Overview

overview

10

Static

static

043990c482...1d.exe

windows7_x64

10

043990c482...1d.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    152s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    27-05-2022 21:46

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General

  • Target

    043990c482d023befba83039e6854a30f0baae01ae83db9f8559119c6db2321d.exe

  • Size

    92KB

  • MD5

    6a98716bbb12c3c947710eaeabc1a1b3

  • SHA1

    7d7829776ccebdf698012f548ee020483db3fa75

  • SHA256

    043990c482d023befba83039e6854a30f0baae01ae83db9f8559119c6db2321d

  • SHA512

    376150c7fe2c72dc0647ece913fe6cbbabe83ff7397e7c926833d7799fd6cdb1e4bf5b9de4cd32d79ddcb03c3f8e4da7e9cfe6d6ad5afa6eedb632c1578d1892

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 8698624B 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
  • 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
  • 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 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\043990c482d023befba83039e6854a30f0baae01ae83db9f8559119c6db2321d.exe
    "C:\Users\Admin\AppData\Local\Temp\043990c482d023befba83039e6854a30f0baae01ae83db9f8559119c6db2321d.exe"
    1⤵
    • 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:4668
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4588
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:3056
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3080
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4972
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:4040
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:2276
        • C:\Windows\System32\mshta.exe
          "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
          2⤵
            PID:1472
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:1808
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4380

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

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

            13KB

            MD5

            08b706f934fb1a864652ef02e1a2ed76

            SHA1

            b80f60054d229bc4d94f3f17ae0c14da838571c5

            SHA256

            2871c12139bf5fd1ed0e0e8b3f037801022c0b8e51b237370c3e70a4a8d8e1e9

            SHA512

            21d902f3acfb079296268f09f45d0a3783f82e76848e13b45e5c068e45ab51bfc433dfc72ab56b2d55223999bdb19ecd093f9fe92a05ae7179302b843c4068ae

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

            13KB

            MD5

            08b706f934fb1a864652ef02e1a2ed76

            SHA1

            b80f60054d229bc4d94f3f17ae0c14da838571c5

            SHA256

            2871c12139bf5fd1ed0e0e8b3f037801022c0b8e51b237370c3e70a4a8d8e1e9

            SHA512

            21d902f3acfb079296268f09f45d0a3783f82e76848e13b45e5c068e45ab51bfc433dfc72ab56b2d55223999bdb19ecd093f9fe92a05ae7179302b843c4068ae

            Download Submit

          • memory/1472-136-0x0000000000000000-mapping.dmp

            Download

          • memory/1808-137-0x0000000000000000-mapping.dmp

            Download

          • memory/2276-135-0x0000000000000000-mapping.dmp

            Download

          • memory/3056-131-0x0000000000000000-mapping.dmp

            Download

          • memory/3080-132-0x0000000000000000-mapping.dmp

            Download

          • memory/4040-134-0x0000000000000000-mapping.dmp

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          • memory/4588-130-0x0000000000000000-mapping.dmp

            Download

          • memory/4972-133-0x0000000000000000-mapping.dmp

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