PDF malware analysis — malicious · e78f925217858916

MALICIOUS

PDF

33.8 KB Created: 2021-07-05 03:28:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22

MD5: dc6a32a9e84b3c3cf87d849ab23610a9 SHA-1: 3268edde6c45ebd89b1f9dea26022b25b42142ac SHA-256: e78f9252178589166dd5d923463c8f2236e3cb13d3477d3e80680552a729ac3a

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/835599320/how-to-get-free-tiktok-followers-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/roblox-free-robux-android_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/infinite-jump-hack-roblox-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-mineverse-cheats_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-commands_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-vehicle-simulator-money-miles-hack_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-unban-from-polyguns-roblox-free-script-pastebin_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-hack-gui-download_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-steal-a-roblox-account-with-hacks_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-paintball-level-hack-cheat-engine_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/hacking-system-for-clothes-on-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/easy-robux-today-com_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/hack-roblox-info_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-free-stuff-links_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-roblox-accounts-whit-gamepasses_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
`font_00_sfnt_off00003032.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3032	22276 bytes
SHA-256: `8472888b328cd5c0965350eb0fcb111836368ec741d6f7374541d059e95356c8`
`font_01_sfnt_off00006175.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6175	18208 bytes
SHA-256: `09333e2eba8ec0c2d0c0d5a43570c84247037a5e5bf873a02f73287e19852e5b`

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