PDF malware analysis — malicious · 0f9176259921f579

MALICIOUS

PDF

34.0 KB Created: 2021-07-06 09:30:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: b5e50c64eaa50c3226b51a6ce5814a1d SHA-1: 0ef5eab2e55ec78ebab0e5b716645af3714d6edb SHA-256: 0f9176259921f579bea0419e07f47c93ba18f9d09fd1bced712a69f4f9246162

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a high-risk heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body also explicitly contains the same URL, reinforcing the lure. This suggests the PDF is designed to trick users into visiting a malicious site, likely for malware distribution or phishing.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/online-coin-master-hack-here-game-hack PDF link annotation
- https://www.advancisveterinary.com/uploads/files/files/how-to-get-free-coins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/roblox-cheatus-limited_GM431946152.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/roblox-free-clothes-no-bc_GM431946152.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/minecraft-hack-app_GM479516143.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/hack-roblox-without-gameguardian_GM431946152.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/100-real-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/how-to-get-free-hair-on-roblox_GM431946152.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/coin-master-free-spins--coins-2021_GM406889139.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/descargar-roblox-hack-robux-pc_GM431946152.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/hacks-robux-roblox_GM431946152.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/free-coin-master-hacks_GM406889139.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
- https://www.advancisveterinary.com/uploads/files/files/how-to-get-magma-fiend-in-roblox-for-free_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_002_off00003178.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3178	22192 bytes
SHA-256: `bea20a969b4434cda239a69e717a7aee997ca4ea0c1368f83cdcc75d9f1b902e`
`font_01_sfnt_off000062d4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62D4	18080 bytes
SHA-256: `9b8e948b254d81f42744a3713bd5e57e94ce20b378f0589ec816b2d02d355b2b`

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