PDF malware analysis — malicious · 25f101a8d52723b1

MALICIOUS

PDF

43.1 KB Created: 2021-05-19 07:34:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 299d4619f88f9a1c0540ba9c5c266512 SHA-1: 59367f925d8b82899caa04338d9c4741da602a84 SHA-256: 25f101a8d52723b1f9c1e9646c9717508f650bdcccad3f0b2b2e8c072c732eb6

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links, identified by the PDF_SEO_LINK_FARM heuristic, that point to websites offering "free money" and game hacks. The ML classifier also strongly indicated maliciousness. These links likely lead to scam pages or further malicious content, aiming to trick users into clicking through a malicious link.

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-money-links-coin-master-game-hack
- http://easytransferbrazil.com/images/coin-master-free-coins-link-2021_GM406889139.pdf
- http://easytransferbrazil.com/images/free-robux-roblox-promo-codes_GM431946152.pdf
- http://easytransferbrazil.com/images/free-roblox-adopt-me-pets_GM431946152.pdf
- http://easytransferbrazil.com/images/websites-for-robux_GM431946152.pdf
- http://easytransferbrazil.com/images/http-blackgamesus-coinmasterhack_GM406889139.pdf
- http://easytransferbrazil.com/images/como-hackear-coin-master-iphone_GM406889139.pdf
- http://easytransferbrazil.com/images/coin-master-heaven-free-spins-link-2021_GM406889139.pdf
- http://easytransferbrazil.com/images/coin-master-hack-xyz_GM406889139.pdf
- http://easytransferbrazil.com/images/best-free-spins-for-coin-master_GM406889139.pdf
- http://easytransferbrazil.com/images/coin-master-hack-no-survey-2021_GM406889139.pdf
- http://easytransferbrazil.com/images/coin-master-free-spins-and-coins-for-iphone_GM406889139.pdf
- http://easytransferbrazil.com/images/coin-master-free-spins-link-blogspot-2021_GM406889139.pdf
- http://easytransferbrazil.com/images/coin-master-34-6-hack_GM406889139.pdf
- http://easytransferbrazil.com/images/free-robux-with-no-survey_GM431946152.pdf
- http://easytransferbrazil.com/images/roblox-assassin_GM431946152.pdf
- http://easytransferbrazil.com/images/free-robux-2021_GM431946152.pdf
- http://easytransferbrazil.com/images/master-coin-free-spin_GM406889139.pdf
- http://easytransferbrazil.com/images/coin-master-free-spins-link_GM406889139.pdf
- http://easytransferbrazil.com/images/free-robux-kid-friendly-no-human-verification_GM431946152.pdf
- http://easytransferbrazil.com/images/free-hacks-for-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_off00004c85.bin` `43b3bf8201d9f9a9bd36cb805db687889992859e55bab5db8ee5c4e2f489337d`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C85	25268 bytes
`font_01_sfnt_off000086e2.bin` `21a754cd3574cb6c7a71d18422cf3ecba321ae18705df6ac97d40721e73d98df`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86E2	18060 bytes

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