Overview

overview

10

Static

static

10

2024-04-24...ma.exe

windows7-x64

10

2024-04-24...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-04-2024 07:23

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General

  • Target

    2024-04-24_1f67a875b46d6cf3b40928dae509de64_crysis_dharma.exe

  • Size

    92KB

  • MD5

    1f67a875b46d6cf3b40928dae509de64

  • SHA1

    66b548d44fd4cb54ccfefac254e9c9c1024bea1b

  • SHA256

    eea54395aa2ff792d0d51ecbad624d74f28f72fcdd3a7610bdf88f8dccb19f2a

  • SHA512

    a07a9ec4914ed209b5736a184aa48859ff978762fa846c61128cc106c8d89c14509765ab1b0154a097821df2226b068010241dd2ffa8e77208e38255e6435e4e

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AiEfgq8u2qf+XfjHPjZZTlrYeKHgZEci7:Qw+asqN5aW/hLRfgM2qcjvjZZmeKp

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! Don't worry, you can return all your files! If you want to restore them, write to the mail: [email protected] YOUR ID [email protected] Free decryption as guarantee Before paying you can send us up to 3 files for free decryption. The total size of files must be less than 3Mb (non archived), and files should not contain valuable information. (databases,backups, large excel sheets, etc.) How to obtain 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 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Renames multiple (324) 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\2024-04-24_1f67a875b46d6cf3b40928dae509de64_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-24_1f67a875b46d6cf3b40928dae509de64_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:1612
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:872
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:2156
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2468
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1768
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:2072
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:852
        • 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:2412
        • 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:2004
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2936

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\MSOCache\All Users\{90140000-0011-0000-0000-0000000FF1CE}-C\ProPsWW.cab.id-B28B13A4.[[email protected]].ATCK
        Filesize

        143.1MB

        MD5

        6145cb9cd1421fa8ea405fa022cdeb21

        SHA1

        93a0abf5a653a8791112af2dd3bf95406252c6e4

        SHA256

        fadf177861e6570b6648e352cb105d559df68d98c870dfc13eed574bc56fdd79

        SHA512

        d0f832c64f6a6cd69e24ffb64514b4bb7ba81171e96c5cb1663deeb045fa3fccbb86ea26c66b274e824d76f20a6792bc241e16177fec773af654ca42a5ea65e4

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

        4KB

        MD5

        6ddd00abc42d28241b6b5a0c089c0f03

        SHA1

        0e16bdbdc03650a64f577b5175ccb7e5f12d941f

        SHA256

        0b3d783d229895125dfd97cb4df5837a891fa8bc53e5b217e742090ef280a9cd

        SHA512

        67c053fbc6ba81e22d08724a8b58f741ad3bff9f5b47261ba5578aad7db816d4c9dce15c0bcdddfb0d12c9efa81eecc8da7268efdbdb294a3caf8d5fae61e19b

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      • memory/2412-20064-0x000007FFFFF80000-0x000007FFFFF90000-memory.dmp

        Filesize

        64KB

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