Overview

overview

10

Static

static

1c_bitrix.exe

windows7_x64

10

1c_bitrix.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    10-06-2021 11:02

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General

  • Target

    1c_bitrix.exe

  • Size

    92KB

  • MD5

    80b21955369b73d9c3b73214905c8ba7

  • SHA1

    c3b6c20dd9f7d9b3246683952db3b1800e19664e

  • SHA256

    1af26c9d78b02d5b43e43029645046aa2544cf43f9cf068cb6188b5261db25bb

  • SHA512

    f3a5c5c496e552c0f8853b45ce06f451187cc2d73a1eea242bbd9d641245f79a6ddc08eae7b35ef14ad94a2b575d5facb05a4e8867391cd2df3728c4b41c69c7

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 xcsset@criptext.com Write this ID in the title of your message 41EB61BF In case of no answer in 24 hours write us to theese e-mails: xcsset@aol.com 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.
Emails

xcsset@criptext.com

xcsset@aol.com

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
  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

    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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c_bitrix.exe
    "C:\Users\Admin\AppData\Local\Temp\1c_bitrix.exe"
    1⤵
    • Modifies extensions of user files
    • 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:1736
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:912
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:3528
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1240
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:264
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:908
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1568
        • 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:2708
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:3024
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2808
          • C:\Windows\system32\NOTEPAD.EXE
            "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Public\Desktop\FILES ENCRYPTED.txt
            1⤵
              PID:280

            Network

            MITRE ATT&CK Matrix ATT&CK v6

            Initial Access

            Execution

            Persistence

            Registry Run Keys / Startup Folder

            1
            T1060

            Privilege Escalation

            Defense Evasion

            File Deletion

            2
            T1107

            Modify Registry

            1
            T1112

            Credential Access

            Credentials in Files

            1
            T1081

            Discovery

            System Information Discovery

            1
            T1082

            Lateral Movement

            Collection

            Data from Local System

            1
            T1005

            Exfiltration

            Command and Control

            Impact

            Inhibit System Recovery

            2
            T1490

            Replay Monitor

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            Downloads

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

              874468a0021a7b8338fb896a23e73dac

              SHA1

              dfef12ad8528b6182e233e8cff17d4814708f524

              SHA256

              f8ce96a14ca8626a49199ce46e1596c27e17606a772cb0ab6de73070ee686548

              SHA512

              af370348ccd7a93e843920334acc214b4a681afae9197f477014a527300ce57dc5f85d6cf1580eb4cf82ec869ee64722eb6dc6fcbddfda7f81a2a0acd012873a

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

              874468a0021a7b8338fb896a23e73dac

              SHA1

              dfef12ad8528b6182e233e8cff17d4814708f524

              SHA256

              f8ce96a14ca8626a49199ce46e1596c27e17606a772cb0ab6de73070ee686548

              SHA512

              af370348ccd7a93e843920334acc214b4a681afae9197f477014a527300ce57dc5f85d6cf1580eb4cf82ec869ee64722eb6dc6fcbddfda7f81a2a0acd012873a

              Download Submit
            • C:\Users\Public\Desktop\FILES ENCRYPTED.txt
              MD5

              2a59427d081d35ce74134ca45a8dda5c

              SHA1

              1a651e68628e147639d7defce830b3c04f9bf3ba

              SHA256

              468a30ecff85635df393a214872dd9a2a8c53a66db9d2f07926a66e82a20e99e

              SHA512

              dc93fc3bcdfc1e7e135aa32a852359ccf750b3992a0547ba7075d1d0fab686a34545924aea6bb279bab49e26a64de7c0b11709f0a7f4bd262bbb18df694f9458

              Download Submit
            • memory/264-117-0x0000000000000000-mapping.dmp
              Download
            • memory/908-118-0x0000000000000000-mapping.dmp
              Download
            • memory/912-114-0x0000000000000000-mapping.dmp
              Download
            • memory/1240-116-0x0000000000000000-mapping.dmp
              Download
            • memory/1568-119-0x0000000000000000-mapping.dmp
              Download
            • memory/2708-120-0x0000000000000000-mapping.dmp
              Download
            • memory/3024-121-0x0000000000000000-mapping.dmp
              Download
            • memory/3528-115-0x0000000000000000-mapping.dmp
              Download