PDF malware analysis — malicious · 4476b372ac59693c

MALICIOUS

PDF

35.9 KB Created: 2021-06-26 14:02:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: a0a30ecffcb0a28f44b4b2623c731bbe SHA-1: aa17103e4c8a4cc6b88cc904ec1f4e02b28b9189 SHA-256: 4476b372ac59693cfae72a5c3f9ca28325bca774723117ae11fd505702e2f545

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

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.
Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL

PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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/prison-life-roblox-hack-download-tablet-game-hack PDF link annotation
- http://103.68.2.77/__statics/gudangsoal/files/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdfPDF link annotation
- http://103.68.2.77/__statics/gudangsoal/files/roblox-font-free_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/roblox-free-headphones-2021_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/how-to-speed-hack-in-roblox-booga-booga_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/free-robux-today-dot-com_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/how-to-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/how-to-make-free-shirts-on-roblox-without-bc-2021_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/2021-how-to-free-admin-commands-to-your-roblox-gane_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/play-games-for-robux_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/robux-and-tix-hack_GM431946152.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/download-apk-tiktok-free_GM835599320.pdfIn PDF document text
- http://103.68.2.77/__statics/gudangsoal/files/hack-roblox-online-no-survey_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_off00003326.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3326	22604 bytes
SHA-256: `f3a77f9a964759d253ecca41979d37cd059817d0f1bd9b9b3dcdd04244f8e6b7`
`font_01_sfnt_off000065a0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65A0	19540 bytes
SHA-256: `e4e3601d15eda4b265b81a81863fcd167bf8fb3f9ece1ac42888a58737906cfc`

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