Analysis

  • max time kernel
    120s
  • max time network
    97s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    21-01-2023 04:20

General

  • Target

    575f5025100185183eb2eff4b301f25402973b72fbd4e3ba84a7dac0b89ca4b4.exe

  • Size

    92KB

  • MD5

    029b9543eedadb6b07be801f6813dbaa

  • SHA1

    f83b6342fb36b3b183aefd7755f29edc45915aa9

  • SHA256

    575f5025100185183eb2eff4b301f25402973b72fbd4e3ba84a7dac0b89ca4b4

  • SHA512

    0a84a5d688a3972150f57093c7acdfb4e2195d56832114d45023b626498966bb2fe813c05de39463db75016bf461017a082ea8a317ada9bcbb2b7f13699ef6de

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4A6+bBqsG/HKF5K/bDAWtppZSS:Qw+asqN5aW/hL7A6KjsopZN

Malware Config

Extracted

Path

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

Ransom Note
All FILES ENCRYPTED "RSA1024" All YOUR FILES HAVE BEEN ENCRYPTED!!! IF YOU WANT TO RESTORE THEM, WRITE US TO THE E-MAIL [email protected] IN THE LETTER WRITE YOUR ID, YOUR ID CB74F34D IF YOU ARE NOT ANSWERED, WRITE TO EMAIL: [email protected] YOUR SECRET KEY WILL BE STORED ON A SERVER 7 DAYS, AFTER 7 DAYS IT MAY BE OVERWRITTEN BY OTHER KEYS, DON'T PULL TIME, WAITING YOUR EMAIL FREE DECRYPTION FOR PROOF 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.) DECRYPTION PROCESS: When you make sure of decryption possibility transfer the money to our bitcoin wallet. As soon as we receive the money we will send you: 1. Decryption program. 2. Detailed instruction for decryption. 3. And individual keys for decrypting your files. !WARNING! 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.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies extensions of user files 4 IoCs

    Ransomware generally changes the extension on encrypted files.

  • 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.

  • Adds Run key to start application 2 TTPs 3 IoCs
  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\575f5025100185183eb2eff4b301f25402973b72fbd4e3ba84a7dac0b89ca4b4.exe
    "C:\Users\Admin\AppData\Local\Temp\575f5025100185183eb2eff4b301f25402973b72fbd4e3ba84a7dac0b89ca4b4.exe"
    1⤵
    • Modifies extensions of user files
    • 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:1896
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:412
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1464
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3820
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4964
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2488
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:4396
        • 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:4880
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:4800
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3624

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            13KB

            MD5

            26b639643a428242be5c0f51b1ae67a5

            SHA1

            ede89297a2f89c08d8ef3dfd27f310f25fca537e

            SHA256

            4a64d841ba94c1313398e9733cebfef2c09157ec550f93dc1885da1d3e31fe98

            SHA512

            899a833ff6a1cebc57d8c3b4d129c7fd9fd90d9f70440d5dfe8dd1dd6dd463ddd53ad7f360eca303716a0c90b40f994640f5c6e8fd6138838484e8dc2e70582f

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

            Filesize

            13KB

            MD5

            26b639643a428242be5c0f51b1ae67a5

            SHA1

            ede89297a2f89c08d8ef3dfd27f310f25fca537e

            SHA256

            4a64d841ba94c1313398e9733cebfef2c09157ec550f93dc1885da1d3e31fe98

            SHA512

            899a833ff6a1cebc57d8c3b4d129c7fd9fd90d9f70440d5dfe8dd1dd6dd463ddd53ad7f360eca303716a0c90b40f994640f5c6e8fd6138838484e8dc2e70582f

          • memory/412-153-0x0000000000000000-mapping.dmp

          • memory/1464-156-0x0000000000000000-mapping.dmp

          • memory/1896-154-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-137-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-126-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-127-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-128-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-129-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-130-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-123-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-132-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-133-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-134-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-135-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-136-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-157-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-138-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-139-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-140-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-158-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-142-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-143-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-145-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-144-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-146-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-147-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-148-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-149-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-150-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-151-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-152-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-124-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-120-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-155-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-131-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-125-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-141-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-159-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-160-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-161-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-162-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-164-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-202-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-165-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-166-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-200-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-201-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-169-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-121-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-171-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-172-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-173-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-174-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-175-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-176-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-177-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-178-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-179-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-180-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-181-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-182-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-183-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/1896-122-0x0000000077DE0000-0x0000000077F6E000-memory.dmp

            Filesize

            1.6MB

          • memory/2488-168-0x0000000000000000-mapping.dmp

          • memory/3820-163-0x0000000000000000-mapping.dmp

          • memory/4396-170-0x0000000000000000-mapping.dmp

          • memory/4800-185-0x0000000000000000-mapping.dmp

          • memory/4880-184-0x0000000000000000-mapping.dmp

          • memory/4964-167-0x0000000000000000-mapping.dmp