Analysis

  • max time kernel
    143s
  • max time network
    128s
  • platform
    windows10-1703_x64
  • resource
    win10-20230703-en
  • resource tags

    arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23/08/2023, 17:02

General

  • Target

    0d26aaba67500352de3d23f703ae6323117750b78f70c46a244827a0781aa5a6.exe

  • Size

    756KB

  • MD5

    438c7532c1512ca743a216e69e41cf2c

  • SHA1

    6cde4385a73f7972464dec684a2a9f90826777ce

  • SHA256

    0d26aaba67500352de3d23f703ae6323117750b78f70c46a244827a0781aa5a6

  • SHA512

    0a5a5d3d944bf20609463b058fda999ea02273e801a8c9b6f42488bbf09b2a42cbf4299d0d7cf0bb3615177beb861c117278033dab04c6c7f0d26c75d4115935

  • SSDEEP

    12288:o6PUBXUJYB3FZsRohTfxMtmntWB9c33NE2LZKXqT7goI5Us:oq0kMbnZ5MMWB9cUqT7a5U

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .wztt

  • offline_id

    pGPY4MKNHaEeN9pLKNW37rI0mblzUZFtPsjZ8Ht1

  • 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-E3ktviSmlG 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: 0768zSjfr

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.3

Botnet

562ce294a991b18054802a17b24ce0f9

C2

https://t.me/buukcay

https://steamcommunity.com/profiles/76561199544211655

Attributes
  • profile_id_v2

    562ce294a991b18054802a17b24ce0f9

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
  • 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).

  • 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\0d26aaba67500352de3d23f703ae6323117750b78f70c46a244827a0781aa5a6.exe
    "C:\Users\Admin\AppData\Local\Temp\0d26aaba67500352de3d23f703ae6323117750b78f70c46a244827a0781aa5a6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3392
    • C:\Users\Admin\AppData\Local\Temp\0d26aaba67500352de3d23f703ae6323117750b78f70c46a244827a0781aa5a6.exe
      "C:\Users\Admin\AppData\Local\Temp\0d26aaba67500352de3d23f703ae6323117750b78f70c46a244827a0781aa5a6.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:424
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\171a7f26-33ce-4656-9afb-ea6d6e206f7c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:220
      • C:\Users\Admin\AppData\Local\Temp\0d26aaba67500352de3d23f703ae6323117750b78f70c46a244827a0781aa5a6.exe
        "C:\Users\Admin\AppData\Local\Temp\0d26aaba67500352de3d23f703ae6323117750b78f70c46a244827a0781aa5a6.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:308
        • C:\Users\Admin\AppData\Local\Temp\0d26aaba67500352de3d23f703ae6323117750b78f70c46a244827a0781aa5a6.exe
          "C:\Users\Admin\AppData\Local\Temp\0d26aaba67500352de3d23f703ae6323117750b78f70c46a244827a0781aa5a6.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2816
          • C:\Users\Admin\AppData\Local\88e24135-41bb-49d1-997b-8d826066f10d\build2.exe
            "C:\Users\Admin\AppData\Local\88e24135-41bb-49d1-997b-8d826066f10d\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:5072
            • C:\Users\Admin\AppData\Local\88e24135-41bb-49d1-997b-8d826066f10d\build2.exe
              "C:\Users\Admin\AppData\Local\88e24135-41bb-49d1-997b-8d826066f10d\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4120
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\88e24135-41bb-49d1-997b-8d826066f10d\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:2056
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:2156
          • C:\Users\Admin\AppData\Local\88e24135-41bb-49d1-997b-8d826066f10d\build3.exe
            "C:\Users\Admin\AppData\Local\88e24135-41bb-49d1-997b-8d826066f10d\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4476
            • 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:3608
  • 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:1092
    • 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:2324

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    2KB

    MD5

    4849ded5f45cec7e511d14847c702399

    SHA1

    c91f233dd80fbdbf3eec4917a1289b6ce94cb3ee

    SHA256

    2481d98926336d63129e6b28c64fd1beee1e411c5dccb5919027f8a01fe5dd51

    SHA512

    5932d462f714fa61c80351bad47af51601985450627afa1fb938f9187168dd9ceee993716c0a3fa26b82ef244c9ca0794b7bf49dee238c738039c5c1f6c4acab

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

    Filesize

    1KB

    MD5

    1f94d4d280ff409d554abab350d17ef1

    SHA1

    6df310f84e1b99164310b7324996b71a3cb3fe24

    SHA256

    047a1f77bd04d3b566fe9f71e653e788ba99ecfa954cd169fde5b70517350a11

    SHA512

    25e67e76e011e6cb6bfd4654daef6a7c30d67db62006519549b209b3e0f6714437e08ce5ff2f26a8da54e9f0b37482ceb1ad0c2e15ee7cdb4d79347d7e0309fd

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

    Filesize

    488B

    MD5

    64f0ed90a17f481c2e46ba5f5c2f1df4

    SHA1

    d13de60bc21f38e47e003b3e3a376bedf24ff8fa

    SHA256

    74306aea6ceebd59a16e81fd5015d834280ee62d24d061c99be7850504935ea3

    SHA512

    9676ae2dc326b6a6a93c64518183467f138f7cb355cee1c9a56e6636f6b22c2ec756672e18bbd5182f938a62855613009857d4620a607d6b13e46742ab5e0ae5

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

    Filesize

    482B

    MD5

    b815ae3b5bd79f07c5137c587e45fd98

    SHA1

    d7c09050338e31058c5d9c563d41a06c0be2645a

    SHA256

    3db7f693a00a3cf5b0995fe6e8e151dd162b3b5dda5b0a3b8eab57120205b995

    SHA512

    b08d5d10668a1c2e506f2c4986cf98825567cda1334e4f9e8e5d88e7f433b53439d2156ff3433425ff9758b857dd629dc813a655507de6e9e1d1be5bf52ddc79

  • C:\Users\Admin\AppData\Local\171a7f26-33ce-4656-9afb-ea6d6e206f7c\0d26aaba67500352de3d23f703ae6323117750b78f70c46a244827a0781aa5a6.exe

    Filesize

    756KB

    MD5

    438c7532c1512ca743a216e69e41cf2c

    SHA1

    6cde4385a73f7972464dec684a2a9f90826777ce

    SHA256

    0d26aaba67500352de3d23f703ae6323117750b78f70c46a244827a0781aa5a6

    SHA512

    0a5a5d3d944bf20609463b058fda999ea02273e801a8c9b6f42488bbf09b2a42cbf4299d0d7cf0bb3615177beb861c117278033dab04c6c7f0d26c75d4115935

  • C:\Users\Admin\AppData\Local\88e24135-41bb-49d1-997b-8d826066f10d\build2.exe

    Filesize

    361KB

    MD5

    9545d2c1b9c67ae6c7536fa637f6e8dc

    SHA1

    b2654f52dfde5ae8791588d224fe707784a3c6fd

    SHA256

    44f9e81a2e056d24c0da23b8be38d37eceefe06e5bc6dbf67df2b18caf6223b8

    SHA512

    6eef0a2feec33e8bf1a6ede2fc62ee531299ce49759df07a463e8c5476617184d9b8e5a21fbb4b6641131a7130474f39800839c3d0127ba84b8f5a7b3fdffa4c

  • C:\Users\Admin\AppData\Local\88e24135-41bb-49d1-997b-8d826066f10d\build2.exe

    Filesize

    361KB

    MD5

    9545d2c1b9c67ae6c7536fa637f6e8dc

    SHA1

    b2654f52dfde5ae8791588d224fe707784a3c6fd

    SHA256

    44f9e81a2e056d24c0da23b8be38d37eceefe06e5bc6dbf67df2b18caf6223b8

    SHA512

    6eef0a2feec33e8bf1a6ede2fc62ee531299ce49759df07a463e8c5476617184d9b8e5a21fbb4b6641131a7130474f39800839c3d0127ba84b8f5a7b3fdffa4c

  • C:\Users\Admin\AppData\Local\88e24135-41bb-49d1-997b-8d826066f10d\build2.exe

    Filesize

    361KB

    MD5

    9545d2c1b9c67ae6c7536fa637f6e8dc

    SHA1

    b2654f52dfde5ae8791588d224fe707784a3c6fd

    SHA256

    44f9e81a2e056d24c0da23b8be38d37eceefe06e5bc6dbf67df2b18caf6223b8

    SHA512

    6eef0a2feec33e8bf1a6ede2fc62ee531299ce49759df07a463e8c5476617184d9b8e5a21fbb4b6641131a7130474f39800839c3d0127ba84b8f5a7b3fdffa4c

  • C:\Users\Admin\AppData\Local\88e24135-41bb-49d1-997b-8d826066f10d\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\88e24135-41bb-49d1-997b-8d826066f10d\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/308-19-0x0000000003FA0000-0x0000000004032000-memory.dmp

    Filesize

    584KB

  • memory/424-17-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/424-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/424-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/424-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/424-2-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2816-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2816-28-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2816-36-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2816-35-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2816-21-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2816-33-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2816-58-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2816-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2816-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2816-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3392-1-0x00000000041F0000-0x000000000430B000-memory.dmp

    Filesize

    1.1MB

  • memory/3392-4-0x00000000040F0000-0x0000000004182000-memory.dmp

    Filesize

    584KB

  • memory/3392-0-0x00000000040F0000-0x0000000004182000-memory.dmp

    Filesize

    584KB

  • memory/4120-52-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/4120-51-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/4120-49-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/4120-73-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4120-47-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/4120-110-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/4120-111-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/4120-112-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/5072-50-0x0000000001960000-0x0000000001991000-memory.dmp

    Filesize

    196KB

  • memory/5072-46-0x00000000019A0000-0x00000000019FB000-memory.dmp

    Filesize

    364KB

  • memory/5072-45-0x0000000001960000-0x0000000001991000-memory.dmp

    Filesize

    196KB