Overview

overview

10

Static

static

3

CoronaVirus.exe

windows10-2004-x64

10

CoronaVirus.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    300s
  • max time network
    62s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-04-2024 08:15

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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:\ProgramData\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 FD2D2362 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 (511) files with added filename extension

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

    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).

  • 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⤵
    • 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:4152
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1176
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:3984
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:5112
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:11728
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:11912
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:11984
        • 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:11748
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:11780
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:888

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-FD2D2362.[[email protected]].ncov
            Filesize

            2.7MB

            MD5

            45c3114485743172c2a75852603b429a

            SHA1

            ea9a75e0517e58a96a3b66507a718068b8f32782

            SHA256

            915680310393a257b4c391f13c97128fbec59db71d6b5c73c1423f621fae5bee

            SHA512

            24e5c9bd91077233286eaf92fbf191c7bce1a17e570f3f43b2b20210ba31b14deb0103ed98230ddb0009d45ab81ade4e1f7727519412d68b712236c9b3a42848

            Download Submit

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

            13KB

            MD5

            3900df265eee97b52e4cac961b1e8a3b

            SHA1

            25b83ad08780a3dda4d28500ba3a3324b88383c9

            SHA256

            d76bf031b375c9e2134f014ba64ca749c42a0b6d780c9d7c0fa482e9d53ae0e2

            SHA512

            298d9fc463508aa8453d626dcd39e183a2a4bbbcc7a80ca2811c2d0d3dd3e3d321307c1b7fbe1324bfed032174167f66a84907dfc9ad912a23e8399db6740048

            Download Submit

          • memory/4152-0-0x0000000000400000-0x000000000056F000-memory.dmp

            Filesize

            1.4MB

            Download

          • memory/4152-1-0x000000000ADC0000-0x000000000ADF4000-memory.dmp

            Filesize

            208KB

            Download

          • memory/4152-3-0x0000000000400000-0x000000000056F000-memory.dmp

            Filesize

            1.4MB

            Download

          • memory/4152-24861-0x0000000000400000-0x000000000056F000-memory.dmp

            Filesize

            1.4MB

            Download

          • memory/4152-24865-0x000000000ADC0000-0x000000000ADF4000-memory.dmp

            Filesize

            208KB

            Download