PDF malware analysis — malicious · a8a21a3d2d028d45

MALICIOUS

PDF

34.3 KB Created: 2021-06-28 20:10:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 5649ab8679c79cf6915fa423e3bc1b36 SHA-1: 56295ea31319c5ba41a9d5286b6f06116379ae4a SHA-256: a8a21a3d2d028d4506860aaca7aa5c9d51dac27e2e75d9dfe023937b35e039fb

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for a game hack redirect lure, pointing to a URL that promises free Robux. The document body and embedded URLs reinforce this theme, indicating a phishing or scam attempt to redirect users to a malicious site. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
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-get-free-robux-web-game-hack PDF link annotation
- https://www.croatia-flyfishing.com/files/roblox-hack-client_GM431946152.pdfIn PDF document text
- http://croatia-flyfishing.com/files/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/free-stuff-on-roblox_GM431946152.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/free-robux-mod_GM431946152.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/https-mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
- http://croatia-flyfishing.com/files/coin-master-free-spins-and-coins-without-human-verification_GM406889139.pdfIn PDF document text
- http://croatia-flyfishing.com/files/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
- http://croatia-flyfishing.com/files/free-followers-roblox-2021_GM431946152.pdfIn PDF document text
- http://croatia-flyfishing.com/files/how-to-hack-into-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
- http://croatia-flyfishing.com/files/free-minecraft-hacks_GM479516143.pdfIn PDF document text
- http://croatia-flyfishing.com/files/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://croatia-flyfishing.com/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/mcpe-hacks_GM479516143.pdfIn PDF document text
- http://croatia-flyfishing.com/files/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/free-robux-promo-codes-list-2021_GM431946152.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
- http://croatia-flyfishing.com/files/free-minecraft-website_GM479516143.pdfIn PDF document text
- https://www.croatia-flyfishing.com/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- http://croatia-flyfishing.com/files/rbx-sites_GM431946152.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_off00002f02.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F02	22232 bytes
SHA-256: `fe8462141d2d548006f173a810c9d9d8d06bd1ee42ecb16e5ebe2ddaabfbd9fd`
`font_01_sfnt_off00006054.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6054	19180 bytes
SHA-256: `4d2f1739a16f54673fa6a7b161daa4ba2028c3cee9130a28dbc9db2498a1895f`

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