Analysis

  • max time kernel
    135s
  • max time network
    156s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23/03/2024, 22:47

General

  • Target
    4bdc45ea94a99a7fb4585eb01497564ce83b2a2292d769791fda5b06288b4ca4.exe
  • Size 269KB
  • Sample240323-2qxt3adf27
  • SHA256 4bdc45ea94a99a7fb4585eb01497564ce83b2a2292d769791fda5b06288b4ca4
  • MD5 SHA1 SHA512 SSDEEP

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

    .vook

  • 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: 0857PsawqS

rsa_pubkey.plain

Extracted

Family
  • redline

Botnet
  • LogsDiller Cloud (TG: @logsdillabot)

C2
  • 5.42.65.68:29093

Signatures

  • Detected Djvu ransomware 9 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 1 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Modifies Installed Components in the registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 8 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 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.

  • 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 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 3 IoCs
  • Checks SCSI registry key(s) 3 TTPs 64 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
  • Modifies registry class 57 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 2 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 63 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.

  • Uses Volume Shadow Copy WMI provider

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

  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\4bdc45ea94a99a7fb4585eb01497564ce83b2a2292d769791fda5b06288b4ca4.exe
    "C:\Users\Admin\AppData\Local\Temp\4bdc45ea94a99a7fb4585eb01497564ce83b2a2292d769791fda5b06288b4ca4.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2044
  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\CC49.bat" "
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:788
    • C:\Windows\system32\reg.exe
      reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
      2⤵
        PID:2248
    • C:\Users\Admin\AppData\Local\Temp\DB3E.exe
      C:\Users\Admin\AppData\Local\Temp\DB3E.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2968
      • C:\Users\Admin\AppData\Local\Temp\DB3E.exe
        C:\Users\Admin\AppData\Local\Temp\DB3E.exe
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:2532
        • C:\Windows\SysWOW64\icacls.exe
          icacls "C:\Users\Admin\AppData\Local\62014e6b-3b87-4a6e-bdb1-4cd0658e53ff" /deny *S-1-1-0:(OI)(CI)(DE,DC)
          3⤵
          • Modifies file permissions
          PID:3832
        • C:\Users\Admin\AppData\Local\Temp\DB3E.exe
          "C:\Users\Admin\AppData\Local\Temp\DB3E.exe" --Admin IsNotAutoStart IsNotTask
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:2780
          • C:\Users\Admin\AppData\Local\Temp\DB3E.exe
            "C:\Users\Admin\AppData\Local\Temp\DB3E.exe" --Admin IsNotAutoStart IsNotTask
            4⤵
            • Executes dropped EXE
            PID:3964
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 3964 -s 600
              5⤵
              • Program crash
              PID:3256
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3964 -ip 3964
      1⤵
        PID:1536
      • C:\Users\Admin\AppData\Local\Temp\EDBD.exe
        C:\Users\Admin\AppData\Local\Temp\EDBD.exe
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2308
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          2⤵
          • Modifies system certificate store
          • Suspicious use of AdjustPrivilegeToken
          PID:4588
      • C:\Users\Admin\AppData\Local\Temp\390F.exe
        C:\Users\Admin\AppData\Local\Temp\390F.exe
        1⤵
        • Executes dropped EXE
        PID:2168
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2168 -s 1152
          2⤵
          • Program crash
          PID:252
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\3B24.bat" "
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:1400
        • C:\Windows\system32\reg.exe
          reg add "HKEY_CURRENT_USER\Software\clicker\key" /v primary /t REG_DWORD /d 1
          2⤵
            PID:3248
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2168 -ip 2168
          1⤵
            PID:232
          • C:\Users\Admin\AppData\Local\Temp\5525.exe
            C:\Users\Admin\AppData\Local\Temp\5525.exe
            1⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4976
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              2⤵
                PID:2040
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 464
                  3⤵
                  • Program crash
                  PID:1468
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2040 -ip 2040
              1⤵
                PID:2248
              • 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 behavior: GetForegroundWindowSpam
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SendNotifyMessage
                • Suspicious use of SetWindowsHookEx
                PID:2604
              • 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:3260
              • 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:3068
              • 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:3076
              • 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:1408
              • 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:3604
              • 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:4812
              • 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:412
              • C:\Users\Admin\AppData\Roaming\brejsbi
                C:\Users\Admin\AppData\Roaming\brejsbi
                1⤵
                • Executes dropped EXE
                • Checks SCSI registry key(s)
                • Suspicious behavior: MapViewOfSection
                PID:2356

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    DiscoverCacheData.dat

                    • Path C:\Users\Admin\AppData\Local\Microsoft\PenWorkspace\DiscoverCacheData.dat
                    • Size 1022B
                    • SHA256 913b0d47671f26ccb1706c39d90ba355dbf839ab91b7f8de51af9067fab2925f
                    • MD5 SHA1 SHA512

                    iconcache_idx.db

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\iconcache_idx.db
                    • Size 14KB
                    • SHA256 e4f33c03093e851824223e60be71f9ba99947569941250754c8abc2b0530b389
                    • MD5 SHA1 SHA512 SSDEEP

                    390F.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\390F.exe
                    • Size 6.5MB
                    • SHA256 4a40f9d491f09521f4b0c6076a0eb488f6d8e1cf4b67aa6569c2ccce13556443
                    • MD5 SHA1 SHA512 SSDEEP

                    5525.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\5525.exe
                    • Size 351KB
                    • SHA256 5ef8a6fc75231cb5751d95fd0fd21e6e9486097939c1f5a61930b01d59880c4a
                    • MD5 SHA1 SHA512 SSDEEP

                    CC49.bat

                    • Path C:\Users\Admin\AppData\Local\Temp\CC49.bat
                    • Size 77B
                    • SHA256 d6cceb3c71b80403364bf142f2fa4624ee0be36a49bac25ed45a497cf1ce9c3a
                    • MD5 SHA1 SHA512

                    DB3E.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\DB3E.exe
                    • Size 768KB
                    • SHA256 abb64aaad687f53c9eb76fc347570e5e774eb05c998ae80b5003d3b807230c5a
                    • MD5 SHA1 SHA512 SSDEEP

                    EDBD.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\EDBD.exe
                    • Size 392KB
                    • SHA256 c3cff5741919b145dc55c678febd01b98d0f9f491b8384ad0fcbdfe38826bd30
                    • MD5 SHA1 SHA512 SSDEEP

                    TmpF59B.tmp

                    • Path C:\Users\Admin\AppData\Local\Temp\TmpF59B.tmp
                    • Size 2KB
                    • SHA256 f3327793e3fd1f3f9a93f58d033ed89ce832443e2695beca9f2b04adba049ed9
                    • MD5 SHA1 SHA512

                    brejsbi

                    • Path C:\Users\Admin\AppData\Roaming\brejsbi
                    • Size 269KB
                    • SHA256 4bdc45ea94a99a7fb4585eb01497564ce83b2a2292d769791fda5b06288b4ca4
                    • MD5 SHA1 SHA512 SSDEEP

                    Microsoft Edge.lnk

                    • Path C:\Users\Admin\Desktop\Microsoft Edge.lnk
                    • Size 2KB
                    • SHA256 c7af9488e7ace6987eb5149f443357f7234e63cb410f247e5f90a77f4d91c1a7
                    • MD5 SHA1 SHA512

                    Google Chrome.lnk

                    • Path C:\Users\Public\Desktop\Google Chrome.lnk
                    • Size 2KB
                    • SHA256 968e1f26ce7ba22fcb0b313d8d2830d79b44c20d226e7045aded5313d4d82925
                    • MD5 SHA1 SHA512

                    memory/2040-154-0x0000000000400000-0x000000000044A000-memory.dmp

                    memory/2040-151-0x0000000000400000-0x000000000044A000-memory.dmp

                    memory/2040-158-0x0000000000CF0000-0x0000000000CF1000-memory.dmp

                    memory/2040-159-0x0000000000400000-0x000000000044A000-memory.dmp

                    memory/2044-1-0x0000000000DF0000-0x0000000000EF0000-memory.dmp

                    memory/2044-5-0x0000000000400000-0x0000000000AEC000-memory.dmp

                    memory/2044-3-0x0000000000400000-0x0000000000AEC000-memory.dmp

                    memory/2044-2-0x0000000000DA0000-0x0000000000DAB000-memory.dmp

                    memory/2168-140-0x0000000003080000-0x00000000030C0000-memory.dmp

                    memory/2168-139-0x0000000003080000-0x00000000030C0000-memory.dmp

                    memory/2168-136-0x0000000003080000-0x00000000030C0000-memory.dmp

                    memory/2168-135-0x0000000000100000-0x0000000000DE5000-memory.dmp

                    memory/2168-133-0x0000000003070000-0x0000000003071000-memory.dmp

                    memory/2168-132-0x0000000003060000-0x0000000003061000-memory.dmp

                    memory/2168-131-0x0000000003040000-0x0000000003041000-memory.dmp

                    memory/2168-128-0x0000000002EF0000-0x0000000002EF1000-memory.dmp

                    memory/2168-130-0x0000000003030000-0x0000000003031000-memory.dmp

                    memory/2168-129-0x0000000003000000-0x0000000003001000-memory.dmp

                    memory/2168-138-0x0000000003080000-0x00000000030C0000-memory.dmp

                    memory/2168-123-0x0000000000100000-0x0000000000DE5000-memory.dmp

                    memory/2168-137-0x0000000003080000-0x00000000030C0000-memory.dmp

                    memory/2168-160-0x0000000000100000-0x0000000000DE5000-memory.dmp

                    memory/2308-67-0x0000000000610000-0x0000000000674000-memory.dmp

                    memory/2308-74-0x0000000002D40000-0x0000000004D40000-memory.dmp

                    memory/2308-68-0x0000000074670000-0x0000000074E21000-memory.dmp

                    memory/2308-76-0x0000000074670000-0x0000000074E21000-memory.dmp

                    memory/2308-134-0x0000000002D40000-0x0000000004D40000-memory.dmp

                    memory/2356-290-0x0000000000400000-0x0000000000AEC000-memory.dmp

                    memory/2356-286-0x0000000000400000-0x0000000000AEC000-memory.dmp

                    memory/2356-285-0x0000000000D60000-0x0000000000E60000-memory.dmp

                    memory/2532-25-0x0000000000400000-0x0000000000537000-memory.dmp

                    memory/2532-38-0x0000000000400000-0x0000000000537000-memory.dmp

                    memory/2532-22-0x0000000000400000-0x0000000000537000-memory.dmp

                    memory/2532-24-0x0000000000400000-0x0000000000537000-memory.dmp

                    memory/2532-26-0x0000000000400000-0x0000000000537000-memory.dmp

                    memory/2604-287-0x0000000002460000-0x0000000002476000-memory.dmp

                    memory/2780-41-0x0000000002760000-0x00000000027F3000-memory.dmp

                    memory/2968-20-0x0000000002870000-0x0000000002903000-memory.dmp

                    memory/2968-21-0x00000000029C0000-0x0000000002ADB000-memory.dmp

                    memory/3220-4-0x00000000030C0000-0x00000000030D6000-memory.dmp

                    memory/3220-164-0x0000000001150000-0x0000000001151000-memory.dmp

                    memory/3964-47-0x0000000000400000-0x0000000000537000-memory.dmp

                    memory/3964-44-0x0000000000400000-0x0000000000537000-memory.dmp

                    memory/3964-45-0x0000000000400000-0x0000000000537000-memory.dmp

                    memory/4588-114-0x0000000074670000-0x0000000074E21000-memory.dmp

                    memory/4588-95-0x0000000005DA0000-0x0000000005E16000-memory.dmp

                    memory/4588-71-0x0000000000400000-0x0000000000452000-memory.dmp

                    memory/4588-106-0x0000000005370000-0x0000000005380000-memory.dmp

                    memory/4588-107-0x0000000006870000-0x00000000068D6000-memory.dmp

                    memory/4588-109-0x00000000076E0000-0x00000000078A2000-memory.dmp

                    memory/4588-105-0x0000000006700000-0x000000000674C000-memory.dmp

                    memory/4588-99-0x0000000006AA0000-0x00000000070B8000-memory.dmp

                    memory/4588-80-0x0000000005370000-0x0000000005380000-memory.dmp

                    memory/4588-78-0x0000000074670000-0x0000000074E21000-memory.dmp

                    memory/4588-110-0x0000000007DE0000-0x000000000830C000-memory.dmp

                    memory/4588-103-0x0000000006530000-0x0000000006542000-memory.dmp

                    memory/4588-102-0x00000000065F0000-0x00000000066FA000-memory.dmp

                    memory/4588-96-0x0000000006460000-0x000000000647E000-memory.dmp

                    memory/4588-79-0x0000000005190000-0x000000000519A000-memory.dmp

                    memory/4588-108-0x00000000071C0000-0x0000000007210000-memory.dmp

                    memory/4588-75-0x0000000005670000-0x0000000005C16000-memory.dmp

                    memory/4588-104-0x0000000006590000-0x00000000065CC000-memory.dmp

                    memory/4588-77-0x00000000051A0000-0x0000000005232000-memory.dmp

                    memory/4976-147-0x00000000004D0000-0x000000000052E000-memory.dmp

                    memory/4976-250-0x0000000002780000-0x0000000004780000-memory.dmp

                    memory/4976-157-0x0000000002780000-0x0000000004780000-memory.dmp

                    memory/4976-156-0x0000000073940000-0x00000000740F1000-memory.dmp

                    memory/4976-148-0x0000000073940000-0x00000000740F1000-memory.dmp