Overview

overview

10

Static

static

1

2023-03-09...is.exe

windows7-x64

10

2023-03-09...is.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    10-03-2023 18:50

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General

  • Target

    2023-03-09_29320eedebbf9198c3dad888578d0707_crysis.exe

  • Size

    92KB

  • MD5

    29320eedebbf9198c3dad888578d0707

  • SHA1

    9e32b1e3b4b96b5d0795d60cf2b1b9093c1df167

  • SHA256

    0291e99acfedf4e277d56babb2783ce0a01e873a42627b4e3f4a56c2a10cc24d

  • SHA512

    67e7db4c3d907192b79fcb37d78f7d7d00299b304f5125239d50a0d127034dd6098945d1ca20bed854811d1b4cfdc540ebc0bc017773a5813a96679e90a1f18d

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AEf1a9unhr3AFIvAuUbrcH/zFVc8leMb7bt:Qw+asqN5aW/hL5Mhr3AFIv0u487

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 WildMouse@cock.li Write this ID in the title of your message 78CCDA1F In case of no answer in 24 hours write us to theese e-mails: WildMouse@cock.li 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

WildMouse@cock.li

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
  • 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\2023-03-09_29320eedebbf9198c3dad888578d0707_crysis.exe
    "C:\Users\Admin\AppData\Local\Temp\2023-03-09_29320eedebbf9198c3dad888578d0707_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:1932
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1596
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1872
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:676
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1588
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:228
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:524
        • 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:1368
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1156

      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

      Loading Replay Monitor...

      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-78CCDA1F.[WildMouse@cock.li].FUNNY
        Filesize

        23.5MB

        MD5

        636c2f03872fb96948f3525005ebf0d3

        SHA1

        323271a60a95fe51ddc2c7ebb8ffb93a008153f3

        SHA256

        5e1297a5da8dba3c4fefea55bf96b8d3bd02449aa3c32a2656481fe2b3379e7a

        SHA512

        f7e2acf293e23eefa2d389376bb962c248e459d9ca3ba451ee6f739a7fdca04abdef6d35f3c4bbb3663dfad149b76fbfc417f139b5cff5202d4dfda6023d9426

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

        13KB

        MD5

        d387ed8a2df1ab830c04d3636730f47e

        SHA1

        4857979d6f1d1368652ef466e93387f1abbe9937

        SHA256

        3d836b3b69b46a762fc2f88c14d0bcfc49416b26d5a3e75d08313dcd1911f31e

        SHA512

        7e27cbf31279aa0d3f9df498e9ce69d97cc046e4f15136a26445f45840a0d3710cbfe6866af4eae32ae64b078da28f0dee4f31797edc090d1c41c5f1914bff83

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

        13KB

        MD5

        d387ed8a2df1ab830c04d3636730f47e

        SHA1

        4857979d6f1d1368652ef466e93387f1abbe9937

        SHA256

        3d836b3b69b46a762fc2f88c14d0bcfc49416b26d5a3e75d08313dcd1911f31e

        SHA512

        7e27cbf31279aa0d3f9df498e9ce69d97cc046e4f15136a26445f45840a0d3710cbfe6866af4eae32ae64b078da28f0dee4f31797edc090d1c41c5f1914bff83

        Download Submit
      • memory/1616-20163-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp
        Filesize

        64KB

        Download