Overview

overview

10

Static

static

4b6de6cf9a...8d.exe

windows7_x64

10

4b6de6cf9a...8d.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    11-09-2020 08:09

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General

  • Target

    4b6de6cf9a91af3abf522643cb138747725ec1ae47d1defd66488e246a1fec8d.exe

  • Size

    92KB

  • MD5

    7e6416edcfa9e24fd98364d06f26186e

  • SHA1

    932db076cf4c1756a430447431ddafa287669c89

  • SHA256

    4b6de6cf9a91af3abf522643cb138747725ec1ae47d1defd66488e246a1fec8d

  • SHA512

    9f800c63767c381b04dae875384eb1b27b3b5b55de737d15fd61df3b33afa97500c6e26dfbdcd9ad90096e925f6f4ede6f5d831950d197ef0049357b01fc4563

Score
10/10
ransomwarespywarepersistencedharma

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\FILES ENCRYPTED.txt

Ransom Note
all your data has been locked us You want to return? Write email smith11@keemail.me or telegram:@Smith39k
Emails

smith11@keemail.me

Extracted

Path

C:\ProgramData\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 smith11@keemail.me Write this ID in the title of your message 8BC377C6 In case of no answer in 24 hours write us to theese e-mails: telegram:@Smith39k 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

smith11@keemail.me

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.

    spyware
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Drops desktop.ini file(s) 77 IoCs
  • Drops file in System32 directory 2 IoCs
  • Modifies service 2 TTPs 5 IoCs
    persistence
  • Drops file in Program Files directory 27843 IoCs
  • 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 250 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b6de6cf9a91af3abf522643cb138747725ec1ae47d1defd66488e246a1fec8d.exe
    "C:\Users\Admin\AppData\Local\Temp\4b6de6cf9a91af3abf522643cb138747725ec1ae47d1defd66488e246a1fec8d.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:896
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1512
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1764
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1588
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:972
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1140
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:884
        • 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:1172
        • 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:364
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Modifies service
        • Suspicious use of AdjustPrivilegeToken
        PID:2028

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Initial Access

      Execution

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Modify Existing Service

      1
      T1031

      Privilege Escalation

      Defense Evasion

      File Deletion

      2
      T1107

      Modify Registry

      3
      T1112

      Credential Access

      Credentials in Files

      1
      T1081

      Discovery

      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
        Download Submit
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
        Download Submit
      • memory/364-24-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp
        Filesize

        64KB

        Download
      • memory/364-7-0x0000000000000000-mapping.dmp
        Download
      • memory/884-5-0x0000000000000000-mapping.dmp
        Download
      • memory/972-3-0x0000000000000000-mapping.dmp
        Download
      • memory/1140-4-0x0000000000000000-mapping.dmp
        Download
      • memory/1172-6-0x0000000000000000-mapping.dmp
        Download
      • memory/1172-27-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp
        Filesize

        64KB

        Download
      • memory/1512-0-0x0000000000000000-mapping.dmp
        Download
      • memory/1588-2-0x0000000000000000-mapping.dmp
        Download
      • memory/1592-10-0x000007FEF7B70000-0x000007FEF7DEA000-memory.dmp
        Filesize

        2.5MB

        Download
      • memory/1764-1-0x0000000000000000-mapping.dmp
        Download