PDF malware analysis — malicious · 5fc931cad00ee016

MALICIOUS

PDF

46.2 KB Created: 2021-06-03 15:51:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: f59f563f5ea7ea437552b8c3d1f96793 SHA-1: 3b442c0dae1dcc595196364ca3e34f4184633707 SHA-256: 5fc931cad00ee016070b34d7cef0cd6697547a674731d6eb3bcdf6f3c59d8d5d

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic indicating it links to a game hack lure, specifically targeting Roblox Jailbreak. The embedded URL, https://netcdn.online/app/431946152/roblox-jailbreak-hack-game-hack, is the primary indicator of this malicious intent. While no scripts were directly extracted, the PDF structure and the nature of the lure suggest it's designed to redirect users to a potentially malicious site for exploitation.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.online/app/431946152/roblox-jailbreak-hack-game-hack PDF link annotation
- https://www.jcn.co.uk/uploads/files/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/get-more-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/pubg-mobile-uc-qatar_GM1330123889.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-homepage_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/roblox-gift-card-free-codes_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/minecraft-java-free-download_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-accounts_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-latest-mod-apk-free-download_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/robux-generator-2021_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/best-hack-for-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/robux-no-human-verification_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
`stream_004_off0000501c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x501C	28220 bytes
SHA-256: `0a752b0989043c4b8ddd7d5deb8fc25017993f9635a3f19d8930fa508dad1665`
`font_01_sfnt_off00009168.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9168	18468 bytes
SHA-256: `deecbf3382f29be7f744c5f376599cf902ae77510bc823f5987ac0412c139863`

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