PDF malware analysis — malicious · 1eeab1d7d7a6bd14

MALICIOUS

PDF

42.5 KB Created: 2021-05-15 00:58:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 5235f9d9ebd4b4e91008eb2aaa57751c SHA-1: b7cf018611896f96e10c729088e24922e6d6967e SHA-256: 1eeab1d7d7a6bd149925252b7f02207f2adf0148d2a053f874dfdefa56924b1e

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous external links, many of which are structured as a link farm, suggesting an attempt to drive traffic to malicious or deceptive content. The document body and extracted URLs explicitly mention 'free Robux' and 'game hacks', indicating a lure for potentially unwanted or malicious downloads. While no scripts were directly extracted, the PDF structure and the presence of external URIs suggest it acts as a dropper or redirector.

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/431946152/get-free-robux-without-doing-anything-game-hack
- https://rietenwinkel.nl/images/coin-master-free-coins-twitter_GM406889139.pdf
- https://rietenwinkel.nl/images/how-to-hack-any-roblox-account_GM431946152.pdf
- https://rietenwinkel.nl/images/minecraft-pe-free-ios_GM479516143.pdf
- https://rietenwinkel.nl/images/hack-coin-master-apk-ios_GM406889139.pdf
- https://rietenwinkel.nl/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
- https://rietenwinkel.nl/images/coin-master-hack-unlimited-spins-game-download_GM406889139.pdf
- https://rietenwinkel.nl/images/bloxpage-free-robux_GM431946152.pdf
- https://rietenwinkel.nl/images/coin-master-hack-coins_GM406889139.pdf
- https://rietenwinkel.nl/images/coin-master-free-spins-link-no-verification_GM406889139.pdf
- https://rietenwinkel.nl/images/20210-free-spin-links-for-coin-master_GM406889139.pdf
- https://rietenwinkel.nl/images/robux-free-gift-card-org-hack_GM431946152.pdf
- https://rietenwinkel.nl/images/free-online-games-like-minecraft_GM479516143.pdf
- https://rietenwinkel.nl/images/how-to-hack-roblox-jailbreak_GM431946152.pdf
- https://rietenwinkel.nl/images/make-robux_GM431946152.pdf
- https://rietenwinkel.nl/images/roblox-free-robux-website_GM431946152.pdf
- https://rietenwinkel.nl/images/roblox-royale-high-diamond-hack_GM431946152.pdf
- https://rietenwinkel.nl/images/freespinandcoin_GM406889139.pdf
- https://rietenwinkel.nl/images/how-to-get-free-spins-for-coin-master_GM406889139.pdf
- https://rietenwinkel.nl/images/coin-master-date-and-time-hack_GM406889139.pdf
- https://rietenwinkel.nl/images/how-to-hack-in-roblox-prison-life_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_off00004782.bin` `20c0e2bdb0951c802d081ab7b05bf533fb5bc1ba1a49e1e2794e79701c4e3805`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4782	24764 bytes
`font_01_sfnt_off000080b6.bin` `a9e3aa10522a438dd9eef37bb3e7f322f16e38379d063b4a50e22a05dda2bc13`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x80B6	19240 bytes

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