Analysis

  • max time kernel
    150s
  • max time network
    110s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    17-11-2020 06:50

General

  • Target

    lkx111.exe

  • Size

    358KB

  • MD5

    ce8e9e7376b8f0cd83a0330c2b3a77c1

  • SHA1

    fe98b50cca96ce2a2256d48dac65b9d0a3a74283

  • SHA256

    b0127f59eb38fd379e87dccace57c6c1f7922dd54b752b3c0f6f62b3358a763d

  • SHA512

    5f193ccffaa444bbf0ca543f01832e5dae3dbad105d9c52de58d9ee8edf10546c2f5625ab22c2eafe718f1c115b4925c423270c9b2de5f5a3d7cfbd018b08f24

Malware Config

Extracted

Path

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

Ransom Note
YOUR FILES ARE ENCRYPTED Don't worry,you can return all your files! If you want to restore them, follow this link: email [email protected] YOUR ID If you have not been answered via the link within 12 hours,Tox - 1123AA3360A5AFB77D928C4CD99E9EF66EF28FCEEE1F840B93456FD9CE562B7F92204B0D8904 please download - https://tox.chat/download.html or http://pexdatax.com/ write to us by e-mail: [email protected] 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.
URLs

https://tox.chat/download.html

http://pexdatax.com/

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 3 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) 70 IoCs
  • Drops file in System32 directory 2 IoCs
  • Modifies service 2 TTPs 5 IoCs
  • Drops file in Program Files directory 35306 IoCs
  • Interacts with shadow copies 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 538 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\lkx111.exe
    "C:\Users\Admin\AppData\Local\Temp\lkx111.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:500
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1804
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1444
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:200
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3996
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:3300
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3296
        • 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:184
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:284
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Modifies service
            • Suspicious use of AdjustPrivilegeToken
            PID:2388

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            MD5

            c9d30948be2023327fd679f41cfa2e9c

            SHA1

            591bbe4011de264c0107ec930e00fa3676549e29

            SHA256

            20695fbc4ac55b69cc7bfc0e3952a9dda602fbe507628a0c3f5d9b6589e3a138

            SHA512

            4a5672def44f747c73532346facd23915e9d71b4dca7ac6c4246ce349031bb25ecb42e66113f741a2f6b9b17a7013a1b3beecc95ff59a30f0846a4a92fb6f459

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

            MD5

            c9d30948be2023327fd679f41cfa2e9c

            SHA1

            591bbe4011de264c0107ec930e00fa3676549e29

            SHA256

            20695fbc4ac55b69cc7bfc0e3952a9dda602fbe507628a0c3f5d9b6589e3a138

            SHA512

            4a5672def44f747c73532346facd23915e9d71b4dca7ac6c4246ce349031bb25ecb42e66113f741a2f6b9b17a7013a1b3beecc95ff59a30f0846a4a92fb6f459

          • memory/184-79-0x0000000000000000-mapping.dmp

          • memory/200-4-0x0000000000000000-mapping.dmp

          • memory/284-80-0x0000000000000000-mapping.dmp

          • memory/500-0-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

            Filesize

            4KB

          • memory/1444-2-0x0000000000000000-mapping.dmp

          • memory/1804-1-0x0000000000000000-mapping.dmp

          • memory/3296-78-0x0000000000000000-mapping.dmp

          • memory/3300-77-0x0000000000000000-mapping.dmp

          • memory/3996-76-0x0000000000000000-mapping.dmp