Analysis

  • max time kernel
    4294212s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20220310-en
  • submitted
    29-03-2022 23:06

General

  • Target

    6aabb6846532b8f7e33637deefd50689ba30193ee72d2742a6c94e8563efff35.exe

  • Size

    535KB

  • MD5

    d7192628b80363c70246a0fe2f8b18f7

  • SHA1

    8b849968bafb4507ff655f4360d3167c0279edf7

  • SHA256

    6aabb6846532b8f7e33637deefd50689ba30193ee72d2742a6c94e8563efff35

  • SHA512

    c76b01a9b7c5c023a9ba676b540edbac4fb0bb3f84cb39e10b7b75f530ecdbefa68ae87b0895d0b3207833563f92af458e0e95dc9bce56d3371978e224259de6

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 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 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6aabb6846532b8f7e33637deefd50689ba30193ee72d2742a6c94e8563efff35.exe
    "C:\Users\Admin\AppData\Local\Temp\6aabb6846532b8f7e33637deefd50689ba30193ee72d2742a6c94e8563efff35.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:1592
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1840
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1792
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:724
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1044
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1376
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:544
        • 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:1768
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:1508
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1228

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            7KB

            MD5

            f52bbccb1307a26631a9fcb693dca91b

            SHA1

            0dbd845688985c69c155c043238deb5ca4541f95

            SHA256

            64f02745b3a6df850be881d6972ae7d8efe10d61c23b19a716b8810a06d3f658

            SHA512

            d48104284142b556c3d94106977f704642189c17a8203d4a6eccea7bd3e4281d51eb58a7f61cbfe55f35193f3d9c7dc145b925187b2005a59a09e570c4b1f3cd

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

            Filesize

            7KB

            MD5

            f52bbccb1307a26631a9fcb693dca91b

            SHA1

            0dbd845688985c69c155c043238deb5ca4541f95

            SHA256

            64f02745b3a6df850be881d6972ae7d8efe10d61c23b19a716b8810a06d3f658

            SHA512

            d48104284142b556c3d94106977f704642189c17a8203d4a6eccea7bd3e4281d51eb58a7f61cbfe55f35193f3d9c7dc145b925187b2005a59a09e570c4b1f3cd

          • memory/544-62-0x0000000000000000-mapping.dmp

          • memory/724-59-0x0000000000000000-mapping.dmp

          • memory/1044-60-0x0000000000000000-mapping.dmp

          • memory/1376-61-0x0000000000000000-mapping.dmp

          • memory/1508-65-0x000007FEFB5A1000-0x000007FEFB5A3000-memory.dmp

            Filesize

            8KB

          • memory/1508-64-0x0000000000000000-mapping.dmp

          • memory/1592-57-0x00000000003D0000-0x00000000003ED000-memory.dmp

            Filesize

            116KB

          • memory/1592-54-0x0000000000400000-0x000000000048B000-memory.dmp

            Filesize

            556KB

          • memory/1592-55-0x00000000750C1000-0x00000000750C3000-memory.dmp

            Filesize

            8KB

          • memory/1768-63-0x0000000000000000-mapping.dmp

          • memory/1792-58-0x0000000000000000-mapping.dmp

          • memory/1840-56-0x0000000000000000-mapping.dmp