Overview

overview

7

Static

static

1

OperaInstaller.exe

windows10-2004-x64

6

OperaInstaller.exe

windows11-ltsc_2024-x64

7

Sharing

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General

  • Target
    OperaInstaller.exe
  • Size 178KB
  • Sample260930-ltd85avsgt
  • SHA256 20b545c7b0b0cb56926972b7fc2a94f428b7aa3e4f9f4e65d1bd0ad800fb60b7
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
adwaredefense_evasiondiscoverypersistenceprivilege_escalationspywarestealer

Malware Config

Targets

    • Target
      OperaInstaller.exe
    • Size 178KB
    • SHA256 20b545c7b0b0cb56926972b7fc2a94f428b7aa3e4f9f4e65d1bd0ad800fb60b7
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    7/10
    discoveryspywarestealeradwaredefense_evasionpersistenceprivilege_escalation

    • Writes a Windows system DLL name to a user directory

      A module named after a system DLL outside System32 can be loaded instead of the real one by a program searching that directory.

      defense_evasion

    • Adds Run key to start application

      persistence

    • Downloads MZ/PE file

    • Enumerates connected drives

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

      persistenceprivilege_escalation
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

Component Object Model Hijacking

1
T1546.015

Hijack Execution Flow

1
T1574

DLL Search Order Hijacking

1
T1574.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Event Triggered Execution

1
T1546

Component Object Model Hijacking

1
T1546.015

Hijack Execution Flow

1
T1574

DLL Search Order Hijacking

1
T1574.001

Defense Evasion

Hijack Execution Flow

1
T1574

DLL Search Order Hijacking

1
T1574.001

Masquerading

1
T1036

Match Legitimate Name or Location

1
T1036.005

Modify Registry

2
T1112

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

Peripheral Device Discovery

1
T1120

Query Registry

6
T1012

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

System Time Discovery

1
T1124

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks