PDF malware analysis — malicious · 31a56182bbaa65f9

MALICIOUS

PDF

44.2 KB Created: 2021-06-04 03:52:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: dc4c2836a7c6bafb93700b2d4266b3a2 SHA-1: f0dab187e0d4fed0553d8e2e0b9f954bf2b76601 SHA-256: 31a56182bbaa65f9ec0e4a24fb2030ba3cefa6ee7166fcc0c802d0d28ae46eb6

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links and a call-to-action phrase, strongly suggesting a lure to download potentially malicious content. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, likely for SEO manipulation to promote scam pages. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/coin-master-apk-hack-35-8-game-hack
- http://pustaka1.unindra.id/repository/roblox-help-free-robux_GM431946152.pdf
- http://pustaka1.unindra.id/repository/master-coin-free-spin-daily_GM406889139.pdf
- http://pustaka1.unindra.id/repository/robux-games_GM431946152.pdf
- http://pustaka1.unindra.id/repository/free-spin-app-coin-master_GM406889139.pdf
- http://pustaka1.unindra.id/repository/roblox-arsenal-hack-script-pastebin_GM431946152.pdf
- http://pustaka1.unindra.id/repository/free-robux-no-human-verification-2021_GM431946152.pdf
- http://pustaka1.unindra.id/repository/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdf
- http://pustaka1.unindra.id/repository/coin-master-free-spin-today_GM406889139.pdf
- http://pustaka1.unindra.id/repository/how-to-get-free-robux-inspect_GM431946152.pdf
- http://pustaka1.unindra.id/repository/coin-master-hack-download-2021_GM406889139.pdf
- http://pustaka1.unindra.id/repository/coin-spin-link_GM406889139.pdf
- http://pustaka1.unindra.id/repository/free-robux-no-human-verification-generator_GM431946152.pdf
- http://pustaka1.unindra.id/repository/free-roblox-clothes-for-your-avatar_GM431946152.pdf
- http://pustaka1.unindra.id/repository/tiktok-free-real-followers_GM835599320.pdf
- http://pustaka1.unindra.id/repository/free-spin-coin-master-2021-link_GM406889139.pdf
- http://pustaka1.unindra.id/repository/free-coins-coin-master-hack_GM406889139.pdf
- http://pustaka1.unindra.id/repository/hack-coin-master-apk-358_GM406889139.pdf
- http://pustaka1.unindra.id/repository/free-games-like-coin-master_GM406889139.pdf
- http://pustaka1.unindra.id/repository/earn-free-robux-today_GM431946152.pdf
- http://pustaka1.unindra.id/repository/coin-master-twitter-free-spins_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00005201.bin` `7396dbddce3a6e79968afeff15a82a3845558dd21bfea53986510e1f02663b1b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5201	24840 bytes
`font_01_sfnt_off00008978.bin` `4c8d04635ee7aab9f040781324f23cd99e69f5aee42c948ed1ea0c23ee45676b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8978	18412 bytes

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