Overview

overview

10

Static

static

3

CoronaVirus.exe

windows10-1703-x64

10

Resubmissions

29-04-2024 07:46

240429-jlyaxsdf97 10

28-04-2024 13:27

240428-qp2wvagg39 10

28-04-2024 13:08

240428-qdnj3sge28 10

28-04-2024 12:57

240428-p7ch8sgc77 10

28-04-2024 12:50

240428-p25ylagf2v 10

28-04-2024 12:29

240428-pnvwgagb8t 10

Analysis

  • max time kernel
    64s
  • max time network
    19s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    28-04-2024 12:29

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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 8B419C1F 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 (440) 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:4108
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4896
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:8860
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:21476
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:21640
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:21252
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:21016
        • 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:21356
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:21340
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:21136
          • C:\Windows\system32\NOTEPAD.EXE
            "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Public\Desktop\FILES ENCRYPTED.txt
            1⤵
              PID:19740
            • C:\Windows\system32\NOTEPAD.EXE
              "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\FILES ENCRYPTED.txt
              1⤵
                PID:18848

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              • C:\Program Files\Java\jdk-1.8\javafx-src.zip.id-8B419C1F.[[email protected]].ncov
                Filesize

                5.7MB

                MD5

                18dd8ed042fb4796db13e166b92dd172

                SHA1

                d1190988a5610f847936b4a4cf01ce355dc0d565

                SHA256

                92137f987e91a4971be08847a9e72664d093df019858f6e0aa9812d3525c6a88

                SHA512

                cf413628e60018cfb8b2f0a68ce962ffc357c0f88a348fe1617e1888bbce785b8a7cb25c4f15c6e180296ac75361de593d6ce777a9c48aefda04dd12b3acb035

                Download Submit

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

                13KB

                MD5

                58126a892c9d8255643e2ee5d54c5c44

                SHA1

                7146044161874a62a368f1eb186c7f44c9f02cdd

                SHA256

                e3e178277111e7ed1a3f2f19855abd365a5f25c76d2c21cc1cefda68d4ec0c01

                SHA512

                4ca89ec510a5222eeee4a16268da49638d518ac5c91c3abc40960ce1470da5d31798e10ad9865152cb12890afb685838faff956b8e2a673ef7f611703a78082a

                Download Submit

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

                170B

                MD5

                21539971cae3b6278ce678b16b3f2643

                SHA1

                f4357280ca6838b0b62e610c6ffc24d1ab615e37

                SHA256

                b386715edcdb5fbb762f2308d588c5a67bfe65745105b87228596885e4715045

                SHA512

                43f07a7df1bf14f76f60424219f00c051f4097f222f3b453cd208449f30e4915745300ad89f45a738bd828c7691fe97c0a16fa58115057d4ccf0e1784b46a7db

                Download Submit

              • memory/4108-0-0x0000000000400000-0x000000000056F000-memory.dmp

                Filesize

                1.4MB

                Download

              • memory/4108-1-0x000000000AD30000-0x000000000AD64000-memory.dmp

                Filesize

                208KB

                Download

              • memory/4108-3-0x0000000000400000-0x000000000056F000-memory.dmp

                Filesize

                1.4MB

                Download

              • memory/4108-21163-0x0000000000400000-0x000000000056F000-memory.dmp

                Filesize

                1.4MB

                Download

              • memory/4108-22036-0x000000000AD30000-0x000000000AD64000-memory.dmp

                Filesize

                208KB

                Download