hxxps://bingwallpaper[.]microsoft[.]com | Triage

Resubmissions

10-01-2025 17:57

250110-wjlkka1nbw 8

10-01-2025 15:16

250110-snhspazrbm 8

Sharing

General

Target

https://bingwallpaper.microsoft.com
Sample

250110-snhspazrbm

Score

8^/10

microsoft defense_evasion discovery persistence phishing ransomware spyware stealer

Malware Config

Targets

- Target
  
  https://bingwallpaper.microsoft.com
Score

8^/10

microsoft defense_evasion discovery persistence phishing ransomware spyware stealer
- Blocklisted process makes network request
- 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.
  spyware stealer
- Adds Run key to start application
  persistence
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Detected potential entity reuse from brand MICROSOFT.
  phishing microsoft
- Sets desktop wallpaper using registry
  ransomware
behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

Subvert Trust Controls

SIP and Trust Provider Hijacking

Credential Access

Credentials from Password Stores

Credentials from Web Browsers

Unsecured Credentials

Credentials In Files

Discovery

Browser Information Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

System Location Discovery

System Language Discovery

System Network Configuration Discovery

Internet Connection Discovery

Lateral Movement

Collection

Data from Local System

Command and Control

Exfiltration

Impact

Defacement

Tasks

static1

urlscan1

behavioral1

microsoftdefense_evasiondiscoverypersistencephishingransomwarespywarestealer