PDF malware analysis — malicious · ce65f4e47027a316

MALICIOUS

PDF

35.0 KB Created: 2021-07-07 19:11:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 679865dfa5004b678d0a350900dfb095 SHA-1: 1cdf2ea3aeaf61d21f34f395a288a47cc4184171 SHA-256: ce65f4e47027a316dc59796ead46d24457fc5c0cbbd5541ebbc375362bc74bdc

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/406889139/daily-coin-master-free-link-game-hack PDF link annotation
- https://www.knjigebuducnosti.com/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/how-to-hack-someone-on-roblox-and-steal-theyre-robux_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/hackear-coin-master-sin-verificacion_GM406889139.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/free-robux-master_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/roblox-driveblox-unlimited-money-cheat-engine_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/coin-master-free-spain_GM406889139.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/free-spin-codes-coin-master_GM406889139.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/roblox-account-hacker-tool_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/how-to-have-script-for-hack-on-roblox_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/free-roblox-girl-hair-not-a-model_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/roblox-free-play-no-download-unblocked_GM431946152.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
- https://www.knjigebuducnosti.com/files/roblox-royale-high-diamond-hack_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_off00003266.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3266	22660 bytes
SHA-256: `36cfeb338da0b5ad4042db422f2069080b7a093820685f5406f892384ca9754d`
`font_01_sfnt_off00006540.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6540	18588 bytes
SHA-256: `a699d3a8433e877459e79dc352377539e242d0a0960a9e9ed42abaee04720ef7`

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