PDF malware analysis — malicious · 422077d38a88bda5

MALICIOUS

PDF

44.3 KB Created: 2021-05-16 06:37:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 69257534a8bad47e7a6d74952bd6c551 SHA-1: da8e9bbad1a2b67c57b444f4e07112bc972cdf5b SHA-256: 422077d38a88bda5b82f3cb5814d49ae97e251d566f8e6a2c70bceb407c5654c

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which are SEO-optimized and point to sites offering free in-game currency or hacks for popular games. The ML classifier strongly flagged this PDF as malicious, and the presence of external links suggests a phishing or scam attempt. No scripts were extracted, but the document's structure and embedded links indicate a lure for users to visit potentially malicious websites.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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/coin-master-15-free-spin-link-of-last-5-days-game-hack
- https://www.elevage-chiot.fr/images/how-do-you-get-free-roblox_GM431946152.pdf
- https://www.elevage-chiot.fr/images/roblox-got-talent-piano-hack_GM431946152.pdf
- https://www.elevage-chiot.fr/images/free-robux-no-survey_GM431946152.pdf
- https://www.elevage-chiot.fr/images/free-robux-codes-2021-not-used_GM431946152.pdf
- https://www.elevage-chiot.fr/images/get-free-robux-com_GM431946152.pdf
- https://www.elevage-chiot.fr/images/who-to-get-free-robux_GM431946152.pdf
- https://www.elevage-chiot.fr/images/minecraft-pocket-edition-apk-free-download_GM479516143.pdf
- https://www.elevage-chiot.fr/images/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdf
- https://www.elevage-chiot.fr/images/roblox-play-as-guest-free_GM431946152.pdf
- https://www.elevage-chiot.fr/images/free-spin-link-for-coin-master_GM406889139.pdf
- https://www.elevage-chiot.fr/images/how-to-get-free-tokens-in-minecraft-ps4_GM479516143.pdf
- https://www.elevage-chiot.fr/images/coin-master-2021_GM406889139.pdf
- https://www.elevage-chiot.fr/images/free-spins-coin-master-october-17-2021_GM406889139.pdf
- https://www.elevage-chiot.fr/images/hacker-minecraft-song_GM479516143.pdf
- https://www.elevage-chiot.fr/images/orewards-com-free-robux_GM431946152.pdf
- https://www.elevage-chiot.fr/images/free-spins-coin-master-twitter_GM406889139.pdf
- https://www.elevage-chiot.fr/images/mistplay-robux_GM431946152.pdf
- https://www.elevage-chiot.fr/images/how-to-get-free-hair-on-roblox_GM431946152.pdf
- https://www.elevage-chiot.fr/images/minecraft-free-ios-no-verification_GM479516143.pdf
- https://www.elevage-chiot.fr/images/get-robux-now_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_off00004e35.bin` `48d2648e7316d8380c7f4e69bd6b78eb93d185d59b9e990e96e7d0a7d0af3e60`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4E35	25756 bytes
`font_01_sfnt_off000089fc.bin` `4144dbe1534d0325d37e4c6129895ddb34a2bc26123e242025982d4ceef1bd2b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89FC	18644 bytes

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