PDF malware analysis — malicious · 236b9833aebcb112

MALICIOUS

PDF

33.9 KB Created: 2021-07-06 19:07:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: a7291e6c40be7149e38d5a069867b253 SHA-1: 7837de7d4343ca588c80798382b999985a471c8b SHA-256: 236b9833aebcb112e288bb65440c0fee1428944e8fdbe86d381900b2584ec632

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a 'download button' lure, directing users to websites promising free in-game currency for popular games like Roblox and Coin Master. The heuristic firings indicate a link farm and a high probability of malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to potentially malicious or scam-related content.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/431946152/get-free-robux-info-game-hack
- http://ebook.itn.ac.id/repository/hack-game-plus-com-coin-master_GM406889139.pdf
- http://ebook.itn.ac.id/repository/roblox-jojo-cheat-engine_GM431946152.pdf
- http://ebook.itn.ac.id/repository/complete-offers-for-robux_GM431946152.pdf
- http://ebook.itn.ac.id/repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdf
- http://ebook.itn.ac.id/repository/free-robux-that-actually-works_GM431946152.pdf
- http://ebook.itn.ac.id/repository/how-to-get-free-roblox_GM431946152.pdf
- http://ebook.itn.ac.id/repository/como-generar-coin-master-free-spins_GM406889139.pdf
- http://ebook.itn.ac.id/repository/free-daily-spins-coin-master_GM406889139.pdf
- http://ebook.itn.ac.id/repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdf
- http://ebook.itn.ac.id/repository/como-crear-hacks-para-roblox_GM431946152.pdf
- http://ebook.itn.ac.id/repository/roblox-free-items-promo-codes-2021_GM431946152.pdf
- http://ebook.itn.ac.id/repository/cute-free-roblox-clothes_GM431946152.pdf
- http://ebook.itn.ac.id/repository/roblox-cheats-unkwown-cheats_GM431946152.pdf
- http://ebook.itn.ac.id/repository/claim-free-spins-coin-master_GM406889139.pdf
- http://ebook.itn.ac.id/repository/free-robux-no-verification-or-survey-2021_GM431946152.pdf
- http://ebook.itn.ac.id/repository/comment-installer-des-cheat-pvp-sur-roblox_GM431946152.pdf
- http://ebook.itn.ac.id/repository/free-robux-net_GM431946152.pdf
- http://ebook.itn.ac.id/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdf
- http://ebook.itn.ac.id/repository/unknown-cheats-roblox-speed-hack_GM431946152.pdf
- http://ebook.itn.ac.id/repository/hacked-roblox-game_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00002e14.bin` `57647003c4a561efaeb1ff2b3ff1bbc1712d39855d31104ae230d41a83a54901`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E14	22412 bytes
`font_01_sfnt_off00006037.bin` `8535eaa3a36812cf4d83c53ed5505d1914af83630ad42aec0f482fa3bbee313b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6037	18820 bytes

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