PDF malware analysis — malicious · 43e0388a6e7171d0

MALICIOUS

PDF

42.0 KB Created: 2021-05-12 14:15:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 302a0e19d05db18c776fd8fd1271295a SHA-1: 8c07125716a1beef3a48b3d5623d878879f20c74 SHA-256: 43e0388a6e7171d05a0048d67070cd2729ae206c0a555fdbc315f028ebb85f63

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, identified as a link farm, pointing to various game-related topics. The presence of a "Download" button lure and the ML classifier's high confidence score indicate malicious intent. The document likely serves as a lure to drive traffic to these external sites, which may host further malicious content or phishing attempts.

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/daily-free-spins-for-coin-master-game-hack
- https://lesegais.ru/images/is-it-possible-to-get-free-robux_GM431946152.pdf
- https://lesegais.ru/images/games-to-get-free-robux_GM431946152.pdf
- https://lesegais.ru/images/coin-master-game-free-download_GM406889139.pdf
- https://lesegais.ru/images/coin-master-real-free-spins_GM406889139.pdf
- https://lesegais.ru/images/coin-master-free-2021-spin-link-today_GM406889139.pdf
- https://lesegais.ru/images/how-to-get-free-robux-website_GM431946152.pdf
- https://lesegais.ru/images/earn-free-robux-for-roblox_GM431946152.pdf
- https://lesegais.ru/images/coin-master-free-spins-ios-2021_GM406889139.pdf
- https://lesegais.ru/images/is-minecraft-free-on-xbox_GM479516143.pdf
- https://lesegais.ru/images/hacked-client-for-minecraft-bedrock_GM479516143.pdf
- https://lesegais.ru/images/free-spins-on-coin-master_GM406889139.pdf
- https://lesegais.ru/images/how-do-you-get-free-robux_GM431946152.pdf
- https://lesegais.ru/images/free-spins-and-coins-coin-master_GM406889139.pdf
- https://lesegais.ru/images/how-to-get-free-snacks-on-coin-master_GM406889139.pdf
- https://lesegais.ru/images/coin-master-free-spins-2021_GM406889139.pdf
- https://lesegais.ru/images/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdf
- https://lesegais.ru/images/coin-master-free-spins-2021-hack_GM406889139.pdf
- https://lesegais.ru/images/minecraft-xbox-360-free_GM479516143.pdf
- https://lesegais.ru/images/google-how-do-you-get-free-robux_GM431946152.pdf
- https://lesegais.ru/images/300-daily-free-spins-coin-master_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_003_off00004924.bin` `829b32899cc4fa8afee3c231f172bbca55dad0060e08e306d8d404bc44ea6ce3`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4924	25228 bytes
`font_01_sfnt_off0000818b.bin` `b750d5a8b44caccc122b2ff8294eb9307e18e87e3916697a2a7f0c063c77f291`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x818B	18308 bytes

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