Overview

overview

10

Static

static

4cdcebf577...02.exe

windows7_x64

10

4cdcebf577...02.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    162s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    12-07-2022 04:50

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General

  • Target

    4cdcebf5775260b399bf03fa7ab0312629b4475619aa6eef8ed0fb4bdcf24502.exe

  • Size

    92KB

  • MD5

    36651e8d37129e065789f836cf353a08

  • SHA1

    c28e8f41b350410bf4e4f2e57cad6e51e6628f3e

  • SHA256

    4cdcebf5775260b399bf03fa7ab0312629b4475619aa6eef8ed0fb4bdcf24502

  • SHA512

    5c2cfca62ae7fa8c1b8b28130f126565b8e20c510ef326b7a3c65570e9f87706cc6145bb1f6911ed3e8b7ad533ddca6c0542783f755855502e6fcbb8754061b6

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\4cdcebf5775260b399bf03fa7ab0312629b4475619aa6eef8ed0fb4bdcf24502.exe
    "C:\Users\Admin\AppData\Local\Temp\4cdcebf5775260b399bf03fa7ab0312629b4475619aa6eef8ed0fb4bdcf24502.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:4644
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4376
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:4956
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:4396
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:688

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    File Deletion

    2
    T1107

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Inhibit System Recovery

    2
    T1490

    Replay Monitor

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    Downloads

    • memory/4376-130-0x0000000000000000-mapping.dmp
      Download
    • memory/4396-132-0x0000000000000000-mapping.dmp
      Download
    • memory/4956-131-0x0000000000000000-mapping.dmp
      Download