PDF malware analysis — malicious · 56d8efa44f8b236e

MALICIOUS

PDF

34.5 KB Created: 2021-06-26 05:29:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15

MD5: c345ae6d7082e05705377bafb82f225d SHA-1: fd605d48f3c540087154b105e4e5b6054e9603b7 SHA-256: 56d8efa44f8b236e26a2fd77f03386f53fad15117cf58096ff13b0da27bbef39

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links to external resources, many of which are SEO-optimized PDFs promising game hacks and cheats. The primary URL, http://netcdn.co/app/431946152/how-to-hack-a-roblox-account-easy-2021-game-hack, likely serves as a landing page for a malicious download or exploit. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of 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/how-to-hack-a-roblox-account-easy-2021-game-hack PDF link annotation
- https://www.takathmanduhotel.com/userfiles/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/best-free-robux-sites_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/hack-coin-master-no-survey_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/free-face-roblox_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/hacking-in-roblox-wild-savannah_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/minecraft-free-download-laptop_GM479516143.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/earn-robux-online_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/roblox-superhuman-training-simulator-cheats-on-speed_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/free-robux-hack-youtube-pc_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/all-minecraft-handbooks_GM479516143.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/roblox-games-with-free-vip-servers_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
- https://www.takathmanduhotel.com/userfiles/files/coin-master-hack-pc-download_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00002deb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2DEB	22316 bytes
SHA-256: `64a33a8ea9f1d76e5dd0e0f05d20ce337a5854b8c14a8fd167eda56c8e1c1bc5`
`font_01_sfnt_off00005fad.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FAD	19644 bytes
SHA-256: `3c2604ed908c09dd80eef396d7e75b69619a54d380728d377e7f54a8b000dce0`

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