PDF malware analysis — malicious · d4a030550d7fdb77

MALICIOUS

PDF

34.7 KB Created: 2021-06-28 08:14:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 59a963b56f4c7690bb7111e9e87d91f7 SHA-1: 2c4496c001c9cd62333ddb28d1649885abbef65e SHA-256: d4a030550d7fdb778dd9d780c141486ab195add8e4ffbd7b1c7ff15eabc546a3

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains lures related to game hacks and free currency, directing users to external URLs. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' specifically flags this behavior. While no scripts were extracted, the embedded URLs are the primary indicators of malicious intent, likely leading to further compromise or phishing attempts.

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/431946152/2021-robux-hack-game-hack PDF link annotation
- https://vieclamjapan.com/upload/files/minecraft-116-free_GM479516143.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/moonactive-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/instagram-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/roblox-hack-scripts-admin_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/how-to-get-roblox-faces-for-free_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/roblox-robux-generator_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-free-spins-2021-generator_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/zombie-attack-roblox-hack_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/minecraft-pe-016-0-apk-download-free_GM479516143.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/today-coin-master-spin-free_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/https-webrobloxcom-games-2021202177-creeperawwman14-hack_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/roblox-hack-no-verification-needed_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-hack-https-coinms-net_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_off000031ed.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31ED	21812 bytes
SHA-256: `fdd5ab5ecd2f58631237714a628be6b06880376d5d12d0d5eb8ddc7e1289da90`
`font_01_sfnt_off0000621a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x621A	19124 bytes
SHA-256: `8de0e3ed3ef02597c1009b22b08f709d39da6e5fead794b6fab330f1ffcf0943`

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