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Analysis

  • max time kernel
    136s
  • max time network
    136s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    08/07/2020, 10:56

General

  • Target

    744ec52f480cb86b7e84fbbfe4b1880f57219dae5683b746f88d6ee4ba394751.exe

  • Size

    780KB

  • MD5

    9bd737b220a4040dbcaf17f48be54a98

  • SHA1

    9a64f521040e7250e8ae523cf2cc8f75753e4cf7

  • SHA256

    744ec52f480cb86b7e84fbbfe4b1880f57219dae5683b746f88d6ee4ba394751

  • SHA512

    135e292c99e65ad22b20d446130f4a96e1de896a642eb5cf262957ad5fe78f867cc980270d8e8b636615ecbf4f539f8330bf1664aea2a1c0005a441d0f838d68

Malware Config

Extracted

Path

C:\_readme.txt

Ransom Note
ATTENTION! Don't worry, you can return all your files! All your files like photos, 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-9fpnK9F5nP 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: 0239yjnkjddrtgjAPJNEQoue2941bbvln0FlNgqZ8mrbh5FmCQGfK
URLs

https://we.tl/t-9fpnK9F5nP

Signatures

  • Suspicious use of WriteProcessMemory 27 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Kills process with taskkill 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Loads dropped DLL 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Executes dropped EXE 5 IoCs
  • Program crash 1 IoCs
  • Adds Run entry to start application 2 TTPs 1 IoCs
  • Checks for installed software on the system 1 TTPs 28 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Reads user/profile data of local email clients 2 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\744ec52f480cb86b7e84fbbfe4b1880f57219dae5683b746f88d6ee4ba394751.exe
    "C:\Users\Admin\AppData\Local\Temp\744ec52f480cb86b7e84fbbfe4b1880f57219dae5683b746f88d6ee4ba394751.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Adds Run entry to start application
    PID:2804
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\0db278a6-54cf-48d3-8e43-39a1028bba5d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      PID:1964
    • C:\Users\Admin\AppData\Local\Temp\744ec52f480cb86b7e84fbbfe4b1880f57219dae5683b746f88d6ee4ba394751.exe
      "C:\Users\Admin\AppData\Local\Temp\744ec52f480cb86b7e84fbbfe4b1880f57219dae5683b746f88d6ee4ba394751.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • Suspicious use of WriteProcessMemory
      • Suspicious behavior: EnumeratesProcesses
      PID:2160
      • C:\Users\Admin\AppData\Local\403ce25a-c329-4d04-b551-bb31bc7d4335\updatewin1.exe
        "C:\Users\Admin\AppData\Local\403ce25a-c329-4d04-b551-bb31bc7d4335\updatewin1.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        • Executes dropped EXE
        PID:3976
        • C:\Users\Admin\AppData\Local\403ce25a-c329-4d04-b551-bb31bc7d4335\updatewin1.exe
          "C:\Users\Admin\AppData\Local\403ce25a-c329-4d04-b551-bb31bc7d4335\updatewin1.exe" --Admin
          4⤵
          • Suspicious use of WriteProcessMemory
          • Executes dropped EXE
          PID:1736
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -Command Set-ExecutionPolicy -Scope CurrentUser RemoteSigned
            5⤵
              PID:3312
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3312 -s 668
                6⤵
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Program crash
                PID:3672
        • C:\Users\Admin\AppData\Local\403ce25a-c329-4d04-b551-bb31bc7d4335\updatewin2.exe
          "C:\Users\Admin\AppData\Local\403ce25a-c329-4d04-b551-bb31bc7d4335\updatewin2.exe"
          3⤵
          • Drops file in Drivers directory
          • Executes dropped EXE
          PID:984
        • C:\Users\Admin\AppData\Local\403ce25a-c329-4d04-b551-bb31bc7d4335\5.exe
          "C:\Users\Admin\AppData\Local\403ce25a-c329-4d04-b551-bb31bc7d4335\5.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          • Suspicious behavior: EnumeratesProcesses
          • Loads dropped DLL
          • Executes dropped EXE
          • Checks for installed software on the system
          • Checks processor information in registry
          PID:296
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\System32\cmd.exe" /c taskkill /im 5.exe /f & erase C:\Users\Admin\AppData\Local\403ce25a-c329-4d04-b551-bb31bc7d4335\5.exe & exit
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:508
            • C:\Windows\SysWOW64\taskkill.exe
              taskkill /im 5.exe /f
              5⤵
              • Kills process with taskkill
              • Suspicious use of AdjustPrivilegeToken
              PID:3880
    • C:\Users\Admin\AppData\Local\0db278a6-54cf-48d3-8e43-39a1028bba5d\744ec52f480cb86b7e84fbbfe4b1880f57219dae5683b746f88d6ee4ba394751.exe
      C:\Users\Admin\AppData\Local\0db278a6-54cf-48d3-8e43-39a1028bba5d\744ec52f480cb86b7e84fbbfe4b1880f57219dae5683b746f88d6ee4ba394751.exe --Task
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      • Executes dropped EXE
      PID:788

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/296-25-0x0000000000E13000-0x0000000000E14000-memory.dmp

      Filesize

      4KB

    • memory/296-26-0x0000000000FD0000-0x0000000000FD1000-memory.dmp

      Filesize

      4KB

    • memory/788-520-0x0000000002A90000-0x0000000002A91000-memory.dmp

      Filesize

      4KB

    • memory/984-16-0x0000000002170000-0x0000000002171000-memory.dmp

      Filesize

      4KB

    • memory/984-24-0x000000000059E000-0x000000000059F000-memory.dmp

      Filesize

      4KB

    • memory/1736-23-0x00000000022C0000-0x00000000022C1000-memory.dmp

      Filesize

      4KB

    • memory/1736-175-0x0000000000544000-0x0000000000547000-memory.dmp

      Filesize

      12KB

    • memory/2160-278-0x0000000003CE0000-0x0000000003CE1000-memory.dmp

      Filesize

      4KB

    • memory/2160-277-0x00000000044E0000-0x00000000044E1000-memory.dmp

      Filesize

      4KB

    • memory/2160-276-0x0000000003CE0000-0x0000000003CE1000-memory.dmp

      Filesize

      4KB

    • memory/2160-6-0x0000000002A30000-0x0000000002A31000-memory.dmp

      Filesize

      4KB

    • memory/2804-1-0x0000000002BB0000-0x0000000002BB1000-memory.dmp

      Filesize

      4KB

    • memory/3672-270-0x0000000004490000-0x0000000004491000-memory.dmp

      Filesize

      4KB

    • memory/3672-250-0x00000000044F0000-0x00000000044F1000-memory.dmp

      Filesize

      4KB

    • memory/3672-268-0x0000000004F40000-0x0000000004F41000-memory.dmp

      Filesize

      4KB

    • memory/3976-12-0x00000000021F0000-0x00000000021F1000-memory.dmp

      Filesize

      4KB

    • memory/3976-20-0x000000000056E000-0x000000000056F000-memory.dmp

      Filesize

      4KB