Overview

overview

10

Static

static

99983db6d9...b1.exe

windows7_x64

10

99983db6d9...b1.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    06-03-2022 05:50

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General

  • Target

    99983db6d986615dc063bb4d1a2d718ee75924e4febe9778fb0f84d8617f22b1.exe

  • Size

    92KB

  • MD5

    fa24e8b89babb10674a2aef8ca34e24f

  • SHA1

    cad18a09d19ea9482d3d379490742cb9bfa01508

  • SHA256

    99983db6d986615dc063bb4d1a2d718ee75924e4febe9778fb0f84d8617f22b1

  • SHA512

    7a2477c0204d705c7a31f9e5fa121dd33db4e5fd3722da8ef2be93fb1de8e850f54a1c28b272d06782892b85db9724d43cff50a1d6ace8980d82f4919cbd3566

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 27BCDA6D In case of no answer in 24 hours write us to theese e-mails: Telegram@khaf_baw 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
  • 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). Likely ransomware behaviour.

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\99983db6d986615dc063bb4d1a2d718ee75924e4febe9778fb0f84d8617f22b1.exe
    "C:\Users\Admin\AppData\Local\Temp\99983db6d986615dc063bb4d1a2d718ee75924e4febe9778fb0f84d8617f22b1.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:1904
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2028
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1424
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:896
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1980
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1580
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1180
        • 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:972
        • 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:1760
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:524

      Network

      MITRE ATT&CK Enterprise v6

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      Downloads

      • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
        MD5

        fcc1d4d0054debec3b310085598b3709

        SHA1

        c7180ded3ea17a99ee25a92f37811433c41434cd

        SHA256

        f61deb828be7f304b80f67dd03313f3063761b7a4cab6516519eaf17c3c7527c

        SHA512

        c3f10bb9bda252c50b9e957a7a7b6393eb403b33d439340725e1b7adacacc5cedbdecf72ebfea98716e87810cc341836cc909c30c8eeae9a772a5be383c5800a

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      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
        MD5

        fcc1d4d0054debec3b310085598b3709

        SHA1

        c7180ded3ea17a99ee25a92f37811433c41434cd

        SHA256

        f61deb828be7f304b80f67dd03313f3063761b7a4cab6516519eaf17c3c7527c

        SHA512

        c3f10bb9bda252c50b9e957a7a7b6393eb403b33d439340725e1b7adacacc5cedbdecf72ebfea98716e87810cc341836cc909c30c8eeae9a772a5be383c5800a

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      • memory/1904-54-0x0000000076731000-0x0000000076733000-memory.dmp

        Filesize

        8KB

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