PDF malware analysis — malicious · a41dea279d8d19ab

MALICIOUS

PDF

48.2 KB Created: 2021-06-11 13:25:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: b67e127e07d0e4ca07fad457e24c750e SHA-1: 22806122223bb5c22d91bfd58ccac5c1be6ac386 SHA-256: a41dea279d8d19ab4c55bda86a320a78fac7105b267156d4c3abb5fdbdd2beb4

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 0.9796

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/galactic-adidas-shirt-roblox-free-game-hack PDF link annotation
- http://lawpatron.ru/images/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
- http://lawpatron.ru/images/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/coin-master-free-spins-may-11-2021_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/free-robux-script_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/how-to-save-art-on-free-draw-2-roblox_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/how-to-get-free-robux-2021-videos_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/coin-master-free-cards_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
- http://lawpatron.ru/images/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/hack-free-download-roblox_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/roblox-fe-btools-script-hack_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/bleu-roblox-hack-download_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/coin-master-mod-version-free-download_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/free-roblox-hack_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
- http://lawpatron.ru/images/coin-master-exchange-40-free-spins_GM406889139.pdfIn PDF document text
- http://lawpatron.ru/images/roblox-money-cheat-code_GM431946152.pdfIn PDF document text
- https://collectrobux.coIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000053b5.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x53B5	25580 bytes
SHA-256: `3c81579eea3f46cfdab467b6901a51efedc2d3845d6083c1069066fa75e9672a`
`font_01_sfnt_off00008ebd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EBD	2824 bytes
SHA-256: `94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4`
`font_02_sfnt_off0000986c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x986C	18740 bytes
SHA-256: `71c6a6759e26fb17a151452e1d9a06a863ba66aa862397e565c3c6162f81a981`

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