PDF malware analysis — malicious · 69916913e6990554

MALICIOUS

PDF

35.7 KB Created: 2021-06-19 03:29:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: ce812d87c2c1b3273fb9d120b6870d14 SHA-1: 828a601d9d0ffd6e8be44adc406206ce06759ee4 SHA-256: 69916913e699055485565ebfb02adbf36f05c30345f966bae3160e57fad405c2

76 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links and embedded text that lure users with promises of free game currency (Robux) and hacks. The primary redirector URL, http://netcdn.co/app/431946152/join-the-group-for-free-robux-game-hack, is associated with malicious activity. The document's content and structure strongly suggest it is part of a phishing or scam campaign designed to drive traffic to potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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.
External URI info PDF_URI

PDF contains an external URL action
PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED

The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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/join-the-group-for-free-robux-game-hack PDF link annotation
- http://fishboat.hr/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://fishboat.hr/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
- https://www.fishboat.hr/files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
- https://www.fishboat.hr/files/free-robux-codes_GM431946152.pdfIn PDF document text
- http://fishboat.hr/files/free-roblox-items-codes-2021_GM431946152.pdfIn PDF document text
- http://fishboat.hr/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://www.fishboat.hr/files/free-boombox-roblox_GM431946152.pdfIn PDF document text
- http://fishboat.hr/files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
- https://www.fishboat.hr/files/minecraft-free-version_GM479516143.pdfIn PDF document text
- http://fishboat.hr/files/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.fishboat.hr/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
- https://www.fishboat.hr/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
- http://fishboat.hr/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
- https://www.fishboat.hr/files/get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- http://fishboat.hr/files/free-fire-coin-master_GM406889139.pdfIn PDF document text
- https://www.fishboat.hr/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
- http://fishboat.hr/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.fishboat.hr/files/coin-master-hack-tool_GM406889139.pdfIn PDF document text
- https://www.fishboat.hr/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://www.fishboat.hr/files/best-roblox-hacks_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_off00003247.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3247	23280 bytes
SHA-256: `b0936fbbe99caf8ed8436ea73bc60abbe9bbd86b5954bd57888d432fea60837b`
`font_01_sfnt_off00006693.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6693	19344 bytes
SHA-256: `868a5235e20d21af0180d478deac46e4997750973cf3798724d237ccec0098ff`

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