Analysis

  • max time kernel
    141s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    03-09-2023 07:22

General

  • Target

    c1d65a59f6681362384ba996794cfb32.exe

  • Size

    888KB

  • MD5

    c1d65a59f6681362384ba996794cfb32

  • SHA1

    2a04d8837a89c83fd77e33e94769f4a83c5e3d89

  • SHA256

    eabaa62f8d278372288c480bda8eed290abefb3e8e90a3af0690756dc7577cfc

  • SHA512

    dda6d4d3638ff900c59dc2e6f39f9563a6ee2996094d5cd42fcb8ef05acf3bf8021a428c4740ff1124fcd0fa26cb88a658dcf235579385253df2e3b8a31a07de

  • SSDEEP

    24576:bhM/HMEWZFNKUho9miSbcIJhMkDpgLHL/:bhM/HMJzUUho9mlbceakgLH

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .nztt

  • 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: 0772JOsie

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 14 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 6 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 2 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
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c1d65a59f6681362384ba996794cfb32.exe
    "C:\Users\Admin\AppData\Local\Temp\c1d65a59f6681362384ba996794cfb32.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2220
    • C:\Users\Admin\AppData\Local\Temp\c1d65a59f6681362384ba996794cfb32.exe
      "C:\Users\Admin\AppData\Local\Temp\c1d65a59f6681362384ba996794cfb32.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2484
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\eee8562a-ef16-434c-b0b4-6ffdc1aee91a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2688
      • C:\Users\Admin\AppData\Local\Temp\c1d65a59f6681362384ba996794cfb32.exe
        "C:\Users\Admin\AppData\Local\Temp\c1d65a59f6681362384ba996794cfb32.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1860
        • C:\Users\Admin\AppData\Local\Temp\c1d65a59f6681362384ba996794cfb32.exe
          "C:\Users\Admin\AppData\Local\Temp\c1d65a59f6681362384ba996794cfb32.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2560
          • C:\Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build2.exe
            "C:\Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1520
            • C:\Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build2.exe
              "C:\Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Modifies system certificate store
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:476
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:1056
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:2180
          • C:\Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build3.exe
            "C:\Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1968
            • 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:3048
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {4B603234-D2CD-4195-8B3D-C0D4F8A429F3} S-1-5-21-3750544865-3773649541-1858556521-1000:XOCYHKRS\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      2⤵
      • Executes dropped EXE
      PID:2044
      • 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"
        3⤵
        • Creates scheduled task(s)
        PID:1600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    0678e5349ac85aa241d6f5b67b61e008

    SHA1

    69ca9dc4d4d4bfb6a3e82585b4612601d89550c8

    SHA256

    e9bc4657b943e1ae53a63e1823e837e8b01665ac647d48b404b9cea997fae91b

    SHA512

    221f4b91f1514751ad2a95cf803ba34bd1e5ab3993d5146786ba035ea471fec8918a451dcac0d308172abd4ef8ac46824caff31a6456270c3d510fac28b53ce8

  • C:\Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build2.exe

    Filesize

    396KB

    MD5

    a3d4e0b89f4210c0ad7d8df63ff21876

    SHA1

    06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

    SHA256

    3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

    SHA512

    dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

  • C:\Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build2.exe

    Filesize

    396KB

    MD5

    a3d4e0b89f4210c0ad7d8df63ff21876

    SHA1

    06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

    SHA256

    3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

    SHA512

    dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

  • C:\Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build2.exe

    Filesize

    396KB

    MD5

    a3d4e0b89f4210c0ad7d8df63ff21876

    SHA1

    06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

    SHA256

    3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

    SHA512

    dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

  • C:\Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build2.exe

    Filesize

    396KB

    MD5

    a3d4e0b89f4210c0ad7d8df63ff21876

    SHA1

    06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

    SHA256

    3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

    SHA512

    dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

  • C:\Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\Temp\Cab5F70.tmp

    Filesize

    61KB

    MD5

    f3441b8572aae8801c04f3060b550443

    SHA1

    4ef0a35436125d6821831ef36c28ffaf196cda15

    SHA256

    6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

    SHA512

    5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

  • C:\Users\Admin\AppData\Local\Temp\Tar60AB.tmp

    Filesize

    163KB

    MD5

    9441737383d21192400eca82fda910ec

    SHA1

    725e0d606a4fc9ba44aa8ffde65bed15e65367e4

    SHA256

    bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

    SHA512

    7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

  • C:\Users\Admin\AppData\Local\eee8562a-ef16-434c-b0b4-6ffdc1aee91a\c1d65a59f6681362384ba996794cfb32.exe

    Filesize

    888KB

    MD5

    c1d65a59f6681362384ba996794cfb32

    SHA1

    2a04d8837a89c83fd77e33e94769f4a83c5e3d89

    SHA256

    eabaa62f8d278372288c480bda8eed290abefb3e8e90a3af0690756dc7577cfc

    SHA512

    dda6d4d3638ff900c59dc2e6f39f9563a6ee2996094d5cd42fcb8ef05acf3bf8021a428c4740ff1124fcd0fa26cb88a658dcf235579385253df2e3b8a31a07de

  • 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

  • \Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build2.exe

    Filesize

    396KB

    MD5

    a3d4e0b89f4210c0ad7d8df63ff21876

    SHA1

    06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

    SHA256

    3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

    SHA512

    dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

  • \Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build2.exe

    Filesize

    396KB

    MD5

    a3d4e0b89f4210c0ad7d8df63ff21876

    SHA1

    06ae277ba8c0b747df2498add0fdaa3e8fbe5ebb

    SHA256

    3609c3cbb2bee674e91d44e4e49197c5403a33ac9649343feacedb5ca5759ef5

    SHA512

    dfd7395e1a7fe09e404ab76196a6ca5ff1bc7f880efab4e8126ccad451fc9699ad750ce195c98cc7f449c0bff69c693884c8b2307c75fab5f616a442cabb544a

  • \Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • \Users\Admin\AppData\Local\044ec391-edfa-455a-b450-db3f9d7ffcc5\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • memory/476-83-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/476-186-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/476-187-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/476-148-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/476-76-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/476-185-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/476-80-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/476-84-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/1520-77-0x0000000001FE0000-0x00000000020E0000-memory.dmp

    Filesize

    1024KB

  • memory/1520-79-0x00000000002D0000-0x000000000032C000-memory.dmp

    Filesize

    368KB

  • memory/2220-1-0x0000000003D60000-0x0000000003E7B000-memory.dmp

    Filesize

    1.1MB

  • memory/2220-6-0x0000000000310000-0x00000000003A2000-memory.dmp

    Filesize

    584KB

  • memory/2220-0-0x0000000000310000-0x00000000003A2000-memory.dmp

    Filesize

    584KB

  • memory/2484-7-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2484-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2484-43-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2484-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2484-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2560-49-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2560-143-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2560-65-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2560-61-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2560-60-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2560-58-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2560-53-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2560-54-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2560-50-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB