Overview

overview

10

Static

static

90c54543aa...b2.exe

windows7_x64

10

90c54543aa...b2.exe

windows10_x64

10

Analysis

  • max time kernel
    153s
  • max time network
    116s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    11-09-2020 08:09

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General

  • Target

    90c54543aaf085e00879d4fe98a6dfb8148548f374828d50b6e3ac44668138b2.exe

  • Size

    92KB

  • MD5

    37c1ee5708d1f5e45cea516059fd12f8

  • SHA1

    d9102824ed07a4c29bd364fd0f4e08df1f5dc1d9

  • SHA256

    90c54543aaf085e00879d4fe98a6dfb8148548f374828d50b6e3ac44668138b2

  • SHA512

    4bc1e5cfb0e74bc6c4a3a29c343665f55667582ade43cc6137ee2307559b806a498b7379823ee0a4d861cd841ced3fda60eaaf7ffacf96129eb0d6727d39285e

Score
10/10
ransomwaredharmapersistence

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) 4 IoCs
  • Drops file in System32 directory 1 IoCs
  • Modifies service 2 TTPs 5 IoCs
    persistence
  • Drops file in Program Files directory 23326 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

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

    ransomware
  • Suspicious behavior: EnumeratesProcesses 570 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\90c54543aaf085e00879d4fe98a6dfb8148548f374828d50b6e3ac44668138b2.exe
    "C:\Users\Admin\AppData\Local\Temp\90c54543aaf085e00879d4fe98a6dfb8148548f374828d50b6e3ac44668138b2.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:2080
    • C:\Windows\system32\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2436
      • C:\Windows\system32\mode.com
        mode con cp select=1251
        3⤵
          PID:3892
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          3⤵
          • Interacts with shadow copies
          PID:508
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Modifies service
      • Suspicious use of AdjustPrivilegeToken
      PID:3504

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Modify Existing Service

    1
    T1031

    Privilege Escalation

    Defense Evasion

    File Deletion

    2
    T1107

    Modify Registry

    2
    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/508-2-0x0000000000000000-mapping.dmp
      Download
    • memory/2436-0-0x0000000000000000-mapping.dmp
      Download
    • memory/3892-1-0x0000000000000000-mapping.dmp
      Download