Overview

overview

10

Static

static

903bc7e411...1e.exe

windows7-x64

10

903bc7e411...1e.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-07-2022 07:11

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General

  • Target

    903bc7e41147dd62902f05aa2abbb2f63018832d37b45e8a194c534c8947271e.exe

  • Size

    270KB

  • MD5

    b0f8e32c7f511b967776b53d9bbc05b9

  • SHA1

    d31521a4c20233ccc35704e9c40a7ed368f31126

  • SHA256

    903bc7e41147dd62902f05aa2abbb2f63018832d37b45e8a194c534c8947271e

  • SHA512

    fb2e4c61069f7b5321cf8e872b2cce770faede7351af58d18c416db51dc5a3325dfd22737a3cd27ff54fd247118851c1f9bfcf554e96fce0606dd3781af4ffe2

Score
10/10
dharmapersistenceransomwarespywarestealer

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 D3E82149 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.

    ransomwaredharma
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • 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.

    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). Likely ransomware behaviour.

  • Interacts with shadow copies 2 TTPs 2 IoCs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\903bc7e41147dd62902f05aa2abbb2f63018832d37b45e8a194c534c8947271e.exe
    "C:\Users\Admin\AppData\Local\Temp\903bc7e41147dd62902f05aa2abbb2f63018832d37b45e8a194c534c8947271e.exe"
    1⤵
    • 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:3240
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3676
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:3932
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1020
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4056
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:3308
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1696
        • 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:3544
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:2728
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:520

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

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

            13KB

            MD5

            a5aaed08e647df3c7e93d4d7863daff9

            SHA1

            86112ab5ee00daa79785740efdb1a7a1f9a9a6b0

            SHA256

            81ac0be111d0a9b0ee4ac8184dbd10d92c1b6e5e437948312a9cfaaa73af21f6

            SHA512

            9b3fe1fa4a2d48730d25c23f3afd99a7e7eb03e7788ac3be17b3b70220929f5389ce966c815a45219b5bc51e783bfd5746462ec053f34f51f971f86e5b55b767

            Download Submit

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

            13KB

            MD5

            a5aaed08e647df3c7e93d4d7863daff9

            SHA1

            86112ab5ee00daa79785740efdb1a7a1f9a9a6b0

            SHA256

            81ac0be111d0a9b0ee4ac8184dbd10d92c1b6e5e437948312a9cfaaa73af21f6

            SHA512

            9b3fe1fa4a2d48730d25c23f3afd99a7e7eb03e7788ac3be17b3b70220929f5389ce966c815a45219b5bc51e783bfd5746462ec053f34f51f971f86e5b55b767

            Download Submit

          • memory/1020-136-0x0000000000000000-mapping.dmp

            Download

          • memory/1696-141-0x0000000000000000-mapping.dmp

            Download

          • memory/2728-143-0x0000000000000000-mapping.dmp

            Download

          • memory/3240-137-0x0000000003480000-0x0000000003580000-memory.dmp

            Filesize

            1024KB

            Download

          • memory/3240-131-0x0000000003480000-0x0000000003580000-memory.dmp

            Filesize

            1024KB

            Download

          • memory/3240-138-0x00000000001C0000-0x00000000001D9000-memory.dmp

            Filesize

            100KB

            Download

          • memory/3240-134-0x0000000000400000-0x000000000337B000-memory.dmp

            Filesize

            47.5MB

            Download

          • memory/3240-132-0x00000000001C0000-0x00000000001D9000-memory.dmp

            Filesize

            100KB

            Download

          • memory/3308-140-0x0000000000000000-mapping.dmp

            Download

          • memory/3544-142-0x0000000000000000-mapping.dmp

            Download

          • memory/3676-133-0x0000000000000000-mapping.dmp

            Download

          • memory/3932-135-0x0000000000000000-mapping.dmp

            Download

          • memory/4056-139-0x0000000000000000-mapping.dmp

            Download