PDF malware analysis — malicious · 3007d225ab34dde4

MALICIOUS

PDF

42.5 KB Created: 2021-05-17 18:31:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 63514bf805efa2ec199d40389e16db66 SHA-1: b7a20a5e05473a063873f9e889722f920f03d436 SHA-256: 3007d225ab34dde41d0c9b160c8ddcfd671c38bc7f7d094b32d71b5ccf8561cd

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous external links, many of which are SEO-optimized and point to other PDF files, suggesting a link farm designed to attract users searching for game hacks. The presence of a "Free Spin Coin Master 2021" lure and the ML classifier's high confidence score indicate malicious intent. The document likely serves as a lure to download further malicious content or exploit kits.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/406889139/free-spin-coin-master-2021-game-hack
- https://zszolesno.pl/images/hack-coin-master-apk-ios_GM406889139.pdf
- https://zszolesno.pl/images/coin-master-hack-app-ios-download_GM406889139.pdf
- https://zszolesno.pl/images/coin-master-hack-mod-game-download_GM406889139.pdf
- https://zszolesno.pl/images/moonactive-coin-master-free-spins-link_GM406889139.pdf
- https://zszolesno.pl/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdf
- https://zszolesno.pl/images/roblox-exploit-scripts_GM431946152.pdf
- https://zszolesno.pl/images/are-robux-generators-safe_GM431946152.pdf
- https://zszolesno.pl/images/coin-master-hack-apk-2021-ios_GM406889139.pdf
- https://zszolesno.pl/images/minecraft-windows-10-edition-free-download_GM479516143.pdf
- https://zszolesno.pl/images/free-robux-hack_GM431946152.pdf
- https://zszolesno.pl/images/coin-master-email-free-spins_GM406889139.pdf
- https://zszolesno.pl/images/real-robux-codes_GM431946152.pdf
- https://zszolesno.pl/images/minecraft-pe-hack-client_GM479516143.pdf
- https://zszolesno.pl/images/blox-fish-free-robux_GM431946152.pdf
- https://zszolesno.pl/images/coin-master-free-download-pc_GM406889139.pdf
- https://zszolesno.pl/images/coin-master-free-spins-youthnow_GM406889139.pdf
- https://zszolesno.pl/images/coin-master-daily-free-spins-link-blogspot_GM406889139.pdf
- https://zszolesno.pl/images/roblox-redeem-card-codes-free_GM431946152.pdf
- https://zszolesno.pl/images/coinmasterfree_GM406889139.pdf
- https://zszolesno.pl/images/hacks-for-roblox-prison-life_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004a97.bin` `62731b40060b905485b7b768d5d706401b10a39ada716e0683cb2018c73ab05e`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A97	24988 bytes
`font_01_sfnt_off000083cd.bin` `fd0044dd07fea29fabb02cccaad095bc879ba68536b4dede47c40461e88c70e2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83CD	18288 bytes

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