PDF malware analysis — malicious · f9c11c459176aad3

MALICIOUS

PDF

34.6 KB Created: 2021-06-20 08:02:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: c3af4175234ba579945db24da197f10b SHA-1: 81db74dfbe6495dad4716407806f0fd1cffb6026 SHA-256: f9c11c459176aad33dd3a57646f6fb8c773a91139d250fc1f07f1f6cafd22c85

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links and a prominent external URI, all related to game hacks and free currency, suggesting a lure for users to download potentially malicious content. The heuristic firings, including PDF_SEO_LINK_FARM and ML_NYX_PDF_MALICIOUS, strongly indicate malicious intent. The document body reinforces this by mentioning 'How To Hack Robux Easy' and listing various game-related download links.

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/how-to-hack-robux-easy-game-hack
- https://balibanknews.com/new/public/ckfinder/userfiles/files/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/how-to-get-roebucks_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/minecraft-ps4-free_GM479516143.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/adopt-me-roblox-hacks_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-robux-no-human-verify_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-spins-coin-master-blogspot_GM406889139.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-hack-2021_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox-on-ipad-2021_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/coin-master-free-link-spin_GM406889139.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-robux-pins_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/sites-to-get-free-robux_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/coin-master-spin-link-today_GM406889139.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/roblox-premium-free_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-spin-coin-master-2021-link_GM406889139.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/tiktok-free-view-59_GM835599320.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/www-free-robux-com_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-robux-hack-no-human-verification_GM431946152.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/how-to-hack-coin-master_GM406889139.pdf
- https://balibanknews.com/new/public/ckfinder/userfiles/files/free-robux-no-human-verification-or-survey-or-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_off00003139.bin` `5cb1157c26a3b9adaf61516a16ddcbdb824f6a85a3e9307b41c0ec8b3e276ba1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3139	22036 bytes
`font_01_sfnt_off00006221.bin` `a6add2bb834c13f7f9a4f3251d35c3dd089be131a4b5e31ad33a6b2cfaab807d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6221	19068 bytes

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