Overview

overview

10

Static

static

a6ed8beb59...7b.exe

windows7-x64

10

a6ed8beb59...7b.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-12-2022 14:36

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General

  • Target

    a6ed8beb599f2aa594298076a2e8312871a2b12feb8e5d072d51335f21f85d7b.exe

  • Size

    677KB

  • MD5

    2d4ec86793fec1e10ac8fb617b2dcdbd

  • SHA1

    078df2b23e7e24f2397532f9ec2694191fd9cc20

  • SHA256

    a6ed8beb599f2aa594298076a2e8312871a2b12feb8e5d072d51335f21f85d7b

  • SHA512

    1e15b4c910532ed36cf3adf605f744784224ceaa815e71588fb521f0e7b76975dc37889e6c8ac2e1c888060eda2380850c8877a801c74e222db043715719c5de

  • SSDEEP

    12288:5IODa1GPYOBsDMOUaIQpGyEV3T5W241YcWEhpEdVe1/4vS1ZoYGIRUafy5LT+0w:5IO+aYxHjpYT5s1YcWEhpEdVe1/4vS1T

Score
10/10
dharmapersistenceransomwarespywarestealer

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 61963FB5 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 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
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Suspicious use of SetThreadContext 1 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a6ed8beb599f2aa594298076a2e8312871a2b12feb8e5d072d51335f21f85d7b.exe
    "C:\Users\Admin\AppData\Local\Temp\a6ed8beb599f2aa594298076a2e8312871a2b12feb8e5d072d51335f21f85d7b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2632
    • C:\Users\Admin\AppData\Local\Temp\a6ed8beb599f2aa594298076a2e8312871a2b12feb8e5d072d51335f21f85d7b.exe
      C:\Users\Admin\AppData\Local\Temp\a6ed8beb599f2aa594298076a2e8312871a2b12feb8e5d072d51335f21f85d7b.exe
      2⤵
      • Modifies extensions of user files
      • Checks computer location settings
      • 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:640
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4420
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          4⤵
            PID:4700
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            4⤵
            • Interacts with shadow copies
            PID:2344
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:400
          • C:\Windows\system32\mode.com
            mode con cp select=1251
            4⤵
              PID:2184
            • C:\Windows\system32\vssadmin.exe
              vssadmin delete shadows /all /quiet
              4⤵
              • Interacts with shadow copies
              PID:1148
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            3⤵
              PID:2264
            • C:\Windows\System32\mshta.exe
              "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
              3⤵
                PID:1216
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4416

          Network

          MITRE ATT&CK Enterprise v6

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          Downloads

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

            13KB

            MD5

            8283156dbbb827c57d4ffe190700a9ae

            SHA1

            2464428e828075b5f5348d5dfe24a63cf5f77958

            SHA256

            53c45532dfb1702a047a98bdb12ac97fa03c960288c03504be5f1dbbe3d2ce69

            SHA512

            a9dd8646d635df314bb492932eddc06a633055473eba412f838e08291515843f9e997de0407a4c0cf312c905844376f44d1a6a9a18ef112c4e166a30694c3762

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

            13KB

            MD5

            8283156dbbb827c57d4ffe190700a9ae

            SHA1

            2464428e828075b5f5348d5dfe24a63cf5f77958

            SHA256

            53c45532dfb1702a047a98bdb12ac97fa03c960288c03504be5f1dbbe3d2ce69

            SHA512

            a9dd8646d635df314bb492932eddc06a633055473eba412f838e08291515843f9e997de0407a4c0cf312c905844376f44d1a6a9a18ef112c4e166a30694c3762

            Download Submit

          • memory/400-143-0x0000000000000000-mapping.dmp

            Download

          • memory/640-134-0x0000000000400000-0x0000000000419000-memory.dmp

            Filesize

            100KB

            Download

          • memory/640-133-0x0000000000000000-mapping.dmp

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          • memory/640-139-0x0000000000400000-0x0000000000419000-memory.dmp

            Filesize

            100KB

            Download

          • memory/1148-145-0x0000000000000000-mapping.dmp

            Download

          • memory/1216-147-0x0000000000000000-mapping.dmp

            Download

          • memory/2184-144-0x0000000000000000-mapping.dmp

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          • memory/2264-146-0x0000000000000000-mapping.dmp

            Download

          • memory/2344-142-0x0000000000000000-mapping.dmp

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          • memory/2632-132-0x0000000002B20000-0x0000000002B53000-memory.dmp

            Filesize

            204KB

            Download

          • memory/4420-140-0x0000000000000000-mapping.dmp

            Download

          • memory/4700-141-0x0000000000000000-mapping.dmp

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