Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-03-2023 03:28

General

  • Target

    4967a8d1e026344486b7c73eecf1cbbec2e0473086d7fbc76cd8d1dbd5d0fe3b.exe

  • Size

    781KB

  • MD5

    14262ca43c155e737d2639097fbef3ac

  • SHA1

    dbbc76056d344b6a865958d64201163967b530d1

  • SHA256

    4967a8d1e026344486b7c73eecf1cbbec2e0473086d7fbc76cd8d1dbd5d0fe3b

  • SHA512

    c7a2d3cf61d5037c798a4106108a97e77943a2d5fb54a7327af3c33e0d23cad78ed5de9d0c833af04e19bcadd37b97c264e661255b9a6de483a258b6a2e19929

  • SSDEEP

    12288:bkUhjljNWWDeI3AAKBFhykbHMlNb5oF9trJs+8hFxjWl39YxPaz6z:f5jNhKIqFzbHMlBWF9trJsROQSz6

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test2/get.php

Attributes
  • extension

    .tywd

  • offline_id

    Yao2o6f5vNghOpgVBhEIA8O96SC5vLcgITgaRMt1

  • 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-f8UEvx4T0A 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: 0671IsjO

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.1

Botnet

00d92484c9b27bc8482a2cc94cacc508

C2

https://steamcommunity.com/profiles/76561199472266392

https://t.me/tabootalks

http://135.181.26.183:80

Attributes
  • profile_id_v2

    00d92484c9b27bc8482a2cc94cacc508

  • 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
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 3 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 1 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 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4967a8d1e026344486b7c73eecf1cbbec2e0473086d7fbc76cd8d1dbd5d0fe3b.exe
    "C:\Users\Admin\AppData\Local\Temp\4967a8d1e026344486b7c73eecf1cbbec2e0473086d7fbc76cd8d1dbd5d0fe3b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Users\Admin\AppData\Local\Temp\4967a8d1e026344486b7c73eecf1cbbec2e0473086d7fbc76cd8d1dbd5d0fe3b.exe
      "C:\Users\Admin\AppData\Local\Temp\4967a8d1e026344486b7c73eecf1cbbec2e0473086d7fbc76cd8d1dbd5d0fe3b.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4400
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\739f2681-e8a1-4c9c-98c9-15dde1df191a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2260
      • C:\Users\Admin\AppData\Local\Temp\4967a8d1e026344486b7c73eecf1cbbec2e0473086d7fbc76cd8d1dbd5d0fe3b.exe
        "C:\Users\Admin\AppData\Local\Temp\4967a8d1e026344486b7c73eecf1cbbec2e0473086d7fbc76cd8d1dbd5d0fe3b.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4516
        • C:\Users\Admin\AppData\Local\Temp\4967a8d1e026344486b7c73eecf1cbbec2e0473086d7fbc76cd8d1dbd5d0fe3b.exe
          "C:\Users\Admin\AppData\Local\Temp\4967a8d1e026344486b7c73eecf1cbbec2e0473086d7fbc76cd8d1dbd5d0fe3b.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3136
          • C:\Users\Admin\AppData\Local\fb2b1a75-b58e-4d13-b5c0-1f2c581d327c\build2.exe
            "C:\Users\Admin\AppData\Local\fb2b1a75-b58e-4d13-b5c0-1f2c581d327c\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:5068
            • C:\Users\Admin\AppData\Local\fb2b1a75-b58e-4d13-b5c0-1f2c581d327c\build2.exe
              "C:\Users\Admin\AppData\Local\fb2b1a75-b58e-4d13-b5c0-1f2c581d327c\build2.exe"
              6⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:2712
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\fb2b1a75-b58e-4d13-b5c0-1f2c581d327c\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:1996
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:3480
          • C:\Users\Admin\AppData\Local\fb2b1a75-b58e-4d13-b5c0-1f2c581d327c\build3.exe
            "C:\Users\Admin\AppData\Local\fb2b1a75-b58e-4d13-b5c0-1f2c581d327c\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4820
            • 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:1020

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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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

    ebf38835fd83d603ed2939112fe923d2

    SHA1

    27426896cf1aac5c41eff28eae202b44d92345f9

    SHA256

    1b703c5ef0e6349372108f3a7a2033a365e50a17e8d7cd278f93e4444f232b71

    SHA512

    7d4d060f679ba65f601e5e7d9bee51bec4bd801bb3440a5c1f856cfa643ccca152a670e38d1e458d419e5f41ee422d5f37029035e58c2e8e9ec9e0339c680a0d

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

    Filesize

    1KB

    MD5

    e23d8cd61c2e75283867a91ce42aa1dc

    SHA1

    a86f54bb4f00cf0fcd3efc3951d54e168d25c7f4

    SHA256

    0a8b65baa91fb423458dd64e067a6009cd4ce9a93c65ac4b448025403ab0ea9c

    SHA512

    89483da80407e373d6d0f18b4ddd3976a5cd8e590b398de51e881623f54e4c146ec57def18c26c8f7ca5e7ed00b51b9a94d14ad38d2d716b416507b41144c5f4

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

    Filesize

    488B

    MD5

    897e818f371fdc9ee919ada6d4285004

    SHA1

    e6fb31f737c7d709a6480fda5ccfdb7ba6c0db5a

    SHA256

    539fc71428a6ecd3585ed72c828c5b3e4ccda946238fc0186b2e150fbd3b707c

    SHA512

    7caf81f9f911a852a5d6e1545229a751d0371919e9ce5d2b542ea599d239b2bc7ab2864cd15c80c59f2127a70b4c96a9b7cf90b76566c281cbaa753116804b2f

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

    Filesize

    482B

    MD5

    9874858894be397572db757b70dd90bc

    SHA1

    1a5b88f3d9a75dacb5aa20839f91c84883c8cec6

    SHA256

    129c8ab27db78df9c06d4628bb99dbee741de3da8a522d319fd572b433ff6e74

    SHA512

    56757ee0feae7adea4b003ebddd037e988e8ecc0ab2d5f3b46cab6fbaee364a261c09a518222a83946fb5a72c72b3b150fd479e6839dea94bb41491972f78660

  • C:\Users\Admin\AppData\Local\739f2681-e8a1-4c9c-98c9-15dde1df191a\4967a8d1e026344486b7c73eecf1cbbec2e0473086d7fbc76cd8d1dbd5d0fe3b.exe

    Filesize

    781KB

    MD5

    14262ca43c155e737d2639097fbef3ac

    SHA1

    dbbc76056d344b6a865958d64201163967b530d1

    SHA256

    4967a8d1e026344486b7c73eecf1cbbec2e0473086d7fbc76cd8d1dbd5d0fe3b

    SHA512

    c7a2d3cf61d5037c798a4106108a97e77943a2d5fb54a7327af3c33e0d23cad78ed5de9d0c833af04e19bcadd37b97c264e661255b9a6de483a258b6a2e19929

  • C:\Users\Admin\AppData\Local\fb2b1a75-b58e-4d13-b5c0-1f2c581d327c\build2.exe

    Filesize

    299KB

    MD5

    6b343cd7dea3ae28d0819bc55a2f86fe

    SHA1

    cedd49849a5dd678d0a55da607e9b28a9680073c

    SHA256

    4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

    SHA512

    7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

  • C:\Users\Admin\AppData\Local\fb2b1a75-b58e-4d13-b5c0-1f2c581d327c\build2.exe

    Filesize

    299KB

    MD5

    6b343cd7dea3ae28d0819bc55a2f86fe

    SHA1

    cedd49849a5dd678d0a55da607e9b28a9680073c

    SHA256

    4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

    SHA512

    7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

  • C:\Users\Admin\AppData\Local\fb2b1a75-b58e-4d13-b5c0-1f2c581d327c\build2.exe

    Filesize

    299KB

    MD5

    6b343cd7dea3ae28d0819bc55a2f86fe

    SHA1

    cedd49849a5dd678d0a55da607e9b28a9680073c

    SHA256

    4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

    SHA512

    7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

  • C:\Users\Admin\AppData\Local\fb2b1a75-b58e-4d13-b5c0-1f2c581d327c\build2.exe

    Filesize

    299KB

    MD5

    6b343cd7dea3ae28d0819bc55a2f86fe

    SHA1

    cedd49849a5dd678d0a55da607e9b28a9680073c

    SHA256

    4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

    SHA512

    7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

  • C:\Users\Admin\AppData\Local\fb2b1a75-b58e-4d13-b5c0-1f2c581d327c\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\fb2b1a75-b58e-4d13-b5c0-1f2c581d327c\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\fb2b1a75-b58e-4d13-b5c0-1f2c581d327c\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • memory/2136-136-0x0000000004960000-0x0000000004A7B000-memory.dmp

    Filesize

    1.1MB

  • memory/2712-274-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/2712-205-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2712-180-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/2712-275-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/2712-277-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/2712-183-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/2712-278-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/2712-279-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/2712-178-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/2712-182-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3136-165-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3136-163-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3136-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3136-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3136-166-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3136-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3136-193-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3136-276-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3136-158-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3136-159-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4400-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4400-146-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4400-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4400-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4400-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5068-181-0x0000000000620000-0x0000000000677000-memory.dmp

    Filesize

    348KB