Overview

overview

10

Static

static

10

2024-06-13...ma.exe

windows7-x64

10

2024-06-13...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    13-06-2024 00:46

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General

  • Target

    2024-06-13_8eff2557176175b36f7dfbc96d66de7e_crysis_dharma.exe

  • Size

    92KB

  • MD5

    8eff2557176175b36f7dfbc96d66de7e

  • SHA1

    c4bd1673a1b213eb76bd4d5585b458e89186ba5c

  • SHA256

    29558b5b8abad441eff5491d4aab565d015fbb3bffc12560e8fd0988ca814b63

  • SHA512

    7367a58c453db940e261a72b66e3c131eafe6885fc2fba04a782a963489875f99ddd6ea38e1193ebbc41d5ac6663d43981bb9776dee328783c2ffb5a26e3e3f1

  • SSDEEP

    1536:GBwl+KXpsqN5vlwWYyhZ9S4Ak8ISyJOR6feBijpLOzECROmmX:ww+asqN5aW/hSDILJOaeB06Iz

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 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 FE6C47E1 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 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\2024-06-13_8eff2557176175b36f7dfbc96d66de7e_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_8eff2557176175b36f7dfbc96d66de7e_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:1588
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2340
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2776
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2532
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1512
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:900
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:3904
        • 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:1020
        • 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:2904
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2188

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-FE6C47E1.[[email protected]].arrow
        Filesize

        23.5MB

        MD5

        685034d27cc5bfa41ab07f9771ee5b20

        SHA1

        1d8e7064e70951536bfb49ad0d6a93e9cf3033c4

        SHA256

        1c28a62c5f1234ea5fd19d7c3b016d47eb85537ae01cfa89997ddc2df4d733cc

        SHA512

        65b8c383babcaa5743def69d0ff4c7e09a26b98364d8446a05ea506eb46e4884f86b3d393f6c3c11d9bb58c83194997dba143bf0bed9eccadbc38a5374583fa5

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

        13KB

        MD5

        656d4f1da97cac9c417bc3d0102953bb

        SHA1

        92b6b194cbb4768a2ed8060f08b9637b06078380

        SHA256

        40ae4592a079fb5feeb28fe5ab5505bac59ce461b8f87f6b1d8ed373fd885020

        SHA512

        6a3377017c2fc5e57739b9c643c39815348c70736b84226a62332e6e2730577519b6c3521031073e520616b442c28602d5a633a0183a8134cec25da0ee6425b4

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      • memory/1020-20267-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp

        Filesize

        64KB

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