Overview

overview

10

Static

static

3

CoronaVirus.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    77s
  • max time network
    23s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250313-en
  • resource tags

    arch:x64arch:x86image:win11-20250313-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    03/04/2025, 18:17

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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
dharmacredential_accessdefense_evasiondiscoveryexecutionimpactpersistenceransomwarespywarestealer

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 37B4820E 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
  • Dharma family
    dharma
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (770) files with added filename extension

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

    ransomware
  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

    credential_accessstealer
  • Drops startup file 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Interacts with shadow copies 3 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 23 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
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3340
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2080
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:14220
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:31776
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:30944
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:31004
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:31032
        • 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:31068
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:31136
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Windows\System32\CoronaVirus.exe
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:2980
            • C:\Windows\System32\CoronaVirus.exe
              C:\Windows\System32\CoronaVirus.exe
              2⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:8792
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:15704
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c mshta.exe "C:\Windows\System32\Info.hta"
            1⤵
            • Suspicious use of WriteProcessMemory
            PID:31164
            • C:\Windows\system32\mshta.exe
              mshta.exe "C:\Windows\System32\Info.hta"
              2⤵
                PID:31148
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c mshta.exe "C:\Users\Admin\AppData\Roaming\Info.hta"
              1⤵
              • Suspicious use of WriteProcessMemory
              PID:31168
              • C:\Windows\system32\mshta.exe
                mshta.exe "C:\Users\Admin\AppData\Roaming\Info.hta"
                2⤵
                  PID:31300

              Network

              MITRE ATT&CK Enterprise v15

              Reconnaissance

              Resource Development

              Initial Access

              Execution

              Windows Management Instrumentation

              1
              T1047

              Persistence

              Boot or Logon Autostart Execution

              1
              T1547

              Registry Run Keys / Startup Folder

              1
              T1547.001

              Privilege Escalation

              Boot or Logon Autostart Execution

              1
              T1547

              Registry Run Keys / Startup Folder

              1
              T1547.001

              Defense Evasion

              Direct Volume Access

              1
              T1006

              Indicator Removal

              2
              T1070

              File Deletion

              2
              T1070.004

              Modify Registry

              1
              T1112

              Credential Access

              Credentials from Password Stores

              2
              T1555

              Credentials from Web Browsers

              1
              T1555.003

              Windows Credential Manager

              1
              T1555.004

              Unsecured Credentials

              1
              T1552

              Credentials In Files

              1
              T1552.001

              Discovery

              Browser Information Discovery

              1
              T1217

              System Information Discovery

              1
              T1082

              System Location Discovery

              1
              T1614

              System Language Discovery

              1
              T1614.001

              Lateral Movement

              Collection

              Data from Local System

              1
              T1005

              Command and Control

              Exfiltration

              Impact

              Inhibit System Recovery

              2
              T1490

              Replay Monitor

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              Downloads

              • C:\Program Files\Common Files\microsoft shared\ClickToRun\AppvIsvSubsystems32.dll.id-37B4820E.[[email protected]].ncov
                Filesize

                2.7MB

                MD5

                b27c3c4b05d78f1e5b98574c06472d6b

                SHA1

                174cfce5644ddb809b5a9829c9510330ac8fc111

                SHA256

                3398455a32237a04c04173d997b61498fa2ebd807018f6b80de086260cb8ef32

                SHA512

                9d9e2aac0adb0c860eeaa8ba8478eed38ed8cc6dc86f51594c9afba5c701d27674e1655227f19f865b2ae027a3547140fa3fda935b837b0ba34d545b8d253288

                Download Submit

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

                13KB

                MD5

                9a5b85d5b497c29897653648fc78d76d

                SHA1

                cf586de18d9c2138a4adf9c954e7272805d50ed2

                SHA256

                4457a14558aa5d464db2b6fa3491c27ee54d32667d20134bf661696f27cd0967

                SHA512

                b630a742ca87fd69f3ed3fdba53704bc9248cdf4052f3b35207fe2c8ab80b4bddd8ec9a81b40cf7b298ab380e5428e176320c84ef25911fc81a46b1e0701b6b8

                Download Submit

              • C:\Windows\System32\CoronaVirus.exe
                Filesize

                1.0MB

                MD5

                055d1462f66a350d9886542d4d79bc2b

                SHA1

                f1086d2f667d807dbb1aa362a7a809ea119f2565

                SHA256

                dddf7894b2e6aafa1903384759d68455c3a4a8348a7e2da3bd272555eba9bec0

                SHA512

                2c5e570226252bdb2104c90d5b75f11493af8ed1be8cb0fd14e3f324311a82138753064731b80ce8e8b120b3fe7009b21a50e9f4583d534080e28ab84b83fee1

                Download Submit

              • memory/3340-0-0x0000000000400000-0x000000000056F000-memory.dmp

                Filesize

                1.4MB

                Download

              • memory/3340-1-0x000000000A6A0000-0x000000000A6D4000-memory.dmp

                Filesize

                208KB

                Download

              • memory/3340-2-0x0000000000400000-0x000000000056F000-memory.dmp

                Filesize

                1.4MB

                Download

              • memory/3340-5073-0x0000000000400000-0x000000000056F000-memory.dmp

                Filesize

                1.4MB

                Download

              • memory/8792-12477-0x0000000000400000-0x000000000056F000-memory.dmp

                Filesize

                1.4MB

                Download

              • memory/8792-21161-0x0000000000400000-0x000000000056F000-memory.dmp

                Filesize

                1.4MB

                Download

              • memory/8792-21883-0x000000000A570000-0x000000000A5A4000-memory.dmp

                Filesize

                208KB

                Download

              • memory/8792-21879-0x0000000000400000-0x000000000056F000-memory.dmp

                Filesize

                1.4MB

                Download