PDF malware analysis — malicious · 11d75fa8bbc471b7

MALICIOUS

PDF

42.0 KB Created: 2021-05-16 20:35:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 8431549ae8bfdb591b678c7576b93201 SHA-1: 6bf15a16577bebafac38ae312ef8406ffcd2bc68 SHA-256: 11d75fa8bbc471b711bd64e0c922492d5a365a7af4c752af8649bd6f83c8068a

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/coin-master-levels-game-hack PDF link annotation
- http://aviaprofsoyuz.info/images/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/earnrobux_GM431946152.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/coin-master-free-spins-and-chips_GM406889139.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/coin-master-free-400-spin-link_GM406889139.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/rblx-city-free-robux_GM431946152.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/how-to-get-free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/coin-master-hack-2021-no-human-verification_GM406889139.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/free-minecraft-alts_GM479516143.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/coin-master-hack-spin_GM406889139.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/free-robux-just-click_GM431946152.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/get-free-robux-info_GM431946152.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/free-roblox-clothes-and-hair_GM431946152.pdfIn PDF document text
- http://aviaprofsoyuz.info/images/coin-master-spin-hack_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_003_off00004830.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4830	25496 bytes
SHA-256: `bce70c597587001e1b441c453cb9f6da51734912399e8eb29d6e17fbf6c46971`
`font_01_sfnt_off0000834f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x834F	17732 bytes
SHA-256: `ece869c08c97b9ee594c748b621902d10deb759bd9c2ff9e8d3e4156f530a3e8`

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