PDF malware analysis — malicious · cbbb40768df8f4be

MALICIOUS

PDF

47.1 KB Created: 2021-06-03 11:58:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 2e984b3c6c3d747bd79a524c74d50c9b SHA-1: a142f663c03e952416ba1dedeb3ea76c88201695 SHA-256: cbbb40768df8f4beeeeed696c83a94e196f079249ca50129b332807a486aab3a

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file contains a lure for a 'free generator / game hack' related to Minecraft, directing users to a suspicious URL. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to redirect users to a malicious site, likely for malware distribution or phishing. The ML classifier also flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9832

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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
External URI info PDF_URI

PDF contains an external URL action
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/479516143/minecraft-mojang-free-game-hack PDF link annotation
- https://www.insol-europe.org/uploads/files/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-hack-online-generator-without-human-verification_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-iphone-free_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/mcpe_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/freespinandcoinblogspot-com-2021-11-coinmasterfreespins_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-roblox-codes-2021_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/rbxcity-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/claim-free-robux-button_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-discord_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-gen_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/300-daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/fb-coin-master_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-free-spins-and-coins-app_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
`stream_004_off0000545e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x545E	31844 bytes
SHA-256: `b99db074a371f0339e9f67699f8d01330226f80272e7cbb58d1d9e9a83885a5b`
`font_01_sfnt_off00009604.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9604	18188 bytes
SHA-256: `b5f50bf57dfccd752109e4182842bacf3724a00f1b96a34c084e43a5ee255f71`

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