Overview

overview

10

Static

static

8

b4244fea5f...6c.exe

windows7_x64

10

b4244fea5f...6c.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    189s
  • max time network
    189s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    02-05-2022 18:28

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General

  • Target

    b4244fea5f2374b54dcd5fed007ec2007653201e1caa7f6bcb70a8b50dce496c.exe

  • Size

    196KB

  • MD5

    09a91d028245ee4a2a788682b00c993d

  • SHA1

    399ff8548e0371c15b633bf6b02719dff1d27557

  • SHA256

    b4244fea5f2374b54dcd5fed007ec2007653201e1caa7f6bcb70a8b50dce496c

  • SHA512

    d92e5aedb1fe17e9432c3a39699da3343cb24d85a4cd110386c3d3a34ebbb5ebb180e3e06cf8e8804790408f3ee3d5b0c70574175b04e9d5b017e9cd0fa51c77

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\b4244fea5f2374b54dcd5fed007ec2007653201e1caa7f6bcb70a8b50dce496c.exe
    "C:\Users\Admin\AppData\Local\Temp\b4244fea5f2374b54dcd5fed007ec2007653201e1caa7f6bcb70a8b50dce496c.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:4204
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4000
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:4376
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:4604
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4584

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/4000-132-0x0000000000000000-mapping.dmp

      Download

    • memory/4204-130-0x00000000051E7000-0x00000000051FA000-memory.dmp

      Filesize

      76KB

      Download

    • memory/4204-131-0x00000000051A0000-0x00000000051B9000-memory.dmp

      Filesize

      100KB

      Download

    • memory/4204-135-0x0000000000400000-0x000000000515A000-memory.dmp

      Filesize

      77.4MB

      Download

    • memory/4376-133-0x0000000000000000-mapping.dmp

      Download

    • memory/4604-134-0x0000000000000000-mapping.dmp

      Download