PDF malware analysis — malicious · 0f141bec97eaa757

MALICIOUS

PDF

33.9 KB Created: 2021-07-10 00:45:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: f0ffcdc8c5faa7f7b79dc5d8efe2e734 SHA-1: b92f74f37785e106d27136f5c08d2ccb51bd7eb7 SHA-256: 0f141bec97eaa757a07e57b3a025298bf23874ed0749d1a568a2b37b8862e9ae

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 0.9980

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/479516143/play-minecraft-online-free-game-hack PDF link annotation
- https://www.toyogas.com.tw/upload/files/how-to-make-robux_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/how-to-get-free-robux-2021-not-fake_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/roblox-cheat-xbox-one_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/hacks-para-prison-life-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/how-to-hack-money-on-any-roblox-game_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/how-to-hack-robux-using-cheat-engine-64_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/113-hacked-client_GM479516143.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/cheat-roblox-shark-bite_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-characters-without-robux-2021_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/hack-a-roblox-game-with-copylock_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/get-free-hat-in-roblox_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-links-coin-master_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/just-go-to-mobi-hack-robloxhack_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_off00002fb5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FB5	22684 bytes
SHA-256: `ce2862e96e9034dc2fff80d970825722d68b2cc57167389dd9320dc120120fd2`
`font_01_sfnt_off00006226.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6226	18264 bytes
SHA-256: `6af20249b3fc91c6ba778d93b5b7f70c4b9d84eb0b0988d9fc165060c8c986e2`

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