Overview

overview

10

Static

static

3

2023-12-29...ma.exe

windows7-x64

10

2023-12-29...ma.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    0s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-12-2023 16:45

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General

  • Target

    2023-12-29_43eb2adc4b1d22c5564764ce79e2105d_crysis_dharma.exe

  • Size

    92KB

  • MD5

    43eb2adc4b1d22c5564764ce79e2105d

  • SHA1

    fcf5c8f18e0392ad814965f940c3f771aea53eab

  • SHA256

    398785f9ad7532ad6d378fa0f23a79aff492561afca6adf8a7df13c71a37aec9

  • SHA512

    8537af76b3c569f7b4199177413c9410de5f612e4240f05753389e0ed601bfa6477cf9739264bd27d659aecf326488ca8b8eee51976fe37d26441af87d314c74

  • SSDEEP

    1536:mBwl+KXpsqN5vlwWYyhY9S4AcFDbjzOx/8di/Laww8NOsC7okPpp3tb1:Qw+asqN5aW/hLKpjzOx/zzaH8UsC9PpB

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) 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2023-12-29_43eb2adc4b1d22c5564764ce79e2105d_crysis_dharma.exe
    "C:\Users\Admin\AppData\Local\Temp\2023-12-29_43eb2adc4b1d22c5564764ce79e2105d_crysis_dharma.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:2800
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4492
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:4084
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:6216
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe"
        2⤵
          PID:8776
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            3⤵
            • Interacts with shadow copies
            PID:7464
          • C:\Windows\system32\mode.com
            mode con cp select=1251
            3⤵
              PID:5020
          • C:\Windows\System32\mshta.exe
            "C:\Windows\System32\mshta.exe" "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
            2⤵
              PID:7096
            • C:\Windows\System32\mshta.exe
              "C:\Windows\System32\mshta.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Info.hta"
              2⤵
                PID:5948
            • C:\Windows\system32\vssvc.exe
              C:\Windows\system32\vssvc.exe
              1⤵
                PID:5736

              Network

              MITRE ATT&CK Matrix ATT&CK v13

              Initial Access

              Execution

              Persistence

              Boot or Logon Autostart Execution

              1
              T1547

              Registry Run Keys / Startup Folder

              1
              T1547.001

              Privilege Escalation

              Boot or Logon Autostart Execution

              1
              T1547

              Registry Run Keys / Startup Folder

              1
              T1547.001

              Defense Evasion

              Indicator Removal

              2
              T1070

              File Deletion

              2
              T1070.004

              Modify Registry

              1
              T1112

              Credential Access

              Discovery

              Lateral Movement

              Collection

              Exfiltration

              Command and Control

              Impact

              Inhibit System Recovery

              2
              T1490

              Resource Development

              Reconnaissance

              Replay Monitor

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              Downloads