PDF malware analysis — malicious · 2c725b100eb119f3

MALICIOUS

PDF

36.1 KB Created: 2021-07-03 22:15:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: d98906f9b0fdd50c03f0bf104400b4b3 SHA-1: ac6d887781a2a47fa457764f19630f6887db811a SHA-256: 2c725b100eb119f3407b136158a686c5ab1e4bb1c7c5b4e4488c8528bc46b406

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a critical heuristic firing for a malicious redirector link, specifically advertising a 'game hack' lure. The document body also contains the same URL, reinforcing its role as the primary lure. This suggests the document is designed to trick users into visiting malicious sites, likely to download further malware or engage in phishing.

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/archery-master-3d-hack-unlimited-coins-cheats-game-hack In PDF document text
- https://steelfurniture.vn/public/upload/files/how-to-get-free-cosmetics-in-roblox_GM431946152.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/how-to-get-bc-on-roblox-for-free-2021_GM431946152.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/free-robux-giveaway_GM431946152.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/robux-free-com_GM431946152.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/roblox-hack-app_GM431946152.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/free-robux-easy_GM431946152.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/how-to-get-free-robux-no-offers-or-human-verification_GM431946152.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/hack-minecraft_GM479516143.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/hackear-contraseas-de-roblox_GM431946152.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/download-apps-for-robux_GM431946152.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/minecraft-windows-10-key-free_GM479516143.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/coin-master-free-bonus_GM406889139.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/comment-hack-roblox-unboxing-simulator_GM431946152.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
- https://steelfurniture.vn/public/upload/files/roblox-free-giftcard-codes_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_off00003303.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3303	23232 bytes
SHA-256: `6961db1d023c828fb6f40d7c3c3f2f763c21109758ae923c1129357b087c2bc7`
`font_01_sfnt_off0000677c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x677C	19384 bytes
SHA-256: `6d80dce4fa699b9076a8b175d16ed475ccfb6ff0dc0169280df9c553a7f08f53`

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