Overview

overview

10

Static

static

software.exe

windows7_x64

10

software.exe

windows10_x64

10

Analysis

  • max time kernel
    180s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    02-11-2021 08:56

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General

  • Target

    software.exe

  • Size

    92KB

  • MD5

    b75251731b56827c342c99aa971ba08f

  • SHA1

    40b1c7755c51d2a01989129e789babb2b8b63ccf

  • SHA256

    3366e3811e6efd2237a9f829af0551e46e79001ae05192e90ccf1d6c047312c1

  • SHA512

    ddd9af6c117665383d74a81652d6f59f4967d1ca4be0b4456bc0680675c932d9f4b3448a560f343420909eb4cba7aa4f98ed7960e52783b85b220ed2b1b4f1e8

Score
10/10
dharmapersistenceransomwarespywarestealer

Malware Config

Extracted

Path

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

Ransom Note
YOUR FILES ARE ENCRYPTED 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] ATTENTION! We recommend you contact us directly to avoid overpaying agents 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 2 IoCs

    Ransomware generally changes the extension on encrypted files.

    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). Likely ransomware behaviour.

  • 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
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\software.exe
    "C:\Users\Admin\AppData\Local\Temp\software.exe"
    1⤵
    • Modifies extensions of user files
    • 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:1112
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1120
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:1756
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:556
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1940
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1960
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:1628
        • 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
          • Suspicious use of FindShellTrayWindow
          PID:1688
        • 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:1084
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1192
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\MANUAL.txt
        1⤵
        • Opens file in notepad (likely ransom note)
        PID:1996

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta
        MD5

        4eb889d2cec5155687ce29cb810148b7

        SHA1

        4901b062b674cb2094cc07dabce9b507af83de89

        SHA256

        e3feca82c0084f2398b986a4e5522ed3ac94c39b33c0b172dd437e13f7d5286d

        SHA512

        47d10d81e4e4a89d2ac210a84730898e13d5e8af495b23f999c20b1255c006def3f99cdc147ebf1f997fa44ae7b8bdc14862fdcd686a224e3d218c7fed0fb908

        Download Submit
      • C:\Users\Admin\Desktop\MANUAL.txt
        MD5

        0ae356a50c954704d1b44c3cc32f54f3

        SHA1

        4089c9021cb1cf3b13e7110b5c7cd1d0d9d4ce53

        SHA256

        ed1b2a23a7ebaec4b9c4ce5d9f25aebd93cbb7a02590c5e4e063b5d3b7131035

        SHA512

        56559757f6aa28345b74b19170f6783fc0a5551d7a6e3fe9189936c41e4f06693f3bdc8f15ea38fa834f2e47ffa9717174a66d3a887df2a06e92f59d5e63f168

        Download Submit
      • memory/556-56-0x0000000000000000-mapping.dmp
        Download
      • memory/1084-61-0x0000000000000000-mapping.dmp
        Download
      • memory/1112-53-0x00000000751A1000-0x00000000751A3000-memory.dmp
        Filesize

        8KB

        Download
      • memory/1120-54-0x0000000000000000-mapping.dmp
        Download
      • memory/1628-59-0x0000000000000000-mapping.dmp
        Download
      • memory/1688-60-0x0000000000000000-mapping.dmp
        Download
      • memory/1756-55-0x0000000000000000-mapping.dmp
        Download
      • memory/1940-57-0x0000000000000000-mapping.dmp
        Download
      • memory/1960-58-0x0000000000000000-mapping.dmp
        Download
      • memory/1996-63-0x000007FEFB8B1000-0x000007FEFB8B3000-memory.dmp
        Filesize

        8KB

        Download