PDF malware analysis — malicious · 7c26fb802a5fb9ca

MALICIOUS

PDF

34.9 KB Created: 2021-07-09 04:15:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: f82946f702e4dcfb605c6e6b9372bd9f SHA-1: a57e6325ec5a43eb38608576c75abd795ed9c7e1 SHA-256: 7c26fb802a5fb9ca5161ff17dbe73a6097c5e7fdd786f852d6e1f320e1e37a14

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and infrastructure, disguised as offers for game hacks and currency. The primary link, http://netcdn.tw/app/406889139/300-free-spins-coin-master-game-hack, is flagged as malicious. The document's structure and embedded links suggest it is designed to lure users to potentially harmful websites, likely for further exploitation or credential harvesting.

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/406889139/300-free-spins-coin-master-game-hack In PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/unknown-cheat-roblox_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/get-free-robux_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/free-10-codes-for-roblox-no-human-verification_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/kazok-how-to-hacked-roblox-account_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/how-to-cheat-in-roblox-counter-blox_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/hack-para-atravesar-paredes-en-roblox-2021-en-cualquie-juego_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/coin-master-gold-cards-free-2021_GM406889139.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/jump-hack-roblox_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/how-to-get-roblox-free-2021_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/rbxcity-free-robux-instant_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/minecraft-windows-10-edition-hacked-client_GM479516143.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/roblox-farming-simulator-cheats_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
- http://church01.jworld.i-powers.com.tw/webdata/ckfinder/public/userfiles/files/cheats-for-bear-roblox_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_002_off0000327e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x327E	22676 bytes
SHA-256: `624c7de5eb2659c2496ea1861de18463b28877098c0e72a401d0ef5c1f53a008`
`font_01_sfnt_off0000652b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x652B	18520 bytes
SHA-256: `7152d93b7e5e37e9ebec40db19215018c6c4055387bd9feb172697bbfaff0143`

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