Overview

overview

10

Static

static

87be242c76...19.exe

windows7_x64

10

87be242c76...19.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    205s
  • max time network
    216s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    08-05-2022 06:19

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General

  • Target

    87be242c76c959d2f30288245e2221856f667d918a306b100046f9264146dc19.exe

  • Size

    180KB

  • MD5

    ea59aebcc5588a41fdb9929349bf74af

  • SHA1

    ddb409120441833252210b193785a15fbd381c5e

  • SHA256

    87be242c76c959d2f30288245e2221856f667d918a306b100046f9264146dc19

  • SHA512

    67e9c412db7c7aac590312f6407b1a7f6dac697b0325aed5c8501d033d8b866aa839c9720e60f38a85e409f8d99857004e615e91e04dca919919aaf35ac52232

Score
10/10
dharmapersistenceransomware

Malware Config

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
  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops desktop.ini file(s) 3 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 1 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 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\87be242c76c959d2f30288245e2221856f667d918a306b100046f9264146dc19.exe
    "C:\Users\Admin\AppData\Local\Temp\87be242c76c959d2f30288245e2221856f667d918a306b100046f9264146dc19.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:3588
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2284
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:4632
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:4580
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1208

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/2284-133-0x0000000000000000-mapping.dmp

      Download

    • memory/3588-130-0x00000000009A8000-0x00000000009BB000-memory.dmp

      Filesize

      76KB

      Download

    • memory/3588-131-0x0000000000940000-0x0000000000959000-memory.dmp

      Filesize

      100KB

      Download

    • memory/3588-132-0x0000000000400000-0x00000000007EA000-memory.dmp

      Filesize

      3.9MB

      Download

    • memory/4580-135-0x0000000000000000-mapping.dmp

      Download

    • memory/4632-134-0x0000000000000000-mapping.dmp

      Download