Overview

overview

10

Static

static

2023-01-21...is.exe

windows7-x64

10

2023-01-21...is.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-01-2023 09:17

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General

  • Target

    2023-01-21_be47139183c40fceb264c6946627b93f_crysis.exe

  • Size

    92KB

  • MD5

    be47139183c40fceb264c6946627b93f

  • SHA1

    06f645d6afc2f909dbdf61c0982dcd74126bc5f5

  • SHA256

    b6b2c1f4bbe4259e0279a0c3db98a69db12ab6ae0b549085c714f1497f3c8300

  • SHA512

    eebd19694a2ac660c89ad2b323c7b871deaa3099065c8298d5135b3ce1bb56d751cb049b55099ffe78c54eb2a00561970dfdd184dde950534433b26c47696a73

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AeAI3cCVuogqtNp6XNUS7fvUHkd:Qw+asqN5aW/hLdIseKqtneN7X0M

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! 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 F3EA34EC 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 5 files for free decryption. The total size of files must be less than 10Mb (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\2023-01-21_be47139183c40fceb264c6946627b93f_crysis.exe
    "C:\Users\Admin\AppData\Local\Temp\2023-01-21_be47139183c40fceb264c6946627b93f_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:1536
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1344
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:552
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:684
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:884
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1400
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1304
        • 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:300
        • 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:316
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1544

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

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

        13KB

        MD5

        571a6a5c03f78ec2efffced682a2c5bd

        SHA1

        8df8115ba0ae378aace52a4afaba813e551be795

        SHA256

        ba59be89e2207d9d7bf2479038aa2770e1a5a0ad7cb9dbdff9368e9cdccfa068

        SHA512

        4b26e21bf3cd3ad0cb866138b0c301fb54f3c83b4949cd4228c3c205fd15c5f65ac271fafa2c75a53afca4217ae9d7d4e1eab5a914c7e8d4365f359826f98bf0

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

        13KB

        MD5

        571a6a5c03f78ec2efffced682a2c5bd

        SHA1

        8df8115ba0ae378aace52a4afaba813e551be795

        SHA256

        ba59be89e2207d9d7bf2479038aa2770e1a5a0ad7cb9dbdff9368e9cdccfa068

        SHA512

        4b26e21bf3cd3ad0cb866138b0c301fb54f3c83b4949cd4228c3c205fd15c5f65ac271fafa2c75a53afca4217ae9d7d4e1eab5a914c7e8d4365f359826f98bf0

        Download Submit

      • memory/300-61-0x0000000000000000-mapping.dmp

        Download

      • memory/316-62-0x0000000000000000-mapping.dmp

        Download

      • memory/552-56-0x0000000000000000-mapping.dmp

        Download

      • memory/684-57-0x0000000000000000-mapping.dmp

        Download

      • memory/884-58-0x0000000000000000-mapping.dmp

        Download

      • memory/1304-60-0x0000000000000000-mapping.dmp

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      • memory/1344-55-0x0000000000000000-mapping.dmp

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      • memory/1400-59-0x0000000000000000-mapping.dmp

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      • memory/1536-54-0x0000000076581000-0x0000000076583000-memory.dmp

        Filesize

        8KB

        Download