Analysis

  • max time kernel
    166s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/10/2022, 03:02

General

  • Target
    file.exe
  • Size 208KB
  • Sample221014-djfp7sdfgn
  • SHA256 4b8eec2c8380de6d1e69f02a5967eb98e62dab346bafa2cbd881721330ecf0fd
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • djvu

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

Attributes
  • extension

    .powz

  • offline_id

    tHl9RvVtHhFQisMomKMdXzz2soNLhV0cuok85it1

  • 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-oTIha7SI4s 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: 0581Jhyjd

rsa_pubkey.plain

Extracted

Family
  • vidar

Version
  • 55

Botnet
  • 517

C2
  • https://t.me/truewallets

  • https://mas.to/@zara99

  • http://116.203.10.3:80

Attributes
  • profile_id

    517

Signatures

  • Detected Djvu ransomware 10 IoCs
  • Detects Smokeloader packer 3 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 11 IoCs
  • VMProtect packed file 6 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Loads dropped DLL 1 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 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 IoCs

    SCSI 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 64 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:4476
  • C:\Users\Admin\AppData\Local\Temp\2892.exe
    C:\Users\Admin\AppData\Local\Temp\2892.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:792
    • C:\Users\Admin\AppData\Local\Temp\2892.exe
      C:\Users\Admin\AppData\Local\Temp\2892.exe
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1504
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\db53b7aa-f9bc-43af-8667-9e55ff6ab49c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:212
      • C:\Users\Admin\AppData\Local\Temp\2892.exe
        "C:\Users\Admin\AppData\Local\Temp\2892.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1572
        • C:\Users\Admin\AppData\Local\Temp\2892.exe
          "C:\Users\Admin\AppData\Local\Temp\2892.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Suspicious use of WriteProcessMemory
          PID:5092
          • C:\Users\Admin\AppData\Local\a7c7b989-745d-4bef-a416-a5a86a9cb632\build2.exe
            "C:\Users\Admin\AppData\Local\a7c7b989-745d-4bef-a416-a5a86a9cb632\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3752
            • C:\Users\Admin\AppData\Local\a7c7b989-745d-4bef-a416-a5a86a9cb632\build2.exe
              "C:\Users\Admin\AppData\Local\a7c7b989-745d-4bef-a416-a5a86a9cb632\build2.exe"
              6⤵
              • Executes dropped EXE
              PID:3880
          • C:\Users\Admin\AppData\Local\a7c7b989-745d-4bef-a416-a5a86a9cb632\build3.exe
            "C:\Users\Admin\AppData\Local\a7c7b989-745d-4bef-a416-a5a86a9cb632\build3.exe"
            5⤵
            • Executes dropped EXE
            PID:1116
            • 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:2200
  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\36FA.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1124
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\36FA.dll
      2⤵
      • Loads dropped DLL
      PID:1716
  • C:\Users\Admin\AppData\Local\Temp\925A.exe
    C:\Users\Admin\AppData\Local\Temp\925A.exe
    1⤵
    • Executes dropped EXE
    PID:3400
  • C:\Users\Admin\AppData\Local\Temp\F069.exe
    C:\Users\Admin\AppData\Local\Temp\F069.exe
    1⤵
    • Executes dropped EXE
    PID:1900
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1900 -s 448
      2⤵
      • Program crash
      PID:5060
  • C:\Users\Admin\AppData\Local\Temp\F358.exe
    C:\Users\Admin\AppData\Local\Temp\F358.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:3924
  • C:\Users\Admin\AppData\Local\Temp\F731.exe
    C:\Users\Admin\AppData\Local\Temp\F731.exe
    1⤵
    • Executes dropped EXE
    PID:400
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
      PID:4336
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe
      1⤵
        PID:1220
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1900 -ip 1900
        1⤵
          PID:4884

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
              • Size 2KB
              • SHA256 cef9e0d09bcefec36de16ecca1a53665018bae69aac8c5350e5e74594574b877
              • MD5 SHA1 SHA512

              B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
              • Size 1KB
              • SHA256 e88f513b287a2aaa2118d51d71a20ff6cd04dacb2bbafba25676fc0ade7874b7
              • MD5 SHA1 SHA512

              07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
              • Size 488B
              • SHA256 2bf342fc331bd46b044baa676bca557297767fca01a01487b9654a2f51656f9f
              • MD5 SHA1 SHA512

              B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
              • Size 482B
              • SHA256 17a6f66d8e2e5b39c230ffc9a980f8d6ea852749f752099c49b156db3f8bc8fe
              • MD5 SHA1 SHA512

              2892.exe

              • Path C:\Users\Admin\AppData\Local\Temp\2892.exe
              • Size 729KB
              • SHA256 29b94bd7685ad6653415b852df99d530d9b91537a88e55dcc426c213440b157e
              • MD5 SHA1 SHA512 SSDEEP

              2892.exe

              • Path C:\Users\Admin\AppData\Local\Temp\2892.exe
              • Size 729KB
              • SHA256 29b94bd7685ad6653415b852df99d530d9b91537a88e55dcc426c213440b157e
              • MD5 SHA1 SHA512 SSDEEP

              2892.exe

              • Path C:\Users\Admin\AppData\Local\Temp\2892.exe
              • Size 729KB
              • SHA256 29b94bd7685ad6653415b852df99d530d9b91537a88e55dcc426c213440b157e
              • MD5 SHA1 SHA512 SSDEEP

              2892.exe

              • Path C:\Users\Admin\AppData\Local\Temp\2892.exe
              • Size 729KB
              • SHA256 29b94bd7685ad6653415b852df99d530d9b91537a88e55dcc426c213440b157e
              • MD5 SHA1 SHA512 SSDEEP

              2892.exe

              • Path C:\Users\Admin\AppData\Local\Temp\2892.exe
              • Size 729KB
              • SHA256 29b94bd7685ad6653415b852df99d530d9b91537a88e55dcc426c213440b157e
              • MD5 SHA1 SHA512 SSDEEP

              36FA.dll

              • Path C:\Users\Admin\AppData\Local\Temp\36FA.dll
              • Size 1.8MB
              • SHA256 6eb3443f2bd9a08a6f47653bb641a73557a3162e8ccd80f9f955abe003aca613
              • MD5 SHA1 SHA512 SSDEEP

              36FA.dll

              • Path C:\Users\Admin\AppData\Local\Temp\36FA.dll
              • Size 1.8MB
              • SHA256 6eb3443f2bd9a08a6f47653bb641a73557a3162e8ccd80f9f955abe003aca613
              • MD5 SHA1 SHA512 SSDEEP

              925A.exe

              • Path C:\Users\Admin\AppData\Local\Temp\925A.exe
              • Size 3.5MB
              • SHA256 a8756585ef0e2e4e7479606e49a56e52c871c24b65c356b6b38f29cbae300ecc
              • MD5 SHA1 SHA512 SSDEEP

              925A.exe

              • Path C:\Users\Admin\AppData\Local\Temp\925A.exe
              • Size 3.5MB
              • SHA256 a8756585ef0e2e4e7479606e49a56e52c871c24b65c356b6b38f29cbae300ecc
              • MD5 SHA1 SHA512 SSDEEP

              F069.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F069.exe
              • Size 207KB
              • SHA256 b6ccb6e20884041b446c5097c3c3e188a6fe798fb9dc6dc77fe3ab9769f939d6
              • MD5 SHA1 SHA512 SSDEEP

              F069.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F069.exe
              • Size 207KB
              • SHA256 b6ccb6e20884041b446c5097c3c3e188a6fe798fb9dc6dc77fe3ab9769f939d6
              • MD5 SHA1 SHA512 SSDEEP

              F358.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F358.exe
              • Size 225KB
              • SHA256 51e6b31251501c02a5fd7fa4cab55f2b0e97a50a04abc6410ae81b5ecda8001a
              • MD5 SHA1 SHA512 SSDEEP

              F358.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F358.exe
              • Size 225KB
              • SHA256 51e6b31251501c02a5fd7fa4cab55f2b0e97a50a04abc6410ae81b5ecda8001a
              • MD5 SHA1 SHA512 SSDEEP

              F731.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F731.exe
              • Size 3.5MB
              • SHA256 a8756585ef0e2e4e7479606e49a56e52c871c24b65c356b6b38f29cbae300ecc
              • MD5 SHA1 SHA512 SSDEEP

              F731.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F731.exe
              • Size 3.5MB
              • SHA256 a8756585ef0e2e4e7479606e49a56e52c871c24b65c356b6b38f29cbae300ecc
              • MD5 SHA1 SHA512 SSDEEP

              build2.exe

              • Path C:\Users\Admin\AppData\Local\a7c7b989-745d-4bef-a416-a5a86a9cb632\build2.exe
              • Size 321KB
              • SHA256 2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6
              • MD5 SHA1 SHA512 SSDEEP

              build2.exe

              • Path C:\Users\Admin\AppData\Local\a7c7b989-745d-4bef-a416-a5a86a9cb632\build2.exe
              • Size 321KB
              • SHA256 2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6
              • MD5 SHA1 SHA512 SSDEEP

              build2.exe

              • Path C:\Users\Admin\AppData\Local\a7c7b989-745d-4bef-a416-a5a86a9cb632\build2.exe
              • Size 321KB
              • SHA256 2a5101345def285c8f52ad39f00261ba9e0375d3de73206d0b8c72ce3b6259c6
              • MD5 SHA1 SHA512 SSDEEP

              build3.exe

              • Path C:\Users\Admin\AppData\Local\a7c7b989-745d-4bef-a416-a5a86a9cb632\build3.exe
              • Size 9KB
              • SHA256 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
              • MD5 SHA1 SHA512 SSDEEP

              build3.exe

              • Path C:\Users\Admin\AppData\Local\a7c7b989-745d-4bef-a416-a5a86a9cb632\build3.exe
              • Size 9KB
              • SHA256 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
              • MD5 SHA1 SHA512 SSDEEP

              2892.exe

              • Path C:\Users\Admin\AppData\Local\db53b7aa-f9bc-43af-8667-9e55ff6ab49c\2892.exe
              • Size 729KB
              • SHA256 29b94bd7685ad6653415b852df99d530d9b91537a88e55dcc426c213440b157e
              • MD5 SHA1 SHA512 SSDEEP

              memory/400-195-0x0000000140000000-0x000000014060F000-memory.dmp

              memory/792-147-0x00000000022E2000-0x0000000002373000-memory.dmp

              memory/792-150-0x0000000002380000-0x000000000249B000-memory.dmp

              memory/1220-208-0x0000000000B60000-0x0000000000B6C000-memory.dmp

              memory/1504-152-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1504-149-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1504-160-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1504-151-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1504-165-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1504-146-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/1572-171-0x00000000022AB000-0x000000000233C000-memory.dmp

              memory/1716-162-0x00000000032E0000-0x000000000338E000-memory.dmp

              memory/1716-161-0x00000000032E0000-0x000000000338E000-memory.dmp

              memory/1716-164-0x00000000031A0000-0x00000000032DF000-memory.dmp

              memory/1716-154-0x00000000031A0000-0x00000000032DF000-memory.dmp

              memory/1716-159-0x0000000002B40000-0x0000000002C03000-memory.dmp

              memory/1716-153-0x0000000002ED0000-0x0000000003051000-memory.dmp

              memory/1900-210-0x0000000000400000-0x0000000000439000-memory.dmp

              memory/1900-209-0x000000000075E000-0x000000000076F000-memory.dmp

              memory/3400-181-0x0000000140000000-0x000000014060F000-memory.dmp

              memory/3752-216-0x0000000000670000-0x00000000006BF000-memory.dmp

              memory/3752-214-0x000000000074D000-0x0000000000779000-memory.dmp

              memory/3880-221-0x0000000000400000-0x0000000000463000-memory.dmp

              memory/3880-217-0x0000000000400000-0x0000000000463000-memory.dmp

              memory/3880-212-0x0000000000400000-0x0000000000463000-memory.dmp

              memory/3924-207-0x0000000000400000-0x0000000000596000-memory.dmp

              memory/3924-205-0x000000000092D000-0x000000000093D000-memory.dmp

              memory/3924-206-0x00000000006E0000-0x00000000006E9000-memory.dmp

              memory/3924-223-0x0000000000400000-0x0000000000596000-memory.dmp

              memory/4336-204-0x0000000000A10000-0x0000000000A7B000-memory.dmp

              memory/4336-201-0x0000000000A80000-0x0000000000AF5000-memory.dmp

              memory/4476-137-0x0000000000400000-0x0000000000439000-memory.dmp

              memory/4476-133-0x0000000000580000-0x0000000000589000-memory.dmp

              memory/4476-136-0x0000000000580000-0x0000000000589000-memory.dmp

              memory/4476-132-0x000000000076E000-0x000000000077F000-memory.dmp

              memory/4476-135-0x000000000076E000-0x000000000077F000-memory.dmp

              memory/4476-134-0x0000000000400000-0x0000000000439000-memory.dmp

              memory/5092-177-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/5092-170-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/5092-169-0x0000000000400000-0x0000000000537000-memory.dmp