PDF malware analysis — malicious · de29151de09647b9

MALICIOUS

PDF

33.9 KB Created: 2021-06-29 07:05:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 1dd6b335d4f7d233aad9e2819f0ba7f8 SHA-1: 187db4e3469f9c202569f1448f9b1d135935973a SHA-256: de29151de09647b921eefcb4ce552c09f66720c1415b6379fff8852b5edb96a3

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.co/app/431946152/free-pets-adopt-me-roblox-game-hack PDF link annotation
- https://www.legclub.org/uploads/files/files/free-coins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/free-auto-clicker-for-roblox-pc_GM431946152.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/how-to-get-free-robux-in-games-2021_GM431946152.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/roblox-pinewood-points-hack_GM431946152.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/how-to-unblock-roblox-hack-a-wifi-password_GM431946152.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/free-minecraft-generator_GM479516143.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/minecraft-cracked-client_GM479516143.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/guess-the-emoji-roblox-cheats_GM431946152.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/wurst-hacked-client-112-2_GM479516143.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/free-roblox-mobile-robux-hac_GM431946152.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/bonus-free-day-roblox_GM431946152.pdfIn PDF document text
- https://www.legclub.org/uploads/files/files/how-do-i-get-free-robux-without-doing-anything_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_off00002f4e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F4E	21404 bytes
SHA-256: `6762660f0dd900ec327abdb3d4369e44c950bd30173a3865a5158417fa840be2`
`font_01_sfnt_off00005e3c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E3C	19452 bytes
SHA-256: `3b20b865f513e9b352c17c84e945c814c8dd61964cc41c19de73296c3d2b0278`

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