PDF malware analysis — malicious · 755630bb61da2e7e

MALICIOUS

PDF

47.3 KB Created: 2021-06-03 06:05:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: a62539e36076f5b584159e095e5ae677 SHA-1: f9ba73c151b92df9d95e9ce5d64dc8fb138fffc7 SHA-256: 755630bb61da2e7ea58521cb8ee593e47a490124e032d0d6a51ee23eb992c839

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, including one identified as a malicious redirector pointing to 'robux-free-gift-card-org-hack-game-hack'. This lure is designed to trick users into visiting potentially harmful websites, likely for credential harvesting or further malware distribution. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9832

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 https://netcdn.online/app/431946152/robux-free-gift-card-org-hack-game-hack In PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/coin-master-hack-com_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/free-robux-glitch_GM431946152.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/coin-master-reward-link_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/get-free-coin-master_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/robux-free-robux_GM431946152.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/coin-master-download-hack-ios_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/free-daily-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/how-many-levels-does-coin-master-have_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/real-robux-generator_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
`font_00_sfnt_off000052b2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x52B2	28736 bytes
SHA-256: `72f69e67dfae1ed082c7e07d52fff6187bf224847194f3c84d29f7c5af866a18`
`font_01_sfnt_off000093f4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x93F4	19096 bytes
SHA-256: `bb2bfd1b5c80cb1744cd57562806e4410c1e72fb9e1ed3dff7cfd9b3dcead9ac`

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