Overview

overview

10

Static

static

3

CoronaVirus.exe

windows11-21h2-x64

10

CoronaVirus.exe

windows7-x64

10

Analysis

  • max time kernel
    102s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    08-12-2024 01:52

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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 9F17A3C2 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 (311) 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
  • 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 1 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
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 28 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:2296
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2252
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2716
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2868
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1712
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2268
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2960
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          PID:3008
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          PID:2208
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2828

      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

      2
      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:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ProPlusWW.msi.id-9F17A3C2.[[email protected]].ncov
        Filesize

        24.4MB

        MD5

        91ac1b108141e4d84ee1e29526c9f5a3

        SHA1

        8c8b5e3cbe5f6f27816c8e11c05aa35b1087f368

        SHA256

        948e317ce7053bc3f765944780c5b984f7b678eeae79ceaaad15acd269c1d1e6

        SHA512

        2dea68d3b6b5f358a341af22f55397bfec9758ab068d67234ce5eaceac5d1aae86655ae918000bc5fbad817d1ca1811a7a9a0b997f9876c41b22354f4d461533

        Download Submit

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

        13KB

        MD5

        eb5e9266fdb58910aad4b94603771767

        SHA1

        b3ac6be86fe8fa4dfc790e83d3edd0400e5a27b7

        SHA256

        63d86c5111f6c53a1bc23171b7acfa59555cda1d57f30d040ba143610e7dcb5b

        SHA512

        b07ba23b3deb01ce1e2d87fbbe5674212450126f8daa79bac089775cf27c4937829b410253c6d60187bbdb7cd59e4537bad2d20739a4e57967eec240bb305480

        Download Submit

      • memory/2208-20377-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp

        Filesize

        64KB

        Download

      • memory/2296-0-0x0000000000400000-0x000000000056F000-memory.dmp

        Filesize

        1.4MB

        Download

      • memory/2296-1-0x000000000B6E0000-0x000000000B714000-memory.dmp

        Filesize

        208KB

        Download

      • memory/2296-2-0x0000000000400000-0x000000000056F000-memory.dmp

        Filesize

        1.4MB

        Download

      • memory/2296-2832-0x0000000000400000-0x000000000056F000-memory.dmp

        Filesize

        1.4MB

        Download

      • memory/2296-9970-0x000000000B6E0000-0x000000000B714000-memory.dmp

        Filesize

        208KB

        Download

      • memory/3008-20392-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp

        Filesize

        64KB

        Download