Overview

overview

10

Static

static

10

2024-06-10...ma.exe

windows7-x64

10

2024-06-10...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    10-06-2024 19:25

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General

  • Target

    2024-06-10_4045af2b85614a715eff9f3dd4102f91_crysis_dharma.exe

  • Size

    92KB

  • MD5

    4045af2b85614a715eff9f3dd4102f91

  • SHA1

    57ba60686e03f028abe10a54c7d22c270a011ee3

  • SHA256

    2366ec4f33e0ee8c70ac849636fe13ada29952709d9bac47400c8f5d258f279b

  • SHA512

    b0f93cc6be420a06d05ff0a7bcb13ad75f6d3249ff7a56e0c44a350c0a45590d788fc6202c5816034235409591ee21c8b7f011c9074ef38349e424d68f429f00

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4AxoFaOV0Xt2lj730j/enn9tvfXpVcCu9du:ww+asqN5aW/hSQYOVY2lj73QGvfXHxue

Score
10/10
dharmadefense_evasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

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

Ransom Note
All FILES ENCRYPTED "RSA1024" All YOUR FILES HAVE BEEN ENCRYPTED!!! IF YOU WANT TO RESTORE THEM, WRITE US TO THE E-MAIL [email protected] IN THE LETTER WRITE YOUR ID, YOUR ID D47C37D6 IF YOU ARE NOT ANSWERED, WRITE TO EMAIL: [email protected] YOUR SECRET KEY WILL BE STORED ON A SERVER 7 DAYS, AFTER 7 DAYS IT MAY BE OVERWRITTEN BY OTHER KEYS, DON'T PULL TIME, WAITING YOUR EMAIL FREE DECRYPTION FOR PROOF 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.) DECRYPTION PROCESS: When you make sure of decryption possibility transfer the money to our bitcoin wallet. As soon as we receive the money we will send you: 1. Decryption program. 2. Detailed instruction for decryption. 3. And individual keys for decrypting your files. !WARNING! 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 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Renames multiple (315) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    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\2024-06-10_4045af2b85614a715eff9f3dd4102f91_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_4045af2b85614a715eff9f3dd4102f91_crysis_dharma.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:2248
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2392
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2292
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2888
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4864
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:4920
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:4956
        • 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:4992
        • 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:5024
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:964

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-D47C37D6.[[email protected]].0day
        Filesize

        23.5MB

        MD5

        02ed6baf70c8eb072116d0fcb164a6dd

        SHA1

        599c3c4868da8fa8c7c92eb14fc10d0604f3719e

        SHA256

        5904ba1b4af1533d7541a072e2ffa66bfa92390269775755741d177ff38b9131

        SHA512

        e07f3e2f7adc5c812447acad86f124a99238419d70da289cd52aeaf9d8e8b4453f563a006db19b31c9b34aed04f6ecdfaac774be791a251e329cd72479d16a13

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

        13KB

        MD5

        f209baeb053e3e8c7dd34124ebbdb7cd

        SHA1

        5581cc445bdef02b1406d41d92a02240b8399226

        SHA256

        58152aacd61f44aec8d747c14b484856a778c98a94b270f05454c3bc349b43be

        SHA512

        41bba2c1e5060f522943794bcb8ba62d6534bcf39d9ef18401f89b3b8db133b2be43c16594574d910c4d9cf82b6e9f5ed9e36b9485c4b3feef060d2f5645b7c3

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      • memory/4992-20270-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp

        Filesize

        64KB

        Download