PDF malware analysis — malicious · b54a3b9300a36f84

MALICIOUS

PDF

34.6 KB Created: 2021-07-01 23:31:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: cb98b13ba6e16740499f4c55ff2528d1 SHA-1: c94e8b3e43f05b2ecf40babf64838bab0119fcb0 SHA-256: b54a3b9300a36f8420a4fad1074f8c851c4edf2e273597ab7fce0a9fe31d4f09

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains numerous embedded URLs and a document body that promotes hacking tools for popular games like Roblox and Coin Master. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm designed to attract users searching for cheats. The ML classifier also flagged this PDF as malicious with high confidence. The presence of external URIs and the overall theme point towards a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/como-hackear-roblox-android-game-hack
- https://luckydealuae.com/uploaded_files/userfiles/files/roblox-2021-cheat-engin_GM431946152.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/hacking-command-game-roblox_GM431946152.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/https-web-roblox-com-games-2021202187-free-join-now_GM431946152.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-new_GM406889139.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/coin-master-facebook-free-spins_GM406889139.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/free-coin-master-spins-for-today_GM406889139.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-robux_GM431946152.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/how-to-get-any-item-in-roblox-free-december-2021_GM431946152.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/how-to-get-roblox-premium-for-free_GM431946152.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/download-roblox-robux-hack-free_GM431946152.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/hacks-for-coin-master_GM406889139.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/roblox-com-free-robux_GM431946152.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/hackcom-for-roblox_GM431946152.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/coin-master-100-spin_GM406889139.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/is-there-a-real-way-to-get-free-robux_GM431946152.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/coin-master-free-spins-today-daily-links_GM406889139.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/coin-master-hack-apk-2021_GM406889139.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/coin-master-hack-mod-game-download_GM406889139.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/how-do-you-get-roebucks_GM431946152.pdf
- https://luckydealuae.com/uploaded_files/userfiles/files/free-robux-generator-download-2021_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000030f8.bin` `928c0821aa06c2beb9c756f1124b108a04436a077b81a94b5a68a5c659b3dcb9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30F8	22124 bytes
`font_01_sfnt_off000061ec.bin` `06d346ad092b5058621fd3e3514cd7a1d6845c1b82180344916337ff54b3a97e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61EC	19208 bytes

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