Analysis

  • max time kernel
    308s
  • max time network
    289s
  • platform
    windows10-1703_x64
  • resource
    win10-20240221-en
  • resource tags

    arch:x64arch:x86image:win10-20240221-enlocale:en-usos:windows10-1703-x64system
  • submitted
    29/03/2024, 01:53

General

  • Target

    afd414546738f66693ca9965dc07881786022d260a583f5b7bc15ad8ae87cd60.exe

  • Size

    817KB

  • MD5

    0aa26eb97a218a0e29fd68234bbede16

  • SHA1

    4e581939ea05fe439adbcc636448cc6bd257a923

  • SHA256

    afd414546738f66693ca9965dc07881786022d260a583f5b7bc15ad8ae87cd60

  • SHA512

    8ac60d7537c6b7820e8c3a4cad6e4406bb5245bb89072b6940644f0cbfe5450997c4a2ea4ce4a53105af81548c9a8531de784cd1a01bdfb9b43ce0bd385d5f35

  • SSDEEP

    12288:aUnpxP1bz92pPsss5Ky6rb/QPghm8xsEAKp2M9W7H2KJoGDg5EEhWS+19fEVT:5xPJ9eXs5KFzQCpqM9AXxDjS+ffG

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .looy

  • offline_id

    1eSPzWRaNslCgtjBZfL5pzvovoiaVI4IZSnvAwt1

  • payload_url

    http://sdfjhuz.com/dl/build2.exe

    http://sajdfue.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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/3ed7a617738550b0a00c5aa231c0752020240316170955/d71ce1 Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0858PsawqS

rsa_pubkey.plain

Extracted

Family

vidar

Version

8.6

Botnet

5739ef2bbcd39fcd59c5746bfe4238c5

C2

https://steamcommunity.com/profiles/76561199658817715

https://t.me/sa9ok

Attributes
  • profile_id_v2

    5739ef2bbcd39fcd59c5746bfe4238c5

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Signatures

  • Detect Vidar Stealer 7 IoCs
  • Detected Djvu ransomware 17 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 13 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • 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 8 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • 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 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\afd414546738f66693ca9965dc07881786022d260a583f5b7bc15ad8ae87cd60.exe
    "C:\Users\Admin\AppData\Local\Temp\afd414546738f66693ca9965dc07881786022d260a583f5b7bc15ad8ae87cd60.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3600
    • C:\Users\Admin\AppData\Local\Temp\afd414546738f66693ca9965dc07881786022d260a583f5b7bc15ad8ae87cd60.exe
      "C:\Users\Admin\AppData\Local\Temp\afd414546738f66693ca9965dc07881786022d260a583f5b7bc15ad8ae87cd60.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2304
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\bdb3a8d8-43fa-4212-8135-721e7cb2b7bb" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3524
      • C:\Users\Admin\AppData\Local\Temp\afd414546738f66693ca9965dc07881786022d260a583f5b7bc15ad8ae87cd60.exe
        "C:\Users\Admin\AppData\Local\Temp\afd414546738f66693ca9965dc07881786022d260a583f5b7bc15ad8ae87cd60.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2328
        • C:\Users\Admin\AppData\Local\Temp\afd414546738f66693ca9965dc07881786022d260a583f5b7bc15ad8ae87cd60.exe
          "C:\Users\Admin\AppData\Local\Temp\afd414546738f66693ca9965dc07881786022d260a583f5b7bc15ad8ae87cd60.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2112
          • C:\Users\Admin\AppData\Local\49d5de7d-bc75-4e72-b44b-12034ea16616\build2.exe
            "C:\Users\Admin\AppData\Local\49d5de7d-bc75-4e72-b44b-12034ea16616\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4292
            • C:\Users\Admin\AppData\Local\49d5de7d-bc75-4e72-b44b-12034ea16616\build2.exe
              "C:\Users\Admin\AppData\Local\49d5de7d-bc75-4e72-b44b-12034ea16616\build2.exe"
              6⤵
              • Executes dropped EXE
              PID:1848
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1848 -s 1056
                7⤵
                • Program crash
                PID:4524
          • C:\Users\Admin\AppData\Local\49d5de7d-bc75-4e72-b44b-12034ea16616\build3.exe
            "C:\Users\Admin\AppData\Local\49d5de7d-bc75-4e72-b44b-12034ea16616\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2416
            • C:\Users\Admin\AppData\Local\49d5de7d-bc75-4e72-b44b-12034ea16616\build3.exe
              "C:\Users\Admin\AppData\Local\49d5de7d-bc75-4e72-b44b-12034ea16616\build3.exe"
              6⤵
              • Executes dropped EXE
              • Suspicious use of WriteProcessMemory
              PID:3560
              • 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"
                7⤵
                • Creates scheduled task(s)
                PID:436
  • 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 SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5084
    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2196
      • 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:4452
  • 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 SetThreadContext
    PID:1340
    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      2⤵
      • Executes dropped EXE
      PID:944
  • 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 SetThreadContext
    PID:756
    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      2⤵
      • Executes dropped EXE
      PID:4332
  • 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 SetThreadContext
    PID:2300
    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      2⤵
      • Executes dropped EXE
      PID:1292
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    1⤵
    • Executes dropped EXE
    PID:2104

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

          Filesize

          1KB

          MD5

          2a789d6b366b95c47c2e68c27f863f81

          SHA1

          1b123bd94179f5b8746bc960691ddb9546855e05

          SHA256

          ba4990d90cdd27ce932e39c10e178659436aeb5a290faa47f4825da9eca6bc94

          SHA512

          027180aabc65ae3ca35f83161b11d289d87af854656483ac2cf703d94f695c4d5bce0fce1901278ab4cbfc985c9b9aa1f455c889913834c4b1734a365c7f8e3b

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

          Filesize

          724B

          MD5

          8202a1cd02e7d69597995cabbe881a12

          SHA1

          8858d9d934b7aa9330ee73de6c476acf19929ff6

          SHA256

          58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

          SHA512

          97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

          Filesize

          410B

          MD5

          ca3f7152c562a788e452ff5dd3af22a4

          SHA1

          1c8e33f4891818460b0db3bbcf5b1f07a20101a4

          SHA256

          6a1f77911b0bc359e5607f4ea8db1d5dcca5920898bdd54cd700e08a094bdbc5

          SHA512

          2b19931f7d691c4df92ceec799fd6214d008156beecefd7326b5b2f9779692611092293add0b3c9008006c40c3283208bf92e0fefb5a2d3668273a45d28b0955

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

          Filesize

          392B

          MD5

          8816329cc0a9bea518a322b5166ba215

          SHA1

          1ae4009f0c864c86cdb9591f5bda467ff9774b10

          SHA256

          582dc87afeb11232acfe06c2bd4ae7b9f5f5425f5e8fd2950ab2d9ef6727fa16

          SHA512

          626d28f5385fa95ef00d1147876c69c4654dd01ad172a1f20c1fd3750f6f8801cef73424137417a12d4ae797d447b0ffa6e8cc4027ec42ca1206a53005ac41a5

        • C:\Users\Admin\AppData\Local\49d5de7d-bc75-4e72-b44b-12034ea16616\build2.exe

          Filesize

          277KB

          MD5

          8dae8b6a6be6e3527183594d1c26a2d3

          SHA1

          b87e40cee60869a36e79c88c8a3a34baf0bc4889

          SHA256

          afce72cd3bc717c784962083066e3ede2b0aaadbe0908ec7360096c923774fa5

          SHA512

          0bf065700db647efba39a13a58242a595907e6c11885575cf0bdad9e23ab40583c8a6535464e46d75d075e20d88b7a6305a761df9da787fdc8728483dd48f96e

        • C:\Users\Admin\AppData\Local\49d5de7d-bc75-4e72-b44b-12034ea16616\build3.exe

          Filesize

          299KB

          MD5

          41b883a061c95e9b9cb17d4ca50de770

          SHA1

          1daf96ec21d53d9a4699cea9b4db08cda6fbb5ad

          SHA256

          fef2c8ca07c500e416fd7700a381c39899ee26ce1119f62e7c65cf922ce8b408

          SHA512

          cdd1bb3a36182575cd715a52815765161eeaa3849e72c1c2a9a4e84cc43af9f8ec4997e642702bb3de41f162d2e8fd8717f6f8302bba5306821ee4d155626319

        • C:\Users\Admin\AppData\Local\bdb3a8d8-43fa-4212-8135-721e7cb2b7bb\afd414546738f66693ca9965dc07881786022d260a583f5b7bc15ad8ae87cd60.exe

          Filesize

          817KB

          MD5

          0aa26eb97a218a0e29fd68234bbede16

          SHA1

          4e581939ea05fe439adbcc636448cc6bd257a923

          SHA256

          afd414546738f66693ca9965dc07881786022d260a583f5b7bc15ad8ae87cd60

          SHA512

          8ac60d7537c6b7820e8c3a4cad6e4406bb5245bb89072b6940644f0cbfe5450997c4a2ea4ce4a53105af81548c9a8531de784cd1a01bdfb9b43ce0bd385d5f35

        • memory/756-146-0x0000000000960000-0x0000000000A60000-memory.dmp

          Filesize

          1024KB

        • memory/1340-118-0x0000000000810000-0x0000000000910000-memory.dmp

          Filesize

          1024KB

        • memory/1848-51-0x0000000000400000-0x0000000000644000-memory.dmp

          Filesize

          2.3MB

        • memory/1848-46-0x0000000000400000-0x0000000000644000-memory.dmp

          Filesize

          2.3MB

        • memory/1848-52-0x0000000000400000-0x0000000000644000-memory.dmp

          Filesize

          2.3MB

        • memory/1848-75-0x0000000000400000-0x0000000000644000-memory.dmp

          Filesize

          2.3MB

        • memory/2112-24-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2112-55-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2112-23-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2112-29-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2112-30-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2112-34-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2112-36-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2112-37-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2112-22-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2112-64-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2112-53-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2300-174-0x000000000082E000-0x000000000083E000-memory.dmp

          Filesize

          64KB

        • memory/2304-17-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2304-6-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2304-2-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2304-5-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2304-4-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2328-20-0x0000000002620000-0x00000000026B8000-memory.dmp

          Filesize

          608KB

        • memory/2416-71-0x0000000000A30000-0x0000000000A34000-memory.dmp

          Filesize

          16KB

        • memory/2416-68-0x0000000000B00000-0x0000000000C00000-memory.dmp

          Filesize

          1024KB

        • memory/3560-72-0x0000000000400000-0x0000000000406000-memory.dmp

          Filesize

          24KB

        • memory/3560-73-0x0000000000400000-0x0000000000406000-memory.dmp

          Filesize

          24KB

        • memory/3560-67-0x0000000000400000-0x0000000000406000-memory.dmp

          Filesize

          24KB

        • memory/3560-78-0x0000000000410000-0x00000000004D5000-memory.dmp

          Filesize

          788KB

        • memory/3600-1-0x0000000002770000-0x000000000280B000-memory.dmp

          Filesize

          620KB

        • memory/3600-3-0x0000000002870000-0x000000000298B000-memory.dmp

          Filesize

          1.1MB

        • memory/4292-50-0x0000000002050000-0x0000000002081000-memory.dmp

          Filesize

          196KB

        • memory/4292-77-0x0000000002050000-0x0000000002081000-memory.dmp

          Filesize

          196KB

        • memory/4292-49-0x00000000006B0000-0x00000000007B0000-memory.dmp

          Filesize

          1024KB

        • memory/5084-93-0x0000000000A00000-0x0000000000B00000-memory.dmp

          Filesize

          1024KB

        • memory/5084-103-0x0000000000A00000-0x0000000000B00000-memory.dmp

          Filesize

          1024KB