Analysis

  • max time kernel
    159s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/10/2022, 09:02

General

  • Target
    file.exe
  • Size 194KB
  • Sample221020-kzfhpsefdj
  • SHA256 18aa090e0b3d0a2a34083e13726f78c8efd60cf5c0a425859a4fa2dfd6330423
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • djvu

C2
  • http://winnlinne.com/lancer/get.php

Attributes
  • extension

    .tury

  • offline_id

    Uz66zEbmA32arcxwT81zZhkb23026oHz5iSp8qt1

  • payload_url

    http://rgyui.top/dl/build2.exe

    http://winnlinne.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-o7UXxOstmw 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: 0585Jhyjd

rsa_pubkey.plain

Extracted

Family
  • danabot

Attributes
  • embedded_hash

    56951C922035D696BFCE443750496462

  • type

    loader

Signatures

  • Danabot

    Danabot is a modular banking Trojan that has been linked with other malware.

  • Detected Djvu ransomware 9 IoCs
  • Detects Smokeloader packer 2 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 7 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 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). Likely ransomware behaviour.

  • Checks SCSI registry key(s) 3 TTPs 45 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:4644
  • C:\Users\Admin\AppData\Local\Temp\6A72.exe
    C:\Users\Admin\AppData\Local\Temp\6A72.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:5016
  • C:\Users\Admin\AppData\Local\Temp\7272.exe
    C:\Users\Admin\AppData\Local\Temp\7272.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:3968
  • C:\Users\Admin\AppData\Local\Temp\EBD9.exe
    C:\Users\Admin\AppData\Local\Temp\EBD9.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1380
    • C:\Users\Admin\AppData\Local\Temp\EBD9.exe
      C:\Users\Admin\AppData\Local\Temp\EBD9.exe
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:3488
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\ba6bd237-a6f5-49fd-9bc5-95ecda6135c9" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4036
      • C:\Users\Admin\AppData\Local\Temp\EBD9.exe
        "C:\Users\Admin\AppData\Local\Temp\EBD9.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3456
        • C:\Users\Admin\AppData\Local\Temp\EBD9.exe
          "C:\Users\Admin\AppData\Local\Temp\EBD9.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Executes dropped EXE
          PID:944
  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\EFA3.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4884
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\EFA3.dll
      2⤵
      • Loads dropped DLL
      PID:176
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
    • Accesses Microsoft Outlook profiles
    • outlook_office_path
    • outlook_win_path
    PID:1948
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe
    1⤵
      PID:3772
    • C:\Users\Admin\AppData\Local\Temp\CFF.exe
      C:\Users\Admin\AppData\Local\Temp\CFF.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2044
      • C:\Windows\SysWOW64\agentactivationruntimestarter.exe
        C:\Windows\system32\agentactivationruntimestarter.exe
        2⤵
          PID:3884
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k AarSvcGroup -p -s AarSvc
        1⤵
        • Checks SCSI registry key(s)
        • Suspicious use of AdjustPrivilegeToken
        PID:732
      • C:\Windows\system32\AUDIODG.EXE
        C:\Windows\system32\AUDIODG.EXE 0x508 0x50c
        1⤵
          PID:5052

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              6A72.exe

              • Path C:\Users\Admin\AppData\Local\Temp\6A72.exe
              • Size 193KB
              • SHA256 d7b7d7150d8282dfdfc0de64b54f2c66c82b5e21d180c2dc3566a3205186278f
              • MD5 SHA1 SHA512 SSDEEP

              6A72.exe

              • Path C:\Users\Admin\AppData\Local\Temp\6A72.exe
              • Size 193KB
              • SHA256 d7b7d7150d8282dfdfc0de64b54f2c66c82b5e21d180c2dc3566a3205186278f
              • MD5 SHA1 SHA512 SSDEEP

              7272.exe

              • Path C:\Users\Admin\AppData\Local\Temp\7272.exe
              • Size 195KB
              • SHA256 ad7f2ed48ed234dddbb96f3d781704307f0d9def1ea5291d1832597f7aea2e92
              • MD5 SHA1 SHA512 SSDEEP

              7272.exe

              • Path C:\Users\Admin\AppData\Local\Temp\7272.exe
              • Size 195KB
              • SHA256 ad7f2ed48ed234dddbb96f3d781704307f0d9def1ea5291d1832597f7aea2e92
              • MD5 SHA1 SHA512 SSDEEP

              CFF.exe

              • Path C:\Users\Admin\AppData\Local\Temp\CFF.exe
              • Size 1.2MB
              • SHA256 3d71d4985c8c7b1183fcee2a969b6267f72e6f3a99f794e52e01229d1e7e5bf0
              • MD5 SHA1 SHA512 SSDEEP

              CFF.exe

              • Path C:\Users\Admin\AppData\Local\Temp\CFF.exe
              • Size 1.2MB
              • SHA256 3d71d4985c8c7b1183fcee2a969b6267f72e6f3a99f794e52e01229d1e7e5bf0
              • MD5 SHA1 SHA512 SSDEEP

              EBD9.exe

              • Path C:\Users\Admin\AppData\Local\Temp\EBD9.exe
              • Size 713KB
              • SHA256 ee58c869d7a419d55fe3e6a8cf001ffff107d5d922951b3999b79b2b6c7e1c27
              • MD5 SHA1 SHA512 SSDEEP

              EBD9.exe

              • Path C:\Users\Admin\AppData\Local\Temp\EBD9.exe
              • Size 713KB
              • SHA256 ee58c869d7a419d55fe3e6a8cf001ffff107d5d922951b3999b79b2b6c7e1c27
              • MD5 SHA1 SHA512 SSDEEP

              EBD9.exe

              • Path C:\Users\Admin\AppData\Local\Temp\EBD9.exe
              • Size 713KB
              • SHA256 ee58c869d7a419d55fe3e6a8cf001ffff107d5d922951b3999b79b2b6c7e1c27
              • MD5 SHA1 SHA512 SSDEEP

              EBD9.exe

              • Path C:\Users\Admin\AppData\Local\Temp\EBD9.exe
              • Size 713KB
              • SHA256 ee58c869d7a419d55fe3e6a8cf001ffff107d5d922951b3999b79b2b6c7e1c27
              • MD5 SHA1 SHA512 SSDEEP

              EBD9.exe

              • Path C:\Users\Admin\AppData\Local\Temp\EBD9.exe
              • Size 713KB
              • SHA256 ee58c869d7a419d55fe3e6a8cf001ffff107d5d922951b3999b79b2b6c7e1c27
              • MD5 SHA1 SHA512 SSDEEP

              EFA3.dll

              • Path C:\Users\Admin\AppData\Local\Temp\EFA3.dll
              • Size 1.8MB
              • SHA256 223759e9e0c53c73d5255e47c1b455d7ccda1d050809446300485c0747d16981
              • MD5 SHA1 SHA512 SSDEEP

              EFA3.dll

              • Path C:\Users\Admin\AppData\Local\Temp\EFA3.dll
              • Size 1.8MB
              • SHA256 223759e9e0c53c73d5255e47c1b455d7ccda1d050809446300485c0747d16981
              • MD5 SHA1 SHA512 SSDEEP

              EBD9.exe

              • Path C:\Users\Admin\AppData\Local\ba6bd237-a6f5-49fd-9bc5-95ecda6135c9\EBD9.exe
              • Size 713KB
              • SHA256 ee58c869d7a419d55fe3e6a8cf001ffff107d5d922951b3999b79b2b6c7e1c27
              • MD5 SHA1 SHA512 SSDEEP

              memory/176-169-0x0000000003130000-0x000000000325C000-memory.dmp

              memory/176-172-0x0000000003260000-0x000000000330E000-memory.dmp

              memory/176-166-0x0000000002970000-0x0000000002A32000-memory.dmp

              memory/176-168-0x0000000002ED0000-0x0000000002FFC000-memory.dmp

              memory/944-193-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/944-195-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/944-191-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1380-167-0x0000000002270000-0x000000000238B000-memory.dmp

              memory/1380-165-0x000000000201E000-0x00000000020B0000-memory.dmp

              memory/1948-158-0x0000000000470000-0x00000000004E5000-memory.dmp

              memory/1948-159-0x0000000000400000-0x000000000046B000-memory.dmp

              memory/1948-171-0x0000000000400000-0x000000000046B000-memory.dmp

              memory/2044-187-0x0000000000400000-0x00000000006CE000-memory.dmp

              memory/2044-185-0x0000000002328000-0x0000000002446000-memory.dmp

              memory/2044-186-0x00000000024F0000-0x00000000027B2000-memory.dmp

              memory/2044-196-0x0000000000400000-0x00000000006CE000-memory.dmp

              memory/3456-192-0x0000000001F93000-0x0000000002025000-memory.dmp

              memory/3488-170-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/3488-164-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/3488-175-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/3488-162-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/3488-183-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/3772-160-0x0000000000E00000-0x0000000000E0C000-memory.dmp

              memory/3968-147-0x0000000000400000-0x0000000000436000-memory.dmp

              memory/3968-146-0x00000000005D9000-0x00000000005EA000-memory.dmp

              memory/3968-148-0x0000000000400000-0x0000000000436000-memory.dmp

              memory/4644-135-0x0000000000400000-0x0000000000436000-memory.dmp

              memory/4644-132-0x0000000000619000-0x000000000062A000-memory.dmp

              memory/4644-133-0x0000000000590000-0x0000000000599000-memory.dmp

              memory/4644-134-0x0000000000400000-0x0000000000436000-memory.dmp

              memory/5016-142-0x0000000000400000-0x0000000000435000-memory.dmp

              memory/5016-139-0x0000000000619000-0x000000000062A000-memory.dmp

              memory/5016-140-0x0000000000580000-0x0000000000589000-memory.dmp

              memory/5016-141-0x0000000000400000-0x0000000000435000-memory.dmp