Overview

overview

10

Static

static

3

CoronaVirus.exe

windows10-2004-x64

10

CoronaVirus.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    95s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    30-04-2024 22:37

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General

  • Target

    CoronaVirus.exe

  • Size

    1.0MB

  • MD5

    055d1462f66a350d9886542d4d79bc2b

  • SHA1

    f1086d2f667d807dbb1aa362a7a809ea119f2565

  • SHA256

    dddf7894b2e6aafa1903384759d68455c3a4a8348a7e2da3bd272555eba9bec0

  • SHA512

    2c5e570226252bdb2104c90d5b75f11493af8ed1be8cb0fd14e3f324311a82138753064731b80ce8e8b120b3fe7009b21a50e9f4583d534080e28ab84b83fee1

  • SSDEEP

    24576:FRYz/ERA0eMuWfHvgPw/83JI8CorP9qY0:FE/yADMuYvgP93JIc2

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 D2BA5747 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
  • Renames multiple (554) 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 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\CoronaVirus.exe
    "C:\Users\Admin\AppData\Local\Temp\CoronaVirus.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:4080
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2932
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:11248
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:27716
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:26692
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:26432
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:26344
        • 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:26024
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:25992
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:27284
          • C:\Windows\system32\NOTEPAD.EXE
            "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Public\Desktop\FILES ENCRYPTED.txt
            1⤵
              PID:19188
            • C:\Windows\system32\werfault.exe
              werfault.exe /h /shared Global\615ad83ddd8a418e9b8766c85ee9d44d /t 25968 /p 25992
              1⤵
                PID:7944

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems64.dll.id-D2BA5747.[[email protected]].ncov
                Filesize

                3.2MB

                MD5

                df4e0e96a61094e6118729d2494bc389

                SHA1

                5cffb85b6d5260410fc7b16e00c397d1d6c1fc95

                SHA256

                e3b5dd9e8ad0eca6490d608fae898ce71e429c2ca6243722b5d5488cc8804cd7

                SHA512

                0c6f4b3a2fd3a05d1e95d7f4f50b00449c59323b6ff506e67481dfad9abb61597d4669df0dec75c400cdb7f84346ef2f9be2ca0ff9a5907a4da30bdafdd84486

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

                13KB

                MD5

                c50ca2ccd559118e9afdd22861970532

                SHA1

                b1c6b1e3902665780b9d6f3185639559930bf96e

                SHA256

                aa74e96e6531405a1c687a61a16f6f60737b330b7d0ae2977b4034e1fb414465

                SHA512

                7653d394f4c5a737a7b4f479e1208ec4e9ce84155102befe83fd39f77eaf3c8a9db6671dbb5cfeddc064d8148cecc6359dc3be3e13c98eb7ce729f79b93269f8

                Download Submit

              • C:\Users\Public\Desktop\FILES ENCRYPTED.txt
                Filesize

                170B

                MD5

                21539971cae3b6278ce678b16b3f2643

                SHA1

                f4357280ca6838b0b62e610c6ffc24d1ab615e37

                SHA256

                b386715edcdb5fbb762f2308d588c5a67bfe65745105b87228596885e4715045

                SHA512

                43f07a7df1bf14f76f60424219f00c051f4097f222f3b453cd208449f30e4915745300ad89f45a738bd828c7691fe97c0a16fa58115057d4ccf0e1784b46a7db

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              • memory/4080-0-0x0000000000400000-0x000000000056F000-memory.dmp

                Filesize

                1.4MB

                Download

              • memory/4080-1-0x000000000A6A0000-0x000000000A6D4000-memory.dmp

                Filesize

                208KB

                Download

              • memory/4080-3-0x0000000000400000-0x000000000056F000-memory.dmp

                Filesize

                1.4MB

                Download

              • memory/4080-13004-0x0000000000400000-0x000000000056F000-memory.dmp

                Filesize

                1.4MB

                Download

              • memory/4080-24771-0x000000000A6A0000-0x000000000A6D4000-memory.dmp

                Filesize

                208KB

                Download