PDF malware analysis — malicious · d6f5104556965e16

MALICIOUS

PDF

36.1 KB Created: 2021-06-29 06:02:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: fb1c93f5d4293cc4f4ca056c70975563 SHA-1: 2de3f1f7bdd182eac48156d05fe9f1bd5ef90aca SHA-256: d6f5104556965e168831b1100e9c2d1af52ab6e4d573c19aab4b52d8ff049512

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to a known malicious redirector infrastructure, specifically designed to lure users with promises of free game currency or hacks. The document body and heuristic firings confirm the intent is to redirect users to potentially malicious sites, likely for further exploitation or phishing. No scripts were extracted from this sample.

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.co/app/431946152/how-to-get-free-robux-hack-2021-no-verification-game-hack In PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/free-coin-master-links_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/robux-earner_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/coin-master-hack-link_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/roblox-free-robux_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/coin-master-gold-cards-free-2021_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/how-to-hack-coin-master-game-2021_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/how-to-hack-coin-master-computer_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/today-coin-master-spin-free_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/roblox-executor-free_GM431946152.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/coin-master-online-hack-no-survey-no-password_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/coin-master-game-hunters-club_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/coin-master-online_GM406889139.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/minecraft-windows-10-key-free_GM479516143.pdfIn PDF document text
- http://mobtakerancell.ir/assets/uploads/pages/files/hack-coin-master-343-apk_GM406889139.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_off00003340.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3340	22660 bytes
SHA-256: `cefdba88aff76cc2bfa9075e85fbb8cea2548d83e7f699072a1fb7fed8ec1518`
`font_01_sfnt_off000065e7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65E7	19812 bytes
SHA-256: `bcafda33d413d9758192c18a1fb2ab3f2a2efeaa75294de958eabdf071330a8d`

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