Gbhackers

Malvertising Campaign Distributes TamperedChef via Google Ads

First seen 21 Jan 2026, 06:39 UTC • •36.4

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ThreatCluster •March 12, 2026 at 13:27 UTC

A malvertising campaign identified in September 2025 has targeted Windows users by promoting fake PDF editing applications through Google Ads. The malware, known as TamperedChef, has compromised over 100 organizations across 19 countries, stealing browser credentials and establishing backdoor access on infected systems.

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Updated 228d ago How this analysis works

Threat Graph

5 entities, 4 inferred relationships (STIX 2.1).

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Technique (2)

Malware
T1555 - Credentials From Web Browsers

Malware (1)

TamperedChef

Affected Platform (2)

Google Ads
Windows

Relationships

Malware targets Google Ads
Malware targets Windows
T1555 - Credentials From Web Browsers targets Google Ads
T1555 - Credentials From Web Browsers targets Windows

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Malvertising Campaign Distributes TamperedChef via Google Ads

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Extracted Entities (5)

Malware (1)

Attack Types (1)

MITRE ATT&CK (1)

Platforms (2)