PDF malware analysis — malicious · fd35a84df760414f

MALICIOUS

PDF

43.3 KB Created: 2021-05-11 21:57:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: f1e9764414946fc27b4dd1303206b8a6 SHA-1: 9cdb3f78267b2347eec4965beef401e9207f2b35 SHA-256: fd35a84df760414f0b92f6cd100a9e46947f3848a66fd6593561ac50eb4b5d5e

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a document body that promotes free game items and currency, indicative of a lure for phishing or malware downloads. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, and the ML classifier strongly flagged this PDF as malicious. The primary IOCs are the external URLs, which likely lead to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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/how-to-get-minecraft-for-free-on-ps4-2021-game-hack
- https://www.kambati.co.za/images/lazyblox-com-free-robux_GM431946152.pdf
- https://www.kambati.co.za/images/free-coins-for-flip-master_GM406889139.pdf
- https://www.kambati.co.za/images/where-can-i-get-free-spins-for-coin-master_GM406889139.pdf
- https://www.kambati.co.za/images/hack-coin-master-without-verification_GM406889139.pdf
- https://www.kambati.co.za/images/how-to-earn-free-spin-in-coin-master_GM406889139.pdf
- https://www.kambati.co.za/images/free-shirt-roblox_GM431946152.pdf
- https://www.kambati.co.za/images/free-spins-coin-master-no-survey_GM406889139.pdf
- https://www.kambati.co.za/images/coin-master-hack-version-download-2021-ios_GM406889139.pdf
- https://www.kambati.co.za/images/how-to-free-robux_GM431946152.pdf
- https://www.kambati.co.za/images/how-to-get-free-robux-without-surveys_GM431946152.pdf
- https://www.kambati.co.za/images/coin-master-mod-version-free-download-ios_GM406889139.pdf
- https://www.kambati.co.za/images/how-you-get-free-robux_GM431946152.pdf
- https://www.kambati.co.za/images/coin-master-20-free-spins-link-2021_GM406889139.pdf
- https://www.kambati.co.za/images/blogspot-coin-master-spins_GM406889139.pdf
- https://www.kambati.co.za/images/coin-master-free-coins-generator_GM406889139.pdf
- https://www.kambati.co.za/images/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdf
- https://www.kambati.co.za/images/roblox-robux-hack-generator_GM431946152.pdf
- https://www.kambati.co.za/images/coin-master-free-spins-link-download-hack_GM406889139.pdf
- https://www.kambati.co.za/images/coin-master-free-spins-link-quora_GM406889139.pdf
- https://www.kambati.co.za/images/free-robux-giveaway_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_off00004c1b.bin` `8935eebbeed34ee60fa31ba645fea59b4821037a92685a5924a276ea54f90afa`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C1B	25580 bytes
`font_01_sfnt_off00008664.bin` `59dadd7e4280a1ed716b01789963ead00ba75883d4e16a7974e6139f8c4f7ce5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8664	18492 bytes

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