39ea54-f0d6-4f37-b299-af9addb42a83\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2972
            • C:\Users\Admin\AppData\Local\ea39ea54-f0d6-4f37-b299-af9addb42a83\build2.exe
              "C:\Users\Admin\AppData\Local\ea39ea54-f0d6-4f37-b299-af9addb42a83\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:1904
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\ea39ea54-f0d6-4f37-b299-af9addb42a83\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:5108
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:5072
          • C:\Users\Admin\AppData\Local\ea39ea54-f0d6-4f37-b299-af9addb42a83\build3.exe
            "C:\Users\Admin\AppData\Local\ea39ea54-f0d6-4f37-b299-af9addb42a83\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3760
            • 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:2960
  • 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:5068
    • 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:4348

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2KB

          MD5

          ee7ad9d8f28e0558a94e667206e8a271

          SHA1

          b49a079526da92d55f2d1bc66659836c0f90a086

          SHA256

          9eeeef2cbd8192c6586ffa64114ad0c3e8e5ab3a73817e1044895517c6eba712

          SHA512

          0c1596e7b8e54e0cce8139a339c4c34f5f9391ce0b7051673abe7a43f174f292e0d3267b1ce1186247535941b416962b6fe63cb03855ddea254cf09fddad3223

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

          Filesize

          1KB

          MD5

          6a3b8331e801f083b403b0857ed8d574

          SHA1

          48d275731f1dbd0630d1ca55a1b05f149a011d1f

          SHA256

          98651a2da4a4613bc2a03c4128926fe6b05f1af8a7a21e1fedec75db013706a0

          SHA512

          7527b8857707c8822e4b7f5049ddc9b4c49933e68535690746d84b7f0187a10f36e874719bdb1bf3ba8b035568a7cbafd687b80c4621dc35552d73f7e497071d

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

          Filesize

          488B

          MD5

          154c4ff12fe8a69615e9ddf88c841466

          SHA1

          a2d6bf85057459bdd22a70e52818225f4f15a861

          SHA256

          c306717ca1df8a5b896d754a728c98f37cb712ad60bdd3765598d9c63caddd01

          SHA512

          41937605b6df31fb72fc3a7369f7c753065d3555b3f92390bb2ca0a042bcf58b32aaa540ccba5e25135872f580721459d85b323ed84b36edea4cb640c4a6f16f

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

          Filesize

          482B

          MD5

          7da7eadc1f963247ca2914dc400c9ea7

          SHA1

          83c6ffb2c54f49120a8ff45592cd34f7f4dc7960

          SHA256

          5a6e27bbbe6ee0beb1658a93fa61ede3d6db559b9bc3534caec03d7671be66c1

          SHA512

          cf3c55b79d7277dc1d09500b21263045d4512e3b9e146fcc4f44684ca77f2c0646ae3dd3593a63e89c0fdc8ed5c8e36da1e47fce7107c1344347109456143f28

        • C:\Users\Admin\AppData\Local\b9574431-2006-4bd5-a64d-2eaa57a6b161\fe5758e36675708c6e9d1a2f69aa0999db4fdfe1f76829e0b77ce8a275e0d884.exe

          Filesize

          717KB

          MD5

          14991cdb1c3b8d98b384a5172006d047

          SHA1

          a48edf6d6b5a609a050b6c42fc537937332fc024

          SHA256

          fe5758e36675708c6e9d1a2f69aa0999db4fdfe1f76829e0b77ce8a275e0d884

          SHA512

          527d570d329004fe836a8683f01e90fd01e3b25fbab6e90688d667b79f5166fa9cb676b8907c781ef93a747deb47687f668ac90b67817ea71fd1c22ad6fbd2dc

        • C:\Users\Admin\AppData\Local\ea39ea54-f0d6-4f37-b299-af9addb42a83\build2.exe

          Filesize

          416KB

          MD5

          aa18968e6cfbdc382ada6a3ed2852085

          SHA1

          4a41fa1a182916d5790aa2071106b3441d64468d

          SHA256

          c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb

          SHA512

          8ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845

        • C:\Users\Admin\AppData\Local\ea39ea54-f0d6-4f37-b299-af9addb42a83\build2.exe

          Filesize

          416KB

          MD5

          aa18968e6cfbdc382ada6a3ed2852085

          SHA1

          4a41fa1a182916d5790aa2071106b3441d64468d

          SHA256

          c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb

          SHA512

          8ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845

        • C:\Users\Admin\AppData\Local\ea39ea54-f0d6-4f37-b299-af9addb42a83\build2.exe

          Filesize

          416KB

          MD5

          aa18968e6cfbdc382ada6a3ed2852085

          SHA1

          4a41fa1a182916d5790aa2071106b3441d64468d

          SHA256

          c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb

          SHA512

          8ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845

        • C:\Users\Admin\AppData\Local\ea39ea54-f0d6-4f37-b299-af9addb42a83\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\ea39ea54-f0d6-4f37-b299-af9addb42a83\build3.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

        • 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/1904-166-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/1904-168-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/1904-247-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/1904-246-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/1904-245-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/1904-191-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/1904-180-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/1904-170-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/2040-123-0x00000000023D0000-0x00000000024EB000-memory.dmp

          Filesize

          1.1MB

        • memory/2972-169-0x0000000002DF0000-0x0000000002E47000-memory.dmp

          Filesize

          348KB

        • memory/4396-122-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4396-124-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4396-126-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4396-125-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4396-137-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4472-149-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4472-177-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4472-148-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4472-153-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4472-147-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4472-162-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4472-156-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4472-155-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4472-142-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4472-141-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB