PDF malware analysis — malicious · 751663dda397e89c

MALICIOUS

PDF

41.8 KB Created: 2021-05-13 12:15:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 72bf73d15d7318928af7606b31d5512f SHA-1: 1874ffedfe7a37d181eebb1b871a46a27c8540fb SHA-256: 751663dda397e89c7bc45c535a344b4ec9b1081b8f6cf88724607762c03dca6f

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 0.9971

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.xyz/app/406889139/como-hack-coin-master-game-hack PDF link annotation
- https://www.stileadda.com/uploaded_files/userfiles/files/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/roblox-rewards-site_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/coin-master-hacked-apk-download-for-android_GM406889139.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/free-robux-codes-2021-real_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/free-robux-mobile_GM431946152.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-haktuts_GM406889139.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/free-spin-links-coin-master-october-30-2021_GM406889139.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
- https://www.stileadda.com/uploaded_files/userfiles/files/coin-master-free-spin-and-coin-links_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_003_off0000498d.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x498D	24784 bytes
SHA-256: `083565978725e093f556fd7a80491ffc0511054466c0ae084cb777d1433b51a1`
`font_01_sfnt_off000081f9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x81F9	17976 bytes
SHA-256: `eca04fc04629eb008e0887f2535dd17ec15003b382c7de749ac8db6c10868975`

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