Overview

overview

10

Static

static

3

2023-05-08...is.exe

windows7-x64

10

2023-05-08...is.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    09-05-2023 03:01

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General

  • Target

    2023-05-08_d3a5c66e319bd71259570ed86f0a1bce_crysis.exe

  • Size

    92KB

  • MD5

    d3a5c66e319bd71259570ed86f0a1bce

  • SHA1

    3c5e36913aa97748981f3471edebb05a8ec9adcb

  • SHA256

    c221cb99f25328e6bf50d435b4ab3a2ff8b09f05f7cd90e5ce2006855b3aa619

  • SHA512

    def8de735c2153b8a607d3e871d828fd68ac860ec4260e022d3e47c5f816c32eca177a1ee2d4e50d1c4d3fcb55b5a9c6fb46e81c57d704cc97bb489e20d33425

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AZfl0tWOWkNQllq5ywFDOsValHWPMtS+:Qw+asqN5aW/hL9k5NQl80wJalHWP

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

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

Ransom Note
All your files have been encrypted! Don't worry, you can return all your files! If you want to restore them, write to the mail: mr.hacker@nerdmail.co YOUR ID mr.hacker@onionmail.org Free decryption as guarantee Before paying you can send us up to 3 files for free decryption. The total size of files must be less than 3Mb (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

mr.hacker@nerdmail.co

mr.hacker@onionmail.org

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).

  • 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\2023-05-08_d3a5c66e319bd71259570ed86f0a1bce_crysis.exe
    "C:\Users\Admin\AppData\Local\Temp\2023-05-08_d3a5c66e319bd71259570ed86f0a1bce_crysis.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:908
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1716
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1084
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:1040
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3912
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:3832
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1144
        • 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:1616
        • 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:2324
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1252

      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

      2
      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:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-0AE29B63.[mr.hacker@nerdmail.co].crYpt
        Filesize

        23.5MB

        MD5

        3d9974bbca3cbb9f1b06fb842a9327c5

        SHA1

        9ca00f3e696f40a1401b7679692d24065cbf371d

        SHA256

        2692369a0292a42de4b645f21270f74620312b07dde4e2bf5264d3ac7e280407

        SHA512

        fab2ed5de6811c1078c629f0e0dd2b48f3ae4717b1a669ff1276a8d75386e7cfd49710cf5236bec0ffb9590eeea6a233771945a64066aa45b77bc6199fe91e61

        Download Submit
      • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
        Filesize

        4KB

        MD5

        b1da645b004bd6605c0a54073f5d7d5a

        SHA1

        249c6b60dce3f7da6a48662641ba2e663f42581d

        SHA256

        459cf96e4d907f8500060a09fcfa64cd46af9cb1c3fdb7a2c6f44698560f4fad

        SHA512

        93a0fd58abdff6eaf0c34bebee0bbab005768d17f823d97fe86c2e53db185879017e047d5481556f6aba322f004c0f1a616c58b0868a6bcbf14fa1e0d42a7653

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

        4KB

        MD5

        b1da645b004bd6605c0a54073f5d7d5a

        SHA1

        249c6b60dce3f7da6a48662641ba2e663f42581d

        SHA256

        459cf96e4d907f8500060a09fcfa64cd46af9cb1c3fdb7a2c6f44698560f4fad

        SHA512

        93a0fd58abdff6eaf0c34bebee0bbab005768d17f823d97fe86c2e53db185879017e047d5481556f6aba322f004c0f1a616c58b0868a6bcbf14fa1e0d42a7653

        Download Submit
      • memory/2324-20136-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp
        Filesize

        64KB

        Download