PDF malware analysis — malicious · e5fb3afbc20cdda8

MALICIOUS

PDF

43.5 KB Created: 2021-05-16 23:12:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 7add5a097bb985f5737b081afd18a54a SHA-1: 62289ff0bff9b2d2ed8ca36e5dc19a604193c232 SHA-256: e5fb3afbc20cdda8d5bf8be4659bc1ac29fccd92ccd098d125e2b0d57c3a2aac

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on a link to a "real coin master hack game hack". This lure, combined with heuristics indicating a game hack redirect, strongly suggests a social engineering attempt to trick users into visiting potentially malicious websites. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the presence of embedded URLs and the nature of the lure point towards a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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.xyz/app/406889139/real-coin-master-hack-game-hack PDF link annotation
- https://www.simplenepaltravel.com/userfiles/files/how-to-download-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/free-premium-roblox_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/roblox-hack-site_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/free-coin-spin-daily-link-net_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/freerubux_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/free-draw-2-roblox_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/free-roblox-items-codes_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/coin-master-apk-hack-3527_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- https://www.simplenepaltravel.com/userfiles/files/free-robux-without-verification_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
`stream_003_off00004bdb.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BDB	27708 bytes
SHA-256: `6b63fb611c3897e051cc7e2350563e9435e9a072b7bef3467e798abac6309cbc`
`font_01_sfnt_off00008944.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8944	17788 bytes
SHA-256: `c971b34c329d205054a16b1b5f827a74783bca0f841d374511d085dfea161b8f`

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