PDF malware analysis — malicious · b6f4ed10892c15fc

MALICIOUS

PDF

35.6 KB Created: 2021-07-09 02:50:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 2433b227f8be78cb950d641f6f9ecc95 SHA-1: c8482ee5e1b9804c139af5e7221e11480c3f3c7d SHA-256: b6f4ed10892c15fc3c18637dd34a162db889e33365f6250fe27c4b9beb8d43c9

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free in-game currency to entice users to click on embedded links. The primary link directs to a known malicious redirector infrastructure, suggesting a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a social engineering attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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/406889139/how-to-hack-coin-master-game-game-hack In PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/free-ways-to-make-your-roblox-avatar-small_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/minecraft-free-version_GM479516143.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/roblox-unjailbreak-hack-executor_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/roblox-ipad-cheat-codes_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/roblox-bandit-simulator-hack_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/master-coin-master-free-spin_GM406889139.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/how-to-get-a-free-face-on-roblox-2021_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/cheats-for-roblox-retail-tycoon_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/pubg-uc-number_GM1330123889.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/what-cheats-can-you-do-to-get-robux-fast_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/itzthewy-free-intros-free-robux_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/robux-hack-website_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/get-free-robux-info_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/coin-master-34-4-free-download_GM406889139.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/roblox-wizard-life-hack-site-v3rmillionnet_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/coin-master-free-spin-app-reviews_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
`stream_002_off0000347c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x347C	22916 bytes
SHA-256: `53946d8ce72a81c3cfe3f6e99349fef5e16c345e33019e8ed92af712167c0cbe`
`font_01_sfnt_off000067fb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67FB	18428 bytes
SHA-256: `1b515550e836c22b85926dfb42e46c30c9e7b75c78fcc864c57374ff32ab1983`

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