PDF malware analysis — malicious · 7b7f36c488777a7b

MALICIOUS

PDF

44.9 KB Created: 2021-06-10 23:22:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22

MD5: d78eaceec259ada11385963804a2dc86 SHA-1: 3e7e5e893ad2b3c69119b71712674efcd40baedf SHA-256: 7b7f36c488777a7b8f4f6f2fa2cf50ccefe50d485e27d8f059d1580e71c7f78c

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 0.9865

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.tw/app/431946152/roblox-jailbreak-money-hack-deutsch-game-hack PDF link annotation
- https://lesegais.ru/images/coin-master-card-hack-2021_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/new-hack-roblox_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-free-spin-and-coin-link-app_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-golden-cards-hack_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/fort-wars-roblox-hack_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/coin-master-game-hack-online_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/how-to-get-free-robux-no-survey-no-offers_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/free-robux-place_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
- https://lesegais.ru/images/como-conseguir-robux-gratis-en-roblox-2021-hack_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/how-to-hack-coin-master-ios-jailbreak_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/claim-gg-free-robux_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
- https://lesegais.ru/images/download-coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
- https://lesegais.ru/images/earn-free-robux_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_004_off0000505b.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x505B	25000 bytes
SHA-256: `502c49a23cc1525a56d3082633ceed80e211de968612dd562551fdd7e5ab1b1d`
`font_01_sfnt_off000089b1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89B1	19424 bytes
SHA-256: `3ec89bb71e220071942ebbe79dd27e391af033d58de3417857d26b08a99063d6`

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