PDF malware analysis — malicious · 6f0df134f1a1d39c

MALICIOUS

PDF

32.0 KB Created: 2021-07-20 08:40:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: bf1ce07b707b04ec588a6f21c8131637 SHA-1: cba7e5dc9b58c9714da3a0f4f05f7bf0bcd49864 SHA-256: 6f0df134f1a1d39c9e8d230fb5084b274c41c2b8baf80116dbd2b06c3d4881e9

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirector infrastructure, specifically advertising free game currency and hacks. The primary lure URL is http://netcdn.tw/app/431946152/promo-codes-for-free-robux-game-hack, which is associated with a game hack lure. The document body and embedded links reinforce this social engineering tactic, aiming to trick users into visiting potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9900

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/431946152/promo-codes-for-free-robux-game-hack In PDF document text
- https://www.marcopolosydney.com.au/images/free-tiktok-app_GM835599320.pdfIn PDF document text
- https://www.marcopolosydney.com.au/images/roblox-speed-hack_GM431946152.pdfIn PDF document text
- https://www.marcopolosydney.com.au/images/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
- https://www.marcopolosydney.com.au/images/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
- https://www.marcopolosydney.com.au/images/minecraft-fly-hack_GM479516143.pdfIn PDF document text
- https://www.marcopolosydney.com.au/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
- https://www.marcopolosydney.com.au/images/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
- https://www.marcopolosydney.com.au/images/tiktok-free-fans_GM835599320.pdfIn PDF document text
- https://www.marcopolosydney.com.au/images/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
- https://www.marcopolosydney.com.au/images/free-tiktok-likes_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_off0000286f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x286F	22140 bytes
SHA-256: `c08b1d24bb7f022258a610efe0f97bb8e223cfece1a600e6e649ab722352321a`
`font_01_sfnt_off0000599f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x599F	18788 bytes
SHA-256: `98beb3a84a1d0c434f78cf00ff66305f1fe7bf0b06c7810028940a1e6b1ca6de`

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