Overview

overview

10

Static

static

05656a2153...75.exe

windows7_x64

10

05656a2153...75.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    27-05-2022 18:03

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General

  • Target

    05656a2153304dee7c74adbd4556f8f25b907baff9bc46f6c7b390ef06f5db75.exe

  • Size

    302KB

  • MD5

    b34062919d66069128222082bb5dd511

  • SHA1

    085edde0c70d601777e3dad6d8e30e45072f3a66

  • SHA256

    05656a2153304dee7c74adbd4556f8f25b907baff9bc46f6c7b390ef06f5db75

  • SHA512

    b0ad684303702d23143be2400507083a3958492431e448285a83e93620d3c8095b9e6af33b41d5f2067729674c1da1527d6daf9fa3dc24a3daa9db5e4c93ffd5

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta

Ransom Note
All your files have been encrypted! All your files have been encrypted due to a security problem with your PC. If you want to restore them, write us to the e-mail [email protected] Write this ID in the title of your message C1C83FA7 In case of no answer in 24 hours write us to theese e-mails: [email protected] You have to pay for decryption in Bitcoins. The price depends on how fast you write to us. After payment we will send you the decryption tool that will decrypt all your files. Free decryption as guarantee Before paying you can send us up to 1 file for free decryption. The total size of files must be less than 1Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) How to obtain Bitcoins The easiest way to buy bitcoins is LocalBitcoins site. You have to register, click 'Buy bitcoins', and select the seller by payment method and price. https://localbitcoins.com/buy_bitcoins Also you can find other places to buy Bitcoins and beginners guide here: http://www.coindesk.com/information/how-can-i-buy-bitcoins/ Attention! Do not rename encrypted files. Do not try to decrypt your data using third party software, it may cause permanent data loss. Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Signatures

  • Dharma

    Dharma is a ransomware that uses security software installation to hide malicious activities.

    ransomwaredharma
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Drops desktop.ini file(s) 64 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\05656a2153304dee7c74adbd4556f8f25b907baff9bc46f6c7b390ef06f5db75.exe
    "C:\Users\Admin\AppData\Local\Temp\05656a2153304dee7c74adbd4556f8f25b907baff9bc46f6c7b390ef06f5db75.exe"
    1⤵
    • Modifies extensions of user files
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1684
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2072
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:5024
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3784
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:5092
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:4128
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
            PID:4864
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:3444
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:5076

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
            Filesize

            13KB

            MD5

            b540944e3a740d6f7e1ed4c6d6165749

            SHA1

            88b99fd685d9702fe2370222e266a7749c9ab158

            SHA256

            ed2cab4380f3d9848ba1b280eeb1d16d870ce726e02f3da386198874b07238c0

            SHA512

            dd4357bd49eca0f021a6874a1beab82e551a2bb955a426d433a094332406ac699f658dced0ffe07cb8bc4b974996d832c527775fe6e3b0e3bd45cc0d145c32a3

            Download Submit

          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
            Filesize

            13KB

            MD5

            b540944e3a740d6f7e1ed4c6d6165749

            SHA1

            88b99fd685d9702fe2370222e266a7749c9ab158

            SHA256

            ed2cab4380f3d9848ba1b280eeb1d16d870ce726e02f3da386198874b07238c0

            SHA512

            dd4357bd49eca0f021a6874a1beab82e551a2bb955a426d433a094332406ac699f658dced0ffe07cb8bc4b974996d832c527775fe6e3b0e3bd45cc0d145c32a3

            Download Submit

          • memory/1684-132-0x0000000000000000-mapping.dmp

            Download

          • memory/2072-135-0x0000000000000000-mapping.dmp

            Download

          • memory/2116-133-0x00000000001C0000-0x00000000001D9000-memory.dmp

            Filesize

            100KB

            Download

          • memory/2116-134-0x0000000000400000-0x0000000003374000-memory.dmp

            Filesize

            47.5MB

            Download

          • memory/2116-131-0x00000000036B5000-0x00000000036C8000-memory.dmp

            Filesize

            76KB

            Download

          • memory/2116-137-0x00000000036B5000-0x00000000036C8000-memory.dmp

            Filesize

            76KB

            Download

          • memory/2116-130-0x00000000036B5000-0x00000000036C8000-memory.dmp

            Filesize

            76KB

            Download

          • memory/3444-142-0x0000000000000000-mapping.dmp

            Download

          • memory/3784-138-0x0000000000000000-mapping.dmp

            Download

          • memory/4128-140-0x0000000000000000-mapping.dmp

            Download

          • memory/4864-141-0x0000000000000000-mapping.dmp

            Download

          • memory/5024-136-0x0000000000000000-mapping.dmp

            Download

          • memory/5092-139-0x0000000000000000-mapping.dmp

            Download