PDF malware analysis — malicious · 29ce66b8c2c50d04

MALICIOUS

PDF

35.1 KB Created: 2021-07-04 09:57:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 2d416f061b917cfeb59e94ccdfa7f2d7 SHA-1: ca6a929e4a9f101522e16c1cd480c2c5280947e4 SHA-256: 29ce66b8c2c50d0497a49abb8de087c7a81def90ef399f0a254b9052fdff82ee

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including one identified as a lure for game hacks and generators. The presence of these links, combined with the ML classifier flagging the PDF as malicious, strongly suggests a phishing or scam attempt. No scripts were extracted from this sample, but the document's structure and embedded URLs indicate a redirection to potentially malicious sites.

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/roblox-games-to-play-for-free-game-hack PDF link annotation
- https://linhkien247.vn/public/upload/files/free-robux-instantly_GM431946152.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/free-minecraft-printables_GM479516143.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/how-to-hack-peoples-robux-in-roblox_GM431946152.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/how-to-get-free-robux-2021-website_GM431946152.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/free-robux-3-pastbincom_GM431946152.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/how-to-get-free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/roblox-com-free-play_GM431946152.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/hacker-de-roblox-descargar_GM431946152.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/youtube-roblox-get-free-robux_GM431946152.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/coin-master-hacks-xyz_GM406889139.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/roblox-free-jeff-the-killer-cape_GM431946152.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/how-do-yu-hack-big-brother-in-roblox_GM431946152.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/demon-roblox_GM431946152.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/how-to-get-hacks-for-roblox-fallen_GM431946152.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/how-often-pubg-uc-advance_GM1330123889.pdfIn PDF document text
- https://linhkien247.vn/public/upload/files/coin-master-hack_GM406889139.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_off0000304d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x304D	22892 bytes
SHA-256: `6ae60a4417bade55a0851eca33268354973a79f2e9bd19fd2bcb32db2ad84fa8`
`font_01_sfnt_off000063dc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63DC	19244 bytes
SHA-256: `a82be5b5343ca8d3a33473f1eeb2fa03f79ce6a168b6328d177a0c05b35390bb`

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