PDF malware analysis — malicious · 3f860ee89d64cdfa

MALICIOUS

PDF

43.5 KB Created: 2021-06-11 03:35:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 04296de6645ea7e7a8da9d0d19fc6075 SHA-1: 5df3b90c8c2a499bd506acb8c8d1e89d05e85e69 SHA-256: 3f860ee89d64cdfa2942f0d33471bb0084bb51be62f8b4d6c4f01dc78fc801b8

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many of which appear to be SEO-optimized for game-related hacks, suggesting a link farm or a distribution point for malicious files. The presence of a 'download button' heuristic further supports the idea that the document is designed to trick users into clicking links that lead to harmful content. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/hack-gen-roblox-game-hack
- https://gigbagwinkel.nl/images/coin-master-hack-apk-download-2021_GM406889139.pdf
- https://gigbagwinkel.nl/images/how-to-get-zombie-animation-for-free-roblox_GM431946152.pdf
- https://gigbagwinkel.nl/images/roblox-robux-hack_GM431946152.pdf
- https://gigbagwinkel.nl/images/coin-master-cheat-to-get-free-spins_GM406889139.pdf
- https://gigbagwinkel.nl/images/free-roblox-neclaces_GM431946152.pdf
- https://gigbagwinkel.nl/images/coin-master-download-hack-ios_GM406889139.pdf
- https://gigbagwinkel.nl/images/how-can-you-get-free-robux_GM431946152.pdf
- https://gigbagwinkel.nl/images/coin-master-free-spins-link-today-new_GM406889139.pdf
- https://gigbagwinkel.nl/images/how-to-get-free-robux-on-computer_GM431946152.pdf
- https://gigbagwinkel.nl/images/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdf
- https://gigbagwinkel.nl/images/coin-master-coins-free_GM406889139.pdf
- https://gigbagwinkel.nl/images/games-that-can-be-hacked_GM431946152.pdf
- https://gigbagwinkel.nl/images/ways-to-earn-robux_GM431946152.pdf
- https://gigbagwinkel.nl/images/how-do-we-get-free-robux_GM431946152.pdf
- https://gigbagwinkel.nl/images/minecraft-redeem-code-free_GM479516143.pdf
- https://gigbagwinkel.nl/images/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdf
- https://gigbagwinkel.nl/images/roblox-free-items-2021_GM431946152.pdf
- https://gigbagwinkel.nl/images/how-to-watch-any-movie-for-free-tiktok-hack_GM835599320.pdf
- https://gigbagwinkel.nl/images/toolbox-for-minecraft-ios_GM479516143.pdf
- https://gigbagwinkel.nl/images/coin-master-free-spins-link-today-instagram_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_004_off00004cf1.bin` `d133bba657d151296b187e76da893a5b4161a23b5b1a9b7d24edb5042ad9ab1c`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4CF1	26100 bytes
`font_01_sfnt_off00008752.bin` `a7d9e74a65243a483b4aee1349b2f876ace4de98d0aca7f302d327a7c02103b7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8752	18184 bytes

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