Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230831-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-09-2023 19:52

General

  • Target

    JC_e67cfe4c756f3efa4fc4399e6797b04683b8abbb321a9b69a5619498b63aabda.exe

  • Size

    777KB

  • MD5

    e3c4b0b0a9eaca5786b82e3edd42646a

  • SHA1

    695bf67b0e586211b96a6f4e657430e5cf1d959a

  • SHA256

    e67cfe4c756f3efa4fc4399e6797b04683b8abbb321a9b69a5619498b63aabda

  • SHA512

    f5e6ac106ee3c0da7b9df4949c4abc727474039b15083f8eb3e76c4aa1c00ed2d8d256d21fba759258c601c819d5c0aa0915d2d7c8b4f399ef09835c449d407f

  • SSDEEP

    12288:6zNlWw1UxdIfnygZsaapx0K+vkUGBpOSScTOgNpKar3yc4k0OEQcvfaZrkZ4xvQ6:6zNlXidIfmapK+v8jN/J5QQcXoU4xS2

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

5.4

Botnet

25f5344bfcb62e75b7946c3a681aec54

C2

https://t.me/vogogor

https://steamcommunity.com/profiles/76561199545993403

Attributes
  • profile_id_v2

    25f5344bfcb62e75b7946c3a681aec54

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.2.13 (KHTML, like Gecko) Version/16.5.2 Safari/605.2.13

Signatures

  • Detected Djvu ransomware 18 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
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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).

  • 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.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JC_e67cfe4c756f3efa4fc4399e6797b04683b8abbb321a9b69a5619498b63aabda.exe
    "C:\Users\Admin\AppData\Local\Temp\JC_e67cfe4c756f3efa4fc4399e6797b04683b8abbb321a9b69a5619498b63aabda.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2176
    • C:\Users\Admin\AppData\Local\Temp\JC_e67cfe4c756f3efa4fc4399e6797b04683b8abbb321a9b69a5619498b63aabda.exe
      "C:\Users\Admin\AppData\Local\Temp\JC_e67cfe4c756f3efa4fc4399e6797b04683b8abbb321a9b69a5619498b63aabda.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2512
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\7530bb04-0f76-4bff-afbe-8c0f70f3b32a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4580
      • C:\Users\Admin\AppData\Local\Temp\JC_e67cfe4c756f3efa4fc4399e6797b04683b8abbb321a9b69a5619498b63aabda.exe
        "C:\Users\Admin\AppData\Local\Temp\JC_e67cfe4c756f3efa4fc4399e6797b04683b8abbb321a9b69a5619498b63aabda.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1576
        • C:\Users\Admin\AppData\Local\Temp\JC_e67cfe4c756f3efa4fc4399e6797b04683b8abbb321a9b69a5619498b63aabda.exe
          "C:\Users\Admin\AppData\Local\Temp\JC_e67cfe4c756f3efa4fc4399e6797b04683b8abbb321a9b69a5619498b63aabda.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:784
          • C:\Users\Admin\AppData\Local\aa44e77c-e7e6-4af8-8230-4b260eb19c9b\build2.exe
            "C:\Users\Admin\AppData\Local\aa44e77c-e7e6-4af8-8230-4b260eb19c9b\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3216
            • C:\Users\Admin\AppData\Local\aa44e77c-e7e6-4af8-8230-4b260eb19c9b\build2.exe
              "C:\Users\Admin\AppData\Local\aa44e77c-e7e6-4af8-8230-4b260eb19c9b\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:2044
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2044 -s 1848
                7⤵
                • Program crash
                PID:2200
          • C:\Users\Admin\AppData\Local\aa44e77c-e7e6-4af8-8230-4b260eb19c9b\build3.exe
            "C:\Users\Admin\AppData\Local\aa44e77c-e7e6-4af8-8230-4b260eb19c9b\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4860
            • 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:3812
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2044 -ip 2044
    1⤵
      PID:3336
    • 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:4416
      • 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:4744

    Network

    MITRE ATT&CK Enterprise v15

    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

      d1c479a62d7c8b0edbf62031118e27cd

      SHA1

      e64e22a92ec405d0e70e6597f73e2ba6753641b6

      SHA256

      c1b2441a284551a05854dcb105aa38dfb9e144717f622bc0456a8d38c7c4cb02

      SHA512

      19917db8f27aaf94d283c0689780ca4c23b0bce793ca52076ea0041b6cc054bf254b3a26ac524f5c434311e40116367396d2cb978a162b2ba1afd756467cd346

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

      Filesize

      1KB

      MD5

      137e0b4840f8125ba9ba35f5e35a756e

      SHA1

      d0b462994fcea1803b01b516c97fe2c93f59f934

      SHA256

      f26683ff85626d7ef4137cebe2d9d4cb0dfcb4b7d80bc1348e3fbac919fa04d9

      SHA512

      660b7cf0fbc09d0fc3071e502545933f094d2f6462904db07d3810a3cca5ef30dba5742d67634c3d63da748e944cc375369fe1afb4ae13d073f88724dedc5ec5

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

      Filesize

      488B

      MD5

      528e8f08615404d63326d0caa07ffde9

      SHA1

      5bd2ce2b75d91c252e0ed44c37c7bf1966ef7e21

      SHA256

      090720d5f69c1da4c08ac9e3de826177d09773f6d1f6c5d1ce18aafee164ea02

      SHA512

      b4ea20b133c85d58007eb5b3a495544f8c2d08ef695194a115964b835ad0d925a32646ac38134cf8ca5457d7fd88955c72227f62381a7ca90d76e6d9e817a881

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

      Filesize

      482B

      MD5

      abf09c4c9d594b964abcd0c62d68a12c

      SHA1

      79073f312e471d79262304f794d70e9776e0cc1c

      SHA256

      16c2f37adc580e974de2254c7e93f4c7bbb9a45ad8b0b6dd46b350eaaf626338

      SHA512

      48d800339b01fac190732a292d1256ba1965356605802d0f4b76387b2f224611b9adf0b306ab3f0ae242d37ae0eceb9875d2a0408cb9b531b0fe25b086af724a

    • C:\Users\Admin\AppData\Local\7530bb04-0f76-4bff-afbe-8c0f70f3b32a\JC_e67cfe4c756f3efa4fc4399e6797b04683b8abbb321a9b69a5619498b63aabda.exe

      Filesize

      777KB

      MD5

      e3c4b0b0a9eaca5786b82e3edd42646a

      SHA1

      695bf67b0e586211b96a6f4e657430e5cf1d959a

      SHA256

      e67cfe4c756f3efa4fc4399e6797b04683b8abbb321a9b69a5619498b63aabda

      SHA512

      f5e6ac106ee3c0da7b9df4949c4abc727474039b15083f8eb3e76c4aa1c00ed2d8d256d21fba759258c601c819d5c0aa0915d2d7c8b4f399ef09835c449d407f

    • C:\Users\Admin\AppData\Local\aa44e77c-e7e6-4af8-8230-4b260eb19c9b\build2.exe

      Filesize

      396KB

      MD5

      a3d4e0b89f4210c0ad7d8df63ff21876

      SHA1

      06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

      SHA256

      3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

      SHA512

      dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

    • C:\Users\Admin\AppData\Local\aa44e77c-e7e6-4af8-8230-4b260eb19c9b\build2.exe

      Filesize

      396KB

      MD5

      a3d4e0b89f4210c0ad7d8df63ff21876

      SHA1

      06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

      SHA256

      3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

      SHA512

      dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

    • C:\Users\Admin\AppData\Local\aa44e77c-e7e6-4af8-8230-4b260eb19c9b\build2.exe

      Filesize

      396KB

      MD5

      a3d4e0b89f4210c0ad7d8df63ff21876

      SHA1

      06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

      SHA256

      3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

      SHA512

      dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

    • C:\Users\Admin\AppData\Local\aa44e77c-e7e6-4af8-8230-4b260eb19c9b\build2.exe

      Filesize

      396KB

      MD5

      a3d4e0b89f4210c0ad7d8df63ff21876

      SHA1

      06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

      SHA256

      3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

      SHA512

      dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

    • C:\Users\Admin\AppData\Local\aa44e77c-e7e6-4af8-8230-4b260eb19c9b\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\aa44e77c-e7e6-4af8-8230-4b260eb19c9b\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\aa44e77c-e7e6-4af8-8230-4b260eb19c9b\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

    • memory/784-20-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/784-27-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/784-31-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/784-34-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/784-33-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/784-21-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/784-117-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/784-19-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/784-45-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/784-97-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/784-26-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1576-17-0x0000000002770000-0x0000000002802000-memory.dmp

      Filesize

      584KB

    • memory/2044-52-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/2044-105-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/2044-51-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/2044-106-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/2044-53-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/2044-63-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/2044-49-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/2176-0-0x0000000004230000-0x00000000042C2000-memory.dmp

      Filesize

      584KB

    • memory/2176-4-0x0000000004230000-0x00000000042C2000-memory.dmp

      Filesize

      584KB

    • memory/2176-1-0x00000000042D0000-0x00000000043EB000-memory.dmp

      Filesize

      1.1MB

    • memory/2512-6-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2512-15-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2512-5-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2512-3-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2512-2-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3216-47-0x00000000020B0000-0x00000000021B0000-memory.dmp

      Filesize

      1024KB

    • memory/3216-48-0x0000000003B50000-0x0000000003BAC000-memory.dmp

      Filesize

      368KB