PDF malware analysis — malicious · 3e2fa4fce05a159d

MALICIOUS

PDF

34.4 KB Created: 2021-07-20 19:37:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 73cb369972930303b53aeb73d0374ca4 SHA-1: e766b584dbc783f61fac9ed814a3a9ec00a36de9 SHA-256: 3e2fa4fce05a159d491a507d03c1a8d077ed125fb8f7611faa492c5e6078538b

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that lead to a malicious redirector. The document body and heuristics indicate a lure for game hacks and free currency, designed to trick users into clicking malicious links. The primary redirector URL is http://netcdn.tw/app/406889139/free-spins-and-coins-on-coin-master-game-hack, which then likely serves further malicious content, such as the other PDF files found in the extracted URLs.

Machine Learning

Nyx PDF Classifier malicious score 0.9955

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/free-spins-and-coins-on-coin-master-game-hack In PDF document text
- http://livsgnistans.se/images/free-minecraft-server_GM479516143.pdfIn PDF document text
- http://livsgnistans.se/images/robux-free-online_GM431946152.pdfIn PDF document text
- http://livsgnistans.se/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
- http://livsgnistans.se/images/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
- http://livsgnistans.se/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
- http://livsgnistans.se/images/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
- http://livsgnistans.se/images/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
- http://livsgnistans.se/images/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
- http://livsgnistans.se/images/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
- http://livsgnistans.se/images/free-tiktok-followers_GM835599320.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_off00003043.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3043	23476 bytes
SHA-256: `41d6a1b3b1beda318b6baa4c12839fdef092e2a4ededb485636769a453fb9beb`
`font_01_sfnt_off00006515.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6515	18060 bytes
SHA-256: `64690fddacb88a1b87eb78a3bf181b542b813998c8d2539429c7660090ba79fa`

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