Analysis

  • max time kernel
    151s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    29-05-2022 21:57

General

  • Target

    0d0b6e8bb7ecfdbb7a9ca1892c8fce962619395a50df68456181034c2a727982.exe

  • Size

    245KB

  • MD5

    b9c1200ebc3d34728e52ab8a878d68c8

  • SHA1

    b7b991cc488f390be07389d8322966d3be62e244

  • SHA256

    0d0b6e8bb7ecfdbb7a9ca1892c8fce962619395a50df68456181034c2a727982

  • SHA512

    f9896e9c6106a3bf462779b9faedf008881581f86f95f3a7651b321bd6a94684655e1c9263028a3b3b7d2e2ed9e91feda43196eab56c8dc99a641ef4f242b368

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 9F6307F1 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.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Drops desktop.ini file(s) 64 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 1 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 FindShellTrayWindow 8 IoCs
  • Suspicious use of SendNotifyMessage 8 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0d0b6e8bb7ecfdbb7a9ca1892c8fce962619395a50df68456181034c2a727982.exe
    "C:\Users\Admin\AppData\Local\Temp\0d0b6e8bb7ecfdbb7a9ca1892c8fce962619395a50df68456181034c2a727982.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3184
    • C:\Users\Admin\AppData\Local\Temp\0d0b6e8bb7ecfdbb7a9ca1892c8fce962619395a50df68456181034c2a727982.exe
      C:\Users\Admin\AppData\Local\Temp\0d0b6e8bb7ecfdbb7a9ca1892c8fce962619395a50df68456181034c2a727982.exe
      2⤵
      • 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:4476
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4332
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          4⤵
            PID:1460
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            4⤵
            • Interacts with shadow copies
            PID:2504
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2196
          • C:\Windows\system32\mode.com
            mode con cp select=1251
            4⤵
              PID:1132
            • C:\Windows\system32\vssadmin.exe
              vssadmin delete shadows /all /quiet
              4⤵
              • Interacts with shadow copies
              PID:1604
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            3⤵
              PID:4272
            • C:\Windows\System32\mshta.exe
              "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
              3⤵
                PID:3496
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3452

          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

            f335c06a21872e82b850de028499e158

            SHA1

            5eec583e61e4fef44292cb476333a1656cfd35f4

            SHA256

            1800fbe0d33512fb5ab5c8d5daae10d9675358e435bac953aa4cdab0828065d5

            SHA512

            4922477fed0a3ed70e94cd2599e45093df6a8365a4a25b713989459ff2e792121ccd5f463092c5627f7d261617cc9c91e76b0789298039c6889fd98c4d5938d3

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

            Filesize

            13KB

            MD5

            f335c06a21872e82b850de028499e158

            SHA1

            5eec583e61e4fef44292cb476333a1656cfd35f4

            SHA256

            1800fbe0d33512fb5ab5c8d5daae10d9675358e435bac953aa4cdab0828065d5

            SHA512

            4922477fed0a3ed70e94cd2599e45093df6a8365a4a25b713989459ff2e792121ccd5f463092c5627f7d261617cc9c91e76b0789298039c6889fd98c4d5938d3

          • memory/1132-144-0x0000000000000000-mapping.dmp

          • memory/1460-141-0x0000000000000000-mapping.dmp

          • memory/1604-146-0x0000000000000000-mapping.dmp

          • memory/2196-143-0x0000000000000000-mapping.dmp

          • memory/2504-142-0x0000000000000000-mapping.dmp

          • memory/3184-130-0x0000000000400000-0x000000000045F000-memory.dmp

            Filesize

            380KB

          • memory/3184-140-0x0000000000A40000-0x0000000000A74000-memory.dmp

            Filesize

            208KB

          • memory/3184-138-0x0000000000400000-0x000000000045F000-memory.dmp

            Filesize

            380KB

          • memory/3496-147-0x0000000000000000-mapping.dmp

          • memory/4272-145-0x0000000000000000-mapping.dmp

          • memory/4332-139-0x0000000000000000-mapping.dmp

          • memory/4476-137-0x0000000000400000-0x0000000000419000-memory.dmp

            Filesize

            100KB

          • memory/4476-132-0x0000000000400000-0x0000000000419000-memory.dmp

            Filesize

            100KB

          • memory/4476-131-0x0000000000000000-mapping.dmp