Analysis

  • max time kernel
    4294211s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    05-03-2022 23:46

General

  • Target

    4575d2fa721acf50f2c5cb9c89933bb9bfed9014ea04b3d3dc5bdfa858496b44.exe

  • Size

    92KB

  • MD5

    8d238d21851718af2c0615332560422a

  • SHA1

    dd99f210b4bf89b7a5c26e7013488b84c1e1c220

  • SHA256

    4575d2fa721acf50f2c5cb9c89933bb9bfed9014ea04b3d3dc5bdfa858496b44

  • SHA512

    8446d8a1669c0ed0359effb33cfe29e59560201aed39f879f0ff70615ff6dc83232885b71a5307e63ca31245128ab41666b6fb66fedf654393efa71cdb2ff045

Malware Config

Extracted

Path

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

Ransom Note
YOUR FILES ARE ENCRYPTED Don't worry,you can return all your files! If you want to restore them, follow this link: email [email protected] YOUR ID If you have not been answered via the link within 12 hours,Telegram.org account: @rogerbackup or write to us by e-mail: [email protected] 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.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • 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.

  • Adds Run key to start application 2 TTPs 3 IoCs
  • 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.

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4575d2fa721acf50f2c5cb9c89933bb9bfed9014ea04b3d3dc5bdfa858496b44.exe
    "C:\Users\Admin\AppData\Local\Temp\4575d2fa721acf50f2c5cb9c89933bb9bfed9014ea04b3d3dc5bdfa858496b44.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:1988
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1888
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:968
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:620
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1304
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          3⤵
            PID:1096
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:896
        • 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:1596
        • 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:1504
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1224

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

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

        MD5

        b892aa7a9e41f55dc5b2ea6cb840bc2b

        SHA1

        2fab7fad984a838a5901cfe4978e101423301a20

        SHA256

        3c9c3f81402c883ec550137bd384be4bca343390d13bb271c813cc2f2357574f

        SHA512

        dbc8a4714adf43ac8821ee8e03aedb741041baba74ded6a8bd075cfe13e024765008dce631ab7b3f6de1c3e3d63f00396589547ae35eb18bd7022ffef4ee3b99

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

        MD5

        b892aa7a9e41f55dc5b2ea6cb840bc2b

        SHA1

        2fab7fad984a838a5901cfe4978e101423301a20

        SHA256

        3c9c3f81402c883ec550137bd384be4bca343390d13bb271c813cc2f2357574f

        SHA512

        dbc8a4714adf43ac8821ee8e03aedb741041baba74ded6a8bd075cfe13e024765008dce631ab7b3f6de1c3e3d63f00396589547ae35eb18bd7022ffef4ee3b99

      • memory/1504-55-0x000007FEFC4D1000-0x000007FEFC4D3000-memory.dmp

        Filesize

        8KB

      • memory/1988-54-0x0000000076271000-0x0000000076273000-memory.dmp

        Filesize

        8KB