PDF malware analysis — malicious · 75c436a0b18bd48b

MALICIOUS

PDF

33.4 KB Created: 2021-07-03 19:32:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 671cfc43def75f44773dce4d52fbee7c SHA-1: ceecea18d09d448115e9e02f65bce4e821a8b884 SHA-256: 75c436a0b18bd48bc621e7f8b6f262c7bbb3abbb221eb9a9c1018ddd08496bb2

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action lure, directing users to websites that promise free in-game currency or hacks. The primary malicious URL identified is http://netcdn.tw/app/431946152/roblox-pink-free-robux-game-hack, which likely serves as a redirector to a malicious payload or phishing page. The document's structure and content strongly suggest a social engineering tactic to trick users into visiting potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9824

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.tw/app/431946152/roblox-pink-free-robux-game-hack PDF link annotation
- https://www.dc-itsolutions.com/userfiles/files/robux-promocodes-no-hacking_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/master-coin-hack-mod_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/roblox-phantom-forces-hack-2021-script-executor_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/games-that-give-free-robux_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-game-free-download_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-minecraft-server_GM479516143.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/hack-noclimb-roblox-2021-march_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/how-to-get-free-robux-2021-on-ios_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/generator-robux_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/robux-withdraw_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_off00002aec.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2AEC	22684 bytes
SHA-256: `b184b39b7f4219ab8018e5414f1f8cec484ff3753e0d3c54fd377aeda8a5583a`
`font_01_sfnt_off00005d75.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D75	19236 bytes
SHA-256: `7f3ae533f1b20c2c9ad227d8ec2a812f6ca4ef2a098c849ad4932b76dc1c09fe`

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