PDF malware analysis — malicious · 714273743a3ed4e5

MALICIOUS

PDF

34.9 KB Created: 2021-07-09 12:15:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: a0489276217488a841d8dcb96d230012 SHA-1: c8fb0375052b254afdc914b4a1ebc62d29b07714 SHA-256: 714273743a3ed4e532be5e1e33c27a22e780227d809ff0b1c31b8a6df8dbfd1c

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game hacks and currency generators to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts numerous other PDFs with similar deceptive content. The ML classifier strongly indicated maliciousness, and the presence of multiple redirector links reinforces this assessment.

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/coinmaster-blogspot-game-hack In PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/roblox-cheat-money-hack_GM431946152.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/minecraft-online-free-download_GM479516143.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/roblox-sign-in-free_GM431946152.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/minecraft-login-free_GM479516143.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/how-to-get-robux-without-human-verification_GM431946152.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/how-to-get-robux_GM431946152.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/free-admin-pizza-roblox_GM431946152.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/pubg-uc-600-sri-lanka-price_GM1330123889.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/free-minecraft-codes_GM479516143.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/roblox-robux-hack-download-no-survey-2021_GM431946152.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/free-robux-group-payouts_GM431946152.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/free-safe-roblox-exploits_GM431946152.pdfIn PDF document text
- http://www.lorengntb.com/new/public/ckfinder/userfiles/files/how-to-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_off000032e7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32E7	22476 bytes
SHA-256: `410c81f2070de1f73fca3c52fbd182fe382522a524b96437f975ae89e9bd3cdd`
`font_01_sfnt_off00006502.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6502	18560 bytes
SHA-256: `c633d1bdcec2ec97d0cf5d0105340ca0f72dc1a1e70e85eb1730fe196c137425`

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