Overview

overview

10

Static

static

10

2024-07-01...ma.exe

windows7-x64

10

2024-07-01...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    01-07-2024 13:25

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General

  • Target

    2024-07-01_511738859da1bb1e49d6391927d63783_crysis_dharma.exe

  • Size

    92KB

  • MD5

    511738859da1bb1e49d6391927d63783

  • SHA1

    fe7ac5b4d0372b513c13f2c8f23b0a59019773bf

  • SHA256

    20ce14d53c4c1018a9c3a9fe6bffa498cfbf437b6c332c65354a84c876732fdf

  • SHA512

    bd67af55703f3c71a92947602ce9e5989b856bd8c59952bc70c784c39dbf5d62a0586895ac047d5bde3f90b7f6a3d6de043d3d60898b69b558e60ba36fc821fb

  • SSDEEP

    1536:0Bwl+KXpsqN5vlwWYyh69S4AnT2TtLjXZ67McsRmaBNSaHRl63:ew+asqN5aW/h5RgjXZ675aBNBO

Score
10/10
dharmadefense_evasionexecutionimpactpersistenceransomwarespywarestealer

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 5E2758FE 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 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.

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 3 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\2024-07-01_511738859da1bb1e49d6391927d63783_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-01_511738859da1bb1e49d6391927d63783_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:1976
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2752
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2684
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3004
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1108
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1488
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2172
        • 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:2024
        • 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:396
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2228

      Network

      MITRE ATT&CK Enterprise v15

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\OWOW64WW.cab.id-5E2758FE.[[email protected]].ncov
        Filesize

        23.5MB

        MD5

        4213c62c99a24621cca501d9d4565f9f

        SHA1

        36d18e22ae2c2c15458a9da26df67ef2b8b3364c

        SHA256

        c48f886dc7eebb05165332a03a209e6c9fcc636c05d7d59b5af96e82985b10c5

        SHA512

        8989b2be049c81ab0d4e234d74085222f8b74f3b94756ed1339b4be24729f06f0004bb8ee6af389af01b38960e4b7d7dc05880d455a1baadc9d3ece0e752a590

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

        13KB

        MD5

        1ecee676c7acf9f1d8117448a535cae5

        SHA1

        e8f24e7c78254bb93f7666e601f51e331a698d96

        SHA256

        4239d5a207ca59175fab3a76985870542dc7c4b01c1cf4c3046c958f9d2782a8

        SHA512

        db6e46c6676f88e6ab19144b3489c9646b55404451773b70729f14228173e15a604761768c98dc0cd39291ff551560ba77bdeedf2677943d750844adecd1c2bc

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      • memory/396-20255-0x000007FFFFF90000-0x000007FFFFFA0000-memory.dmp

        Filesize

        64KB

        Download