Analysis

  • max time kernel
    168s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220310-en
  • submitted
    25-03-2022 06:52

General

  • Target

    add93ff66529e153263c05c8a01ea9b433788b861a2a5eb3def7bd538eb143e0.exe

  • Size

    341KB

  • MD5

    d991b38f6102454e3148d402ddde6497

  • SHA1

    a316dfc04d167b003c61d21e577ba79324138c19

  • SHA256

    add93ff66529e153263c05c8a01ea9b433788b861a2a5eb3def7bd538eb143e0

  • SHA512

    baa8d57919f8ef7eaf26f00dc1ce0acf13fc55ab6750488e2dfbcd59e89dd5b0b63582f9ff5e06a14226f5e753cf84af7d4f87cac768204ddae03626877bb9b2

Malware Config

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 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 2 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\add93ff66529e153263c05c8a01ea9b433788b861a2a5eb3def7bd538eb143e0.exe
    "C:\Users\Admin\AppData\Local\Temp\add93ff66529e153263c05c8a01ea9b433788b861a2a5eb3def7bd538eb143e0.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:2352
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1676
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:4600
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:3992
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4328

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1676-137-0x0000000000000000-mapping.dmp

    • memory/2352-134-0x0000000004880000-0x0000000004892000-memory.dmp

      Filesize

      72KB

    • memory/2352-135-0x00000000048A0000-0x00000000048B9000-memory.dmp

      Filesize

      100KB

    • memory/2352-136-0x0000000000400000-0x00000000046D4000-memory.dmp

      Filesize

      66.8MB

    • memory/3992-139-0x0000000000000000-mapping.dmp

    • memory/4600-138-0x0000000000000000-mapping.dmp