PDF malware analysis — malicious · bffa3d76629cdecb

MALICIOUS

PDF

44.9 KB Created: 2021-05-13 08:33:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: e55d9aafdf90d50eadf2af9d8686a177 SHA-1: 0b9ba5b6989fc8f78f8ea125a450b4ce84f8ef3d SHA-256: bffa3d76629cdecb1ccab71013f6f588cf457693d1d580b5d713bdb6c87bf924

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure related to "free Robux" and "game hacks" to entice users to click on a malicious URL. The primary heuristic, PDF_GAME_HACK_REDIRECT_LURE, indicates that the PDF links to a redirector designed for such scams. The embedded URL, https://netcdn.xyz/app/431946152/how-to-get-free-robux-2021-easy-game-hack, is the most prominent IOC, likely leading to a further malicious download or phishing page. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

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/431946152/how-to-get-free-robux-2021-easy-game-hack PDF link annotation
- http://5prudov.ru/images/best-hack-for-coin-master-2021_GM406889139.pdfIn PDF document text
- http://5prudov.ru/images/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
- http://5prudov.ru/images/was-minecraft-ever-free_GM479516143.pdfIn PDF document text
- http://5prudov.ru/images/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
- http://5prudov.ru/images/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
- http://5prudov.ru/images/free-robux-website_GM431946152.pdfIn PDF document text
- http://5prudov.ru/images/how-to-get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
- http://5prudov.ru/images/best-hacked-client_GM479516143.pdfIn PDF document text
- http://5prudov.ru/images/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
- http://5prudov.ru/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
- http://5prudov.ru/images/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
- http://5prudov.ru/images/roebucks-on-roblox_GM431946152.pdfIn PDF document text
- http://5prudov.ru/images/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
- http://5prudov.ru/images/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
- http://5prudov.ru/images/roblox-fly-hack_GM431946152.pdfIn PDF document text
- http://5prudov.ru/images/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
- http://5prudov.ru/images/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
- http://5prudov.ru/images/roblox-free-exploits_GM431946152.pdfIn PDF document text
- http://5prudov.ru/images/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
- http://5prudov.ru/images/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000046c4.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x46C4	24860 bytes
SHA-256: `eaf6dafe45e4c0168d46151755362563f3e38365e52c15c02dee38b3c7f1cc89`
`font_01_sfnt_off00008031.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8031	2912 bytes
SHA-256: `02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f`
`font_02_sfnt_off00008a2d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A2D	19092 bytes
SHA-256: `cc4041fc50bd2ea9a1268967e32916156e3a634973a216864dd7f220ceb04504`

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