PDF malware analysis — malicious · 8296d429d66d47c6

MALICIOUS

PDF

42.3 KB Created: 2021-05-15 17:02:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 28018c61456237cd14792adc6b846a34 SHA-1: 9c745d664580817e4fad115692c8371b405db271 SHA-256: 8296d429d66d47c68e5337a0913bafb32145f848dd12b2aeadf6d1fe7b3f9fb8

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which are related to game cheats and free items, indicating a link farm or phishing attempt. The ML classifier also flagged this PDF as malicious. The presence of embedded URLs and the heuristic firing for a PDF link farm strongly suggest a malicious intent to redirect users to potentially harmful websites.

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/479516143/free-minecraft-accounts-reddit-game-hack
- https://www.acacss.com/images/coin-master-free-spins-link-quora_GM406889139.pdf
- https://www.acacss.com/images/how-to-coin-master-spin-hack_GM406889139.pdf
- https://www.acacss.com/images/coin-master-spin-cheat_GM406889139.pdf
- https://www.acacss.com/images/free-minecraft-skin-maker_GM479516143.pdf
- https://www.acacss.com/images/how-to-get-free-spins-on-coin-master_GM406889139.pdf
- https://www.acacss.com/images/coin-master--hack_GM406889139.pdf
- https://www.acacss.com/images/free-robux-games-that-actually-work-2021_GM431946152.pdf
- https://www.acacss.com/images/get-free-cards-coin-master_GM406889139.pdf
- https://www.acacss.com/images/free-robux-no-verify-2021_GM431946152.pdf
- https://www.acacss.com/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdf
- https://www.acacss.com/images/how-to-get-free-robux-on-phone-2021_GM431946152.pdf
- https://www.acacss.com/images/how-to-get-free-robux-hack-2021_GM431946152.pdf
- https://www.acacss.com/images/coin-master-free-spins-link-2021-no-verification_GM406889139.pdf
- https://www.acacss.com/images/roblox-how-to-get-free-clothes_GM431946152.pdf
- https://www.acacss.com/images/free-robux-survey_GM431946152.pdf
- https://www.acacss.com/images/how-to-get-free-robux-on-mobile_GM431946152.pdf
- https://www.acacss.com/images/coin-master-hack-2021-free_GM406889139.pdf
- https://www.acacss.com/images/coin-master-unlimited-spin-hack_GM406889139.pdf
- https://www.acacss.com/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdf
- https://www.acacss.com/images/how-to-get-free-robux-easy-on-phone_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_off00004a08.bin` `3c8839aef0cfb97e89973ac2c00cdfddb51d67118cce5570d285cd318c06de49`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A08	25176 bytes
`font_01_sfnt_off000083bf.bin` `8cc2f99dc924a15d52918b37ec4a77595277c9fc296e6ac0964170e61a15a16b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83BF	18024 bytes

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