PDF malware analysis — malicious · 3e6ff539a654b0e4

MALICIOUS

PDF

34.2 KB Created: 2021-06-18 06:24:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: b6174490f78d7e11e95a8025ff88055e SHA-1: 311e9539e0631db99640403a7a3d7f29723ef277 SHA-256: 3e6ff539a654b0e47e10a9a7af0a0296edf8683a62a39d6e408c835cfae0e780

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.co/app/431946152/how-2-hack-roblox-for-robux-game-hack PDF link annotation
- http://apartmani-mestrovic-krk.hr/files/free-robux-now-hol_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/coin-master-free-spins-link-2021-twitter_GM406889139.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/mcpe-hacks_GM479516143.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/easy-robux-com_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/minecraft-ios-mods_GM479516143.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/hack-coin-master-apk-32_GM406889139.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/roblox-esp-hack_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/free-robux-and-bc-roblox_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/coin-master-facebook-hack_GM406889139.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/guess-the-character-roblox-free-robux-answers_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/hack-icebreak-roblox_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/e-free-roblox_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/free-roebucks-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/robotinc-roblox-hack_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/roblox-no-download-hack_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/coin-master-free-spins-daily-link-game-mod_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
`font_00_sfnt_off00002e54.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E54	22276 bytes
SHA-256: `ccdc9bd26f9e113ca32cfa65320c6a8975447b38fec55932ab7c02d33d784e8e`
`font_01_sfnt_off00005fc4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FC4	19248 bytes
SHA-256: `5f6d097905e6ec28337501bea0810548f7ab738f6e238afdbddb5f7bc77b0b0d`

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