PDF malware analysis — malicious · 91c9be7c8dae7681

MALICIOUS

PDF

47.4 KB Created: 2021-05-17 14:01:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 0555810011ee040352081afcc40f5c7d SHA-1: 1e16ad4c8be355e8bc2661eb891a4e9dd39b9a45 SHA-256: 91c9be7c8dae7681dd2a0e298f4a685e2cd048923f7d72ecfa01afdcde844be9

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are structured as SEO-optimized PDF links related to game hacks and cheats. The document body also contains a URL pointing to a 'roblox-login-hack-game-hack' page. This suggests the document is part of a phishing or scam campaign designed to lure users to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9013

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 https://netcdn.xyz/app/431946152/roblox-login-hack-game-hack PDF link annotation
- https://www.imagevideo.info/images/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
- https://www.imagevideo.info/images/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/martian-lettuce-coin-master-free_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/coin-master-generator-free_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/coin-master-free-gold_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/bux-free-robux_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
- https://www.imagevideo.info/images/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://www.imagevideo.info/images/free-spins-coin-master-2021-hack_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/free-coins-app-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.imagevideo.info/images/minecraft-servers-that-allow-hacks_GM479516143.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_off0000483d.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x483D	26540 bytes
SHA-256: `f9f9a1d00f9dd45a8ccd5f1b09dc607d86604142bc3c2c141962790eda9c5e9e`
`font_01_sfnt_off00008419.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8419	7448 bytes
SHA-256: `a76ff9b4805dcff342f7268a16e2e3c2ff2b31b96c381fe4deb6ceea777bce90`
`font_02_sfnt_off000095fc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x95FC	18592 bytes
SHA-256: `4594c9d52aa6913ba89b547defae6e50b5d648d55ef93ab0faf484389542556d`

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