Overview

overview

10

Static

static

1

RNSM00274.7z

windows7-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    RNSM00274.7z
  • Size 7.2MB
  • Sample241122-1qtlzawmgn
  • SHA256 1149ed9ea9f52479ac6b28f048afbea32353e7a5c28030a9b78a58d75a3e6609
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
lockylocky_osiristroldeshdefense_evasiondiscoveryevasionexecutionimpactpersistenceprivilege_escalationransomwarespywarestealertrojanupx

Malware Config

Targets

    • Target
      RNSM00274.7z
    • Size 7.2MB
    • SHA256 1149ed9ea9f52479ac6b28f048afbea32353e7a5c28030a9b78a58d75a3e6609
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    lockylocky_osiristroldeshdefense_evasiondiscoveryevasionexecutionimpactpersistenceprivilege_escalationransomwarespywarestealertrojanupx

    • Locky

      Ransomware strain released in 2016, with advanced features like anti-analysis.

      ransomwarelocky

    • Locky (Osiris variant)

      Variant of the Locky ransomware seen in the wild since early 2017.

      ransomwarelocky_osiris

    • Locky family

      locky

    • Locky_osiris family

      locky_osiris

    • Modifies WinLogon for persistence

      persistence

    • Troldesh family

      troldesh

    • Troldesh, Shade, Encoder.858

      Troldesh is a ransomware spread by malspam.

      ransomwaretrojantroldesh

    • UAC bypass

      evasiontrojan

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Contacts a large (533) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

      discovery

    • Disables RegEdit via registry modification

      evasion

    • Disables cmd.exe use via registry modification

      evasion

    • Modifies Windows Firewall

      evasion

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

      defense_evasion

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Sets desktop wallpaper using registry

      ransomware

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

2
T1562

Disable or Modify System Firewall

1
T1562.004

Disable or Modify Tools

1
T1562.001

Indicator Removal

2
T1070

File Deletion

2
T1070.004

Modify Registry

7
T1112

Subvert Trust Controls

2
T1553

Install Root Certificate

1
T1553.004

SIP and Trust Provider Hijacking

1
T1553.003

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Network Service Discovery

1
T1046

Peripheral Device Discovery

1
T1120

Query Registry

3
T1012

System Information Discovery

7
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

1
T1490

Tasks