PDF malware analysis — malicious · d32517495662233b

MALICIOUS

PDF

33.9 KB Created: 2021-07-04 10:05:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: e3887a7ffdaa80c57f89235e87c6d43b SHA-1: ee9516e41137f22dad2fe99eb691720945e35737 SHA-256: d32517495662233b39ea82c42c8ac026c76633f46ae1d14846ab2e908722a64f

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a game hack lure to trick users into visiting a malicious URL. The document contains multiple embedded URLs, with the primary one being http://netcdn.tw/app/406889139/coin-master-spin-hack-apk-game-hack, which is designed to redirect users to potentially harmful content. The ML classifier strongly indicates maliciousness, supporting the observed lure.

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.tw/app/406889139/coin-master-spin-hack-apk-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/robux-free-eazy_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/get-free-robux-com_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-hack-com_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/hack-into-roblox-acount_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/gamekit-didnt-give-me-free-800-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/hack-for-robux-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-spin-coin_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-roblox-code-in-muder-mystery-2_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/rexima-roblox-cheat_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-copy-pasta_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-cheat-engine-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-link_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-cheat-codes-jailbreak_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-roblox-card_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/try-minecraft-free_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/clicker-series-roblox-hack_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-free-neck-accessories_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-pics_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_off00002eb0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EB0	22912 bytes
SHA-256: `4f67307e9b85d11ee855122e13e53e5b70b1c566d5dcbbdd63553d1bcc83bc39`
`font_01_sfnt_off000061e7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61E7	18180 bytes
SHA-256: `eeaf9fe1c7e6789caefc07d53c000bb69e844de2835645c48fad05e1619410a4`

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