Overview

overview

10

Static

static

1fefdcad66...d0.exe

windows7_x64

10

1fefdcad66...d0.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    156s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    12-06-2022 14:12

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General

  • Target

    1fefdcad66245c5731cd3b81b189b34da4d868444c2527674dc342a43fa576d0.exe

  • Size

    565KB

  • MD5

    af1f766213f5d5fc95c8a2739e13552f

  • SHA1

    c293a5c354d3b8576f643116b346c4d88af82212

  • SHA256

    1fefdcad66245c5731cd3b81b189b34da4d868444c2527674dc342a43fa576d0

  • SHA512

    8c469bdf38cc6238a7a92f4499ed5ef44d8101090625c0dc60579577154bdebe7c7e06b1b5d170f66e044f5976786b1de15b7c2cec7e4adb9c7ad7d773ee5b92

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
  • Suspicious use of SetThreadContext 1 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 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1fefdcad66245c5731cd3b81b189b34da4d868444c2527674dc342a43fa576d0.exe
    "C:\Users\Admin\AppData\Local\Temp\1fefdcad66245c5731cd3b81b189b34da4d868444c2527674dc342a43fa576d0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2992
    • C:\Users\Admin\AppData\Local\Temp\1fefdcad66245c5731cd3b81b189b34da4d868444c2527674dc342a43fa576d0.exe
      C:\Users\Admin\AppData\Local\Temp\1fefdcad66245c5731cd3b81b189b34da4d868444c2527674dc342a43fa576d0.exe
      2⤵
      • 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:4436
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4244
        • C:\Windows\system32\mode.com
          mode con cp select=1251
          4⤵
            PID:940
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            4⤵
            • Interacts with shadow copies
            PID:1880
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1500

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/940-139-0x0000000000000000-mapping.dmp

      Download

    • memory/1880-140-0x0000000000000000-mapping.dmp

      Download

    • memory/2992-130-0x0000000004200000-0x0000000004233000-memory.dmp

      Filesize

      204KB

      Download

    • memory/4244-138-0x0000000000000000-mapping.dmp

      Download

    • memory/4436-131-0x0000000000000000-mapping.dmp

      Download

    • memory/4436-132-0x0000000000400000-0x0000000000419000-memory.dmp

      Filesize

      100KB

      Download

    • memory/4436-137-0x0000000000400000-0x0000000000419000-memory.dmp

      Filesize

      100KB

      Download