Overview

overview

10

Static

static

3

Ransomware.7ev3n.exe

windows7-x64

Ransomware.7ev3n.exe

windows10-2004-x64

Ransomware...it.exe

windows7-x64

10

Ransomware...it.exe

windows10-2004-x64

10

Ransomware...us.exe

windows7-x64

10

Ransomware...us.exe

windows10-2004-x64

10

Ransomware...er.exe

windows7-x64

10

Ransomware...er.exe

windows10-2004-x64

10

MalwareCol...om.zip

windows7-x64

1

MalwareCol...om.zip

windows10-2004-x64

1

MalwareCol...v1.zip

windows7-x64

1

MalwareCol...v1.zip

windows10-2004-x64

1

MalwareCol...00.zip

windows7-x64

1

MalwareCol...00.zip

windows10-2004-x64

1

MalwareCol....0.zip

windows7-x64

1

MalwareCol....0.zip

windows10-2004-x64

1

MalwareCol....A.zip

windows7-x64

1

MalwareCol....A.zip

windows10-2004-x64

1

Analysis

  • max time kernel
    216s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-02-2024 11:28

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General

  • Target

    Ransomware.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 E56F723E 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 (312) 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
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 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\Ransomware.CoronaVirus.exe
    "C:\Users\Admin\AppData\Local\Temp\Ransomware.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:2804
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2500
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1272
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:340
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:6052
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:3724
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:4388
        • 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
          PID:6192
        • 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
          PID:4024
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3012
      • C:\Windows\explorer.exe
        "C:\Windows\explorer.exe"
        1⤵
          PID:3092

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-E56F723E.[[email protected]].ncov
          Filesize

          704KB

          MD5

          4b80db1d1a9163af011898b40f1215db

          SHA1

          ce774b446942867b1fd53b2c7e3b2a689aa7e359

          SHA256

          5627d6ef418344d3def98b215568bfcca05a20eb977109f76bc13b9c03ecd931

          SHA512

          5a8a9899881248e364ca3e9649aac27974b72b8be96890ab1456939387debca43d6104b05c2cfda4bb1a69c9fa5164d1cfca01bf03775f24fe11f443f298b647

          Download Submit

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

          13KB

          MD5

          e2a24305d57ac66249d3369f4d1ca079

          SHA1

          f169ea5a961740bfad1401479f230c374c265df9

          SHA256

          6c119b112b09bf838d55cef23c29c2c00e998630f96ec987dd55f00ce9b62c54

          SHA512

          a28119b70213168ef51486745513f02408975ecf6963112cfd67d5a1f57adf0b5afed58433c018895ff668fde8157417720cc73d81c8744ddf6245797f74991b

          Download Submit

        • memory/2804-0-0x0000000000400000-0x000000000056F000-memory.dmp

          Filesize

          1.4MB

          Download

        • memory/2804-1-0x000000000A8C0000-0x000000000A8F4000-memory.dmp

          Filesize

          208KB

          Download

        • memory/2804-2-0x0000000000400000-0x000000000056F000-memory.dmp

          Filesize

          1.4MB

          Download

        • memory/2804-540-0x0000000000400000-0x000000000056F000-memory.dmp

          Filesize

          1.4MB

          Download

        • memory/2804-8607-0x000000000A8C0000-0x000000000A8F4000-memory.dmp

          Filesize

          208KB

          Download

        • memory/4024-20227-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp

          Filesize

          64KB

          Download