Overview

overview

10

Static

static

798fd3d13f...63.exe

windows7_x64

10

798fd3d13f...63.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    152s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    15/04/2022, 06:50

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General

  • Target
    798fd3d13fa63ca5d0d89c1a7dc1027f17f55df19cef5c28faa3d6d5a6c53063.exe
  • Size 144KB
  • Sample220415-hlz9vadde2
  • SHA256 798fd3d13fa63ca5d0d89c1a7dc1027f17f55df19cef5c28faa3d6d5a6c53063
  • MD5 SHA1 SHA512
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\798fd3d13fa63ca5d0d89c1a7dc1027f17f55df19cef5c28faa3d6d5a6c53063.exe
    "C:\Users\Admin\AppData\Local\Temp\798fd3d13fa63ca5d0d89c1a7dc1027f17f55df19cef5c28faa3d6d5a6c53063.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:1808
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2688
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:4880
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:2604
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1676

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/1808-130-0x0000000003358000-0x000000000336B000-memory.dmp
          Download

          memory/1808-131-0x0000000003358000-0x000000000336B000-memory.dmp
          Download

          memory/1808-132-0x00000000030F0000-0x0000000003109000-memory.dmp
          Download

          memory/1808-133-0x0000000000400000-0x0000000002FAF000-memory.dmp
          Download