Overview

overview

10

Static

static

3

553532c3bc...2d.exe

windows11-21h2-x64

10

Resubmissions

14/02/2024, 03:46

240214-ebskgagb2t10

14/02/2024, 03:40

240214-d8m6kshc4210

14/02/2024, 03:37

240214-d6vgwafh5v10

11/09/2020, 08:09

200911-rexcktjp1n10

Analysis

  • max time kernel
    300s
  • max time network
    285s
  • platform
    windows11-21h2_x64
  • resource
    win11-20231222-en
  • resource tags

    arch:x64arch:x86image:win11-20231222-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    14/02/2024, 03:40

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General

  • Target
    553532c3bc00e3b85bcbac054bc4f05cb4fffba6f44a17c663dd37732ce1772d.exe
  • Size 92KB
  • Sample240214-d8m6kshc42
  • SHA256 553532c3bc00e3b85bcbac054bc4f05cb4fffba6f44a17c663dd37732ce1772d
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
dharmapersistenceransomwarespywarestealer

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, 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.

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
  • Renames multiple (541) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • 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).

  • Interacts with shadow copies 2 TTPs 2 IoCs

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

    ransomware
  • Modifies registry class 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\553532c3bc00e3b85bcbac054bc4f05cb4fffba6f44a17c663dd37732ce1772d.exe
    "C:\Users\Admin\AppData\Local\Temp\553532c3bc00e3b85bcbac054bc4f05cb4fffba6f44a17c663dd37732ce1772d.exe"
    1⤵
    • 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:1864
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2572
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1984
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3316
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:6060
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:8240
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3248
        • 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:1940
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:7140
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3040
          • C:\Windows\system32\OpenWith.exe
            C:\Windows\system32\OpenWith.exe -Embedding
            1⤵
            • Modifies registry class
            • Suspicious use of SetWindowsHookEx
            PID:4748
          • C:\Windows\system32\OpenWith.exe
            C:\Windows\system32\OpenWith.exe -Embedding
            1⤵
            • Modifies registry class
            • Suspicious use of SetWindowsHookEx
            PID:3972
          • C:\Windows\system32\werfault.exe
            werfault.exe /h /shared Global\99068f9cb22945abaaea2188ab53db4f /t 5996 /p 1940
            1⤵
              PID:1608
            • C:\Windows\system32\NOTEPAD.EXE
              "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\FILES ENCRYPTED.txt
              1⤵
                PID:312
              • C:\Windows\system32\NOTEPAD.EXE
                "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Public\Desktop\FILES ENCRYPTED.txt
                1⤵
                  PID:1048
                • C:\Windows\system32\werfault.exe
                  werfault.exe /h /shared Global\e9351b1883504f85a89c83590ff77d09 /t 8484 /p 7140
                  1⤵
                    PID:7060
                  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe
                    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca
                    1⤵
                    • Modifies registry class
                    • Suspicious use of SetWindowsHookEx
                    PID:7044
                  • C:\Windows\system32\BackgroundTransferHost.exe
                    "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.13
                    1⤵
                    • Modifies registry class
                    PID:808
                  • C:\Windows\System32\rundll32.exe
                    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                    1⤵
                      PID:2388

                    Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

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                          Downloads

                          appvcleaner.exe.id-7EBCEA55.[[email protected]].bmd
                          • Path C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe.id-7EBCEA55.[[email protected]].bmd
                          • Size 2.9MB
                          • SHA256 da1d4e5cf12a102f96f2467c0e75403287fdc51b883c507dbb9453f3a2ade173
                          • MD5 SHA1 SHA512 SSDEEP
                          Submit Download

                          Info.hta
                          • Path C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
                          • Size 7KB
                          • SHA256 c423e96b72ab35cfafff6cd95e24470d65976b1fc56b15c643dc6d35a6e87364
                          • MD5 SHA1 SHA512 SSDEEP
                          Submit Download

                          7548c0ce-37a9-4ebf-8524-39d810c2c975.down_data
                          • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\BackgroundTransferApi\7548c0ce-37a9-4ebf-8524-39d810c2c975.down_data
                          • Size 555KB
                          • SHA256 855abd360d8a8d6974eba92b70cbd09ce519bc8773439993f9ab37cb6847309e
                          • MD5 SHA1 SHA512 SSDEEP
                          Submit Download

                          SettingsCache.txt
                          • Path C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SettingsCache.txt
                          • Size 846KB
                          • SHA256 9111e9a5093f97e15510bf3d3dc36fd4a736981215f79540454ce86893993fdc
                          • MD5 SHA1 SHA512 SSDEEP
                          Submit Download

                          FILES ENCRYPTED.txt
                          • Path C:\Users\Admin\Desktop\FILES ENCRYPTED.txt
                          • Size 234B
                          • SHA256 9d8d5797eb18ddee240b754ddb4fc5cca1cfac0068c963a6ccbed931e507e42c
                          • MD5 SHA1 SHA512
                          Submit Download