Analysis

  • max time kernel
    297s
  • max time network
    257s
  • platform
    windows10-1703_x64
  • resource
    win10-20230831-en
  • resource tags

    arch:x64arch:x86image:win10-20230831-enlocale:en-usos:windows10-1703-x64system
  • submitted
    02/09/2023, 04:47

General

  • Target

    1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7.exe

  • Size

    715KB

  • MD5

    dd64dc7ae2e57753329f2481e12607ae

  • SHA1

    437ae73f73d69f8648f40b7a074d8f27c962c5a3

  • SHA256

    1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7

  • SHA512

    ec570a16f3496ce9a4a23972ce7f5dae3cc64820fe0454216d1b48518247ff1c48f1b80a55c8d9201dcc4807d41eb0a4cabb4c5211420e721b71ffa9482791af

  • SSDEEP

    12288:580Eokp2+hG/SP8ToU9+P4DByanoGkgUcBs9w9s+6r8gCg8C+3:58dVpToGxU9+P4DYan03cew91ggL

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .nzqw

  • offline_id

    fe7vbai057v1PzegcJrFdG7DjT3mL5gUtMQkLrt1

  • 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-E4b0Td2MBH 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: 0769JOsie

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 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\1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7.exe
    "C:\Users\Admin\AppData\Local\Temp\1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3916
    • C:\Users\Admin\AppData\Local\Temp\1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7.exe
      "C:\Users\Admin\AppData\Local\Temp\1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2980
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\f16875e0-4a62-406c-aa42-4a672829b43e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:5092
      • C:\Users\Admin\AppData\Local\Temp\1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7.exe
        "C:\Users\Admin\AppData\Local\Temp\1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1412
        • C:\Users\Admin\AppData\Local\Temp\1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7.exe
          "C:\Users\Admin\AppData\Local\Temp\1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4360
          • C:\Users\Admin\AppData\Local\cb0b1707-9f6b-4e07-9f6b-a7fc7bdea8d7\build2.exe
            "C:\Users\Admin\AppData\Local\cb0b1707-9f6b-4e07-9f6b-a7fc7bdea8d7\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4420
            • C:\Users\Admin\AppData\Local\cb0b1707-9f6b-4e07-9f6b-a7fc7bdea8d7\build2.exe
              "C:\Users\Admin\AppData\Local\cb0b1707-9f6b-4e07-9f6b-a7fc7bdea8d7\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4540
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\cb0b1707-9f6b-4e07-9f6b-a7fc7bdea8d7\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4932
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:2476
          • C:\Users\Admin\AppData\Local\cb0b1707-9f6b-4e07-9f6b-a7fc7bdea8d7\build3.exe
            "C:\Users\Admin\AppData\Local\cb0b1707-9f6b-4e07-9f6b-a7fc7bdea8d7\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3544
            • 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:3636
  • 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:2112
    • 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:676

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

          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

          512e653c494908645058097523f75596

          SHA1

          efeaec45df25ed12e62c596d0eb0054028c4e22e

          SHA256

          1e07d0a2663c49149214b4ce1dc2c2edae936dfc19c1697f08e805d1f127c823

          SHA512

          2d8105d5334efce4d2b9e64aae5806b8f136b8ad0217a1d9b869715b942104aef8cf90b13ff8b75c2c37434661f88793ff6266a600784892d1058dffa3cde155

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

          Filesize

          482B

          MD5

          1e754cd8ec28e7cc10de31702a3e4f76

          SHA1

          654cb7eac44fe161097c18492e42df1da41baf7f

          SHA256

          d404005d88f846dadbe574f0851377094d4522a0aaac4b18397afd6472160a78

          SHA512

          3e34eabae1020c19413c4e174064a3c002422948adfe5ed107fad21c18e35e601994c11a93f07f022498bdc26debce67794089c8b287b6bf1f1ef73618a9a902

        • C:\Users\Admin\AppData\Local\cb0b1707-9f6b-4e07-9f6b-a7fc7bdea8d7\build2.exe

          Filesize

          396KB

          MD5

          a3d4e0b89f4210c0ad7d8df63ff21876

          SHA1

          06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

          SHA256

          3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

          SHA512

          dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

        • C:\Users\Admin\AppData\Local\cb0b1707-9f6b-4e07-9f6b-a7fc7bdea8d7\build2.exe

          Filesize

          396KB

          MD5

          a3d4e0b89f4210c0ad7d8df63ff21876

          SHA1

          06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

          SHA256

          3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

          SHA512

          dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

        • C:\Users\Admin\AppData\Local\cb0b1707-9f6b-4e07-9f6b-a7fc7bdea8d7\build2.exe

          Filesize

          396KB

          MD5

          a3d4e0b89f4210c0ad7d8df63ff21876

          SHA1

          06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

          SHA256

          3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

          SHA512

          dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

        • C:\Users\Admin\AppData\Local\cb0b1707-9f6b-4e07-9f6b-a7fc7bdea8d7\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\cb0b1707-9f6b-4e07-9f6b-a7fc7bdea8d7\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\f16875e0-4a62-406c-aa42-4a672829b43e\1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7.exe

          Filesize

          715KB

          MD5

          dd64dc7ae2e57753329f2481e12607ae

          SHA1

          437ae73f73d69f8648f40b7a074d8f27c962c5a3

          SHA256

          1efc10a29e914eaf86ab283c2f3e75c2b776c318233372de9bc9599edb030bb7

          SHA512

          ec570a16f3496ce9a4a23972ce7f5dae3cc64820fe0454216d1b48518247ff1c48f1b80a55c8d9201dcc4807d41eb0a4cabb4c5211420e721b71ffa9482791af

        • 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/1412-22-0x00000000016A0000-0x0000000001732000-memory.dmp

          Filesize

          584KB

        • memory/2980-19-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2980-6-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2980-5-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2980-4-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2980-3-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3916-1-0x0000000003040000-0x00000000030DC000-memory.dmp

          Filesize

          624KB

        • memory/3916-2-0x0000000003240000-0x000000000335B000-memory.dmp

          Filesize

          1.1MB

        • memory/4360-41-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4360-33-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4360-42-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4360-40-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4360-38-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4360-55-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4360-24-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4360-25-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4360-34-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4360-26-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4420-60-0x0000000001F70000-0x0000000002070000-memory.dmp

          Filesize

          1024KB

        • memory/4420-61-0x0000000003A40000-0x0000000003A9C000-memory.dmp

          Filesize

          368KB

        • memory/4540-66-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/4540-77-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/4540-65-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/4540-64-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/4540-115-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/4540-116-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/4540-117-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/4540-62-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB