PDF malware analysis — malicious · 29c866dcf72051d2

MALICIOUS

PDF

35.5 KB Created: 2021-07-08 16:27:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 317fcae38dddd46af0aad1b9115d7d12 SHA-1: 62212d23a663c05a94a54013726dd5d3fa4c4971 SHA-256: 29c866dcf72051d2f6fd264913edba75635d9d4c4b6b734552af42aa617dd1d1

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' lure. The embedded URL http://netcdn.tw/app/406889139/twitter-coin-master-free-spins-game-hack is likely intended to redirect the user to a malicious site or download a payload. While no scripts were explicitly extracted, the PDF format itself can embed JavaScript, and the ML classifier strongly flagged this as malicious, suggesting a sophisticated attack.

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/twitter-coin-master-free-spins-game-hack PDF link annotation
- https://www.cgalgeria-dubai.com/userfiles/files/bux-free-robux_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-tiktok-likes-no-human-verification-or-download_GM835599320.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/is-free-robux-real_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/can-i-have-robux_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/hack-coin-master-apk_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-movie-websites-tiktok_GM835599320.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/pokemon-go-free-raid-pass_GM1094591345.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-fans-on-tiktok_GM835599320.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-robux-promo-codes-2021-october_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/roblox-script-executor-free_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/robuxhub-net_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-free-spons-apk-2021_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_002_off00003376.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3376	23252 bytes
SHA-256: `4d23a5879131b80061661561a69eb722e9f0dce8c550ac4a972d3bbefdbe701f`
`font_01_sfnt_off00006801.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6801	18336 bytes
SHA-256: `ace8529003dd85c0f7dacf2c69051d6549971c35597209070ab220570a697a3f`

Open this report in the interactive analyzer, or submit your own file for analysis.