PDF malware analysis — malicious · 38919ae0201ecdf9

MALICIOUS

PDF

34.5 KB Created: 2021-07-10 01:18:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 91d0437acaa87e329dc5b03add6bd8fc SHA-1: d6460ed4b056606c36e5188fad02c01fdbe608b8 SHA-256: 38919ae0201ecdf99784558e895dc3010cf821071c8d59232cf08f147d07bbc6

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic firing for a 'free generator / game hack' lure, directing users to the URL http://netcdn.tw/app/431946152/free-robux-group-payouts-game-hack. The document body and extracted URLs reinforce this theme, indicating a social engineering attempt to trick users into visiting a potentially malicious site. No scripts were extracted, but the overall pattern suggests a phishing or malware distribution lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://netcdn.tw/app/431946152/free-robux-group-payouts-game-hack PDF link annotation
- https://www.mentalhealthnow.co.uk/uploads/files/files/coin-master-free-spins-ios-2021_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/free-robux-hackget-up-to-22-500-free-robux-today_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/wild-revolvers-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/free-robux-instantly_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/coin-master-free-account_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/cute-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/roblox-free-robux-2021-hack_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/visite-roblox-robux-free_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/hacks-minecraft_GM479516143.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/robloxcom-avatar-free_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/real-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/roblox-parkour-point-hack-scriot_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/robux-free-co_GM431946152.pdfIn PDF document text
- https://www.mentalhealthnow.co.uk/uploads/files/files/free-robux-hack-2021-july_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000307c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x307C	21940 bytes
SHA-256: `dd97e650e8af0cd3b155123ccf5ae73712f913ac35ccedd55766b1d7a627aa3e`
`font_01_sfnt_off000060f8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x60F8	19332 bytes
SHA-256: `037bae83bb889f51f40ee04106dd8c63976853147050f5621b1f1569a1c37875`

Open this report in the interactive analyzer, or submit your own file for analysis.