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Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    04/04/2024, 23:33

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General

  • Target

    5c2a928300805c6f772128556ec39f4152172ff9757e22e23bf0b89f91f0e101.exe

  • Size

    172KB

  • MD5

    af2027f509b6f4b269a7249c2cd5ae4d

  • SHA1

    63d66ab967e4d1a8aea1273f694e4fcafb8699d1

  • SHA256

    5c2a928300805c6f772128556ec39f4152172ff9757e22e23bf0b89f91f0e101

  • SHA512

    73bba08e07b58ad3ebb200133a1435bccee8978afad315a3b1adb2f28fbd72e3dd9f7ced998e3477f52bac619ccab9b2089facfd62c51c4991cc6c2da3172fa5

  • SSDEEP

    3072:8or9nIoq91dwPfb4Z3EtqpAQVjnHF3egebZNn7+KX:lRnIoO1d2D4ZUtqpXllugen+0

Score
10/10
djvusmokeloaderpub1backdoordiscoverypersistenceransomwarespywarestealertrojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

C2

http://trad-einmyus.com/index.php

http://tradein-myus.com/index.php

http://trade-inmyus.com/index.php
rc4.i32
rc4.i32

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .uajs

  • offline_id

    Jx0i3k2ogR5cKxX1evmz0Ex7TUxOUlnbh2dvnIt1

  • 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/df01994dd8d37c2c33469922f8e7155a20240402134014/fd95b0 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: 0859PsawqS

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 9 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

    ransomwaredjvu
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

    trojanbackdoorsmokeloader
  • Downloads MZ/PE file
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
    persistence
  • Deletes itself 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
    discovery
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
    spyware
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 61 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 12 IoCs
  • Modifies Internet Explorer settings 1 TTPs 6 IoCs
    adwarespyware
  • Modifies registry class 57 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 43 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 9 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\5c2a928300805c6f772128556ec39f4152172ff9757e22e23bf0b89f91f0e101.exe
    "C:\Users\Admin\AppData\Local\Temp\5c2a928300805c6f772128556ec39f4152172ff9757e22e23bf0b89f91f0e101.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3280
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\855C.bat" "
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1972
    • C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
      2⤵
        PID:616
    • C:\Users\Admin\AppData\Local\Temp\9C41.exe
      C:\Users\Admin\AppData\Local\Temp\9C41.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Users\Admin\AppData\Local\Temp\9C41.exe
        C:\Users\Admin\AppData\Local\Temp\9C41.exe
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:1804
        • C:\Windows\SysWOW64\icacls.exe
          icacls "C:\Users\Admin\AppData\Local\06a3922d-fce5-40cc-bece-8ce980cbabc9" /deny *S-1-1-0:(OI)(CI)(DE,DC)
          3⤵
          • Modifies file permissions
          PID:4104
        • C:\Users\Admin\AppData\Local\Temp\9C41.exe
          "C:\Users\Admin\AppData\Local\Temp\9C41.exe" --Admin IsNotAutoStart IsNotTask
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:2404
          • C:\Users\Admin\AppData\Local\Temp\9C41.exe
            "C:\Users\Admin\AppData\Local\Temp\9C41.exe" --Admin IsNotAutoStart IsNotTask
            4⤵
            • Executes dropped EXE
            PID:3252
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 600
              5⤵
              • Program crash
              PID:3676
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3252 -ip 3252
      1⤵
        PID:1432
      • C:\Users\Admin\AppData\Local\Temp\CE3F.exe
        C:\Users\Admin\AppData\Local\Temp\CE3F.exe
        1⤵
        • Executes dropped EXE
        PID:2864
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\D0FF.bat" "
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:2772
        • C:\Windows\system32\reg.exe
          reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
          2⤵
            PID:1704
        • C:\Windows\explorer.exe
          explorer.exe
          1⤵
          • Modifies Installed Components in the registry
          • Enumerates connected drives
          • Checks SCSI registry key(s)
          • Modifies registry class
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          • Suspicious use of SetWindowsHookEx
          PID:4848
        • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
          "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
          1⤵
          • Enumerates system info in registry
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:4984
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:2476
        • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
          "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
          1⤵
          • Enumerates system info in registry
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:4308
        • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
          "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
          1⤵
          • Enumerates system info in registry
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:2328
        • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
          "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
          1⤵
          • Enumerates system info in registry
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:2324
        • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
          "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
          1⤵
          • Enumerates system info in registry
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:4624
        • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe
          "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca
          1⤵
          • Enumerates system info in registry
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:2348

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\855C.bat
          Filesize

          77B

          MD5

          55cc761bf3429324e5a0095cab002113

          SHA1

          2cc1ef4542a4e92d4158ab3978425d517fafd16d

          SHA256

          d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a

          SHA512

          33f9f5cad22d291077787c7df510806e4ac31f453d288712595af6debe579fabed6cdf4662e46e6fa94de135b161e739f55cfae05c36c87af85ed6a6ad1c9155

          Download Submit

        • C:\Users\Admin\AppData\Local\Temp\9C41.exe
          Filesize

          702KB

          MD5

          d5569b38de8b1e6eb5dc66fb8e7b5efa

          SHA1

          a6f296fdf93ae56b038ef00a64d8522e838beee6

          SHA256

          b4612a454cf46728dce97daf3e26453995083fa403312f5c21fc87d8d3e9b4f5

          SHA512

          033f27adac98689ef4a8ed49130ac79ba522e04d189ef5d8431128820fa6338d9a357f9131c0877d9b64e2b32de88d5ea4dd193accfc22f152c8cf297d02bbb9

          Download Submit

        • C:\Users\Admin\AppData\Local\Temp\CE3F.exe
          Filesize

          6.5MB

          MD5

          9e52aa572f0afc888c098db4c0f687ff

          SHA1

          ef7c2bb222e69ad0e10c8686eb03dcbee7933c2b

          SHA256

          4a40f9d491f09521f4b0c6076a0eb488f6d8e1cf4b67aa6569c2ccce13556443

          SHA512

          d0991e682ae8c954721e905753b56c01f91b85313beb9996331793c3efa8acc13d574ef5ba44853ecc3e05822931ed655bad1924fa11b774a43e015f42185f62

          Download Submit

        • memory/1804-25-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

          Download

        • memory/1804-38-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

          Download

        • memory/1804-26-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

          Download

        • memory/1804-22-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

          Download

        • memory/1804-24-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

          Download

        • memory/1964-20-0x0000000004810000-0x00000000048AE000-memory.dmp

          Filesize

          632KB

          Download

        • memory/1964-21-0x00000000049F0000-0x0000000004B0B000-memory.dmp

          Filesize

          1.1MB

          Download

        • memory/2404-43-0x0000000004900000-0x0000000004996000-memory.dmp

          Filesize

          600KB

          Download

        • memory/2864-80-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-86-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-114-0x0000000000E50000-0x0000000001B35000-memory.dmp

          Filesize

          12.9MB

          Download

        • memory/2864-113-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-111-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-112-0x00000000041A0000-0x00000000041A1000-memory.dmp

          Filesize

          4KB

          Download

        • memory/2864-110-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-109-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-54-0x0000000000E50000-0x0000000001B35000-memory.dmp

          Filesize

          12.9MB

          Download

        • memory/2864-63-0x0000000000E20000-0x0000000000E21000-memory.dmp

          Filesize

          4KB

          Download

        • memory/2864-64-0x0000000000E30000-0x0000000000E31000-memory.dmp

          Filesize

          4KB

          Download

        • memory/2864-65-0x0000000000E40000-0x0000000000E41000-memory.dmp

          Filesize

          4KB

          Download

        • memory/2864-66-0x0000000000E50000-0x0000000001B35000-memory.dmp

          Filesize

          12.9MB

          Download

        • memory/2864-67-0x0000000003400000-0x0000000003401000-memory.dmp

          Filesize

          4KB

          Download

        • memory/2864-68-0x0000000003410000-0x0000000003411000-memory.dmp

          Filesize

          4KB

          Download

        • memory/2864-69-0x0000000003430000-0x0000000003431000-memory.dmp

          Filesize

          4KB

          Download

        • memory/2864-71-0x0000000000E50000-0x0000000001B35000-memory.dmp

          Filesize

          12.9MB

          Download

        • memory/2864-73-0x0000000003440000-0x0000000003480000-memory.dmp

          Filesize

          256KB

          Download

        • memory/2864-74-0x0000000003440000-0x0000000003480000-memory.dmp

          Filesize

          256KB

          Download

        • memory/2864-72-0x0000000003440000-0x0000000003480000-memory.dmp

          Filesize

          256KB

          Download

        • memory/2864-75-0x0000000003440000-0x0000000003480000-memory.dmp

          Filesize

          256KB

          Download

        • memory/2864-77-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-76-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-78-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-79-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-107-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-81-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-82-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-85-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-84-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-83-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-108-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-87-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-88-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-90-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-89-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-91-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-92-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-93-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-94-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-95-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-96-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-97-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-98-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-99-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-100-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-101-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-102-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-103-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-104-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-105-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/2864-106-0x00000000040A0000-0x00000000041A0000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/3252-47-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

          Download

        • memory/3252-45-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

          Download

        • memory/3252-44-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

          Download

        • memory/3280-5-0x0000000000400000-0x0000000002B54000-memory.dmp

          Filesize

          39.3MB

          Download

        • memory/3280-1-0x0000000002E80000-0x0000000002F80000-memory.dmp

          Filesize

          1024KB

          Download

        • memory/3280-2-0x0000000002D30000-0x0000000002D3B000-memory.dmp

          Filesize

          44KB

          Download

        • memory/3280-3-0x0000000000400000-0x0000000002B54000-memory.dmp

          Filesize

          39.3MB

          Download

        • memory/3392-4-0x0000000002C70000-0x0000000002C86000-memory.dmp

          Filesize

          88KB

          Download

        • memory/3392-116-0x0000000002CA0000-0x0000000002CA1000-memory.dmp

          Filesize

          4KB

          Download