Overview

overview

10

Static

static

1

2023-04-13...is.exe

windows7-x64

10

2023-04-13...is.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    151s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    14-04-2023 02:52

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    2023-04-13_bf6e423769b1dc31dafc847cbfe9076a_crysis.exe

  • Size

    92KB

  • MD5

    bf6e423769b1dc31dafc847cbfe9076a

  • SHA1

    50db0bde95a3d257498ffc30250636d753c7ea58

  • SHA256

    7af890c71121d682203be3b23497272f4338cdc27f5af49c41f8275d582e85e1

  • SHA512

    a985faf89341ea70e1106f27b9e253660cc90ecf0dae17fc2f3a208bd5dd43a7b8bf7fd1e69a8f9b730208154a0a6ead53900d1e315138e9e2ed8a492791d347

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4A6GHr/gk1juEGsQJcntrUbSnmp8zaUbBa:Qw+asqN5aW/hLQOhZksGcB8yC8zacBa

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 prancesonce@tuta.io Write this ID in the title of your message A7344369 In case of no answer in 24 hours write us to theese e-mails: prancesonce@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 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.
Emails

prancesonce@tuta.io

prancesonce@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
  • Modifies extensions of user files 1 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
  • 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\2023-04-13_bf6e423769b1dc31dafc847cbfe9076a_crysis.exe
    "C:\Users\Admin\AppData\Local\Temp\2023-04-13_bf6e423769b1dc31dafc847cbfe9076a_crysis.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:1276
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1428
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1740
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:756
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1168
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2092
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3004
        • 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:2112
        • 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:2772
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1704

      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\Office64WW.msi.id-A7344369.[prancesonce@tuta.io].java
        Filesize

        3.6MB

        MD5

        77de0203a0bd2581d07d342f33bc3170

        SHA1

        7f9c7a626fb470483a27ae732af72bca67f1fe1c

        SHA256

        ac3ce6dbfb24158873ec2cbbcbd69385284567bc8cdc367e2607ee7dbba322ca

        SHA512

        f84db23e1d09405fd0d27245d912fbbd330a2bb52bf9d5013ec06774974dfeea99c48369ce3a95b88dd852f425f8007c111e73a20c3c6d0a14c4f0d1c51f2544

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

        13KB

        MD5

        d3baff6e135c386b1a47fefee8945fbb

        SHA1

        eb8532f0ad61abc9de2b28e42fce750d5e5ccad3

        SHA256

        ff64823ae34fe831e1d4e49e3ced68f4d7afe8aff14375c20c44eb9a33582a0c

        SHA512

        68185883c60263016cf8334e5a72bd75acca26defe4b6a3adc4d1b01edb0ec274fc072fa161287dcaff47edc6a4d818c456ad239b6bb37cec11b6e16396ac450

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

        13KB

        MD5

        d3baff6e135c386b1a47fefee8945fbb

        SHA1

        eb8532f0ad61abc9de2b28e42fce750d5e5ccad3

        SHA256

        ff64823ae34fe831e1d4e49e3ced68f4d7afe8aff14375c20c44eb9a33582a0c

        SHA512

        68185883c60263016cf8334e5a72bd75acca26defe4b6a3adc4d1b01edb0ec274fc072fa161287dcaff47edc6a4d818c456ad239b6bb37cec11b6e16396ac450

        Download Submit
      • memory/2112-20132-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp
        Filesize

        64KB

        Download