PDF malware analysis — malicious · 72bd416352f94465

MALICIOUS

PDF

34.4 KB Created: 2021-07-06 02:16:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24

MD5: d89b3a356263db79a750413c44cab125 SHA-1: 39e1bda86d910491a52ac4be28934c0584ad833c SHA-256: 72bd416352f94465340723745f5248e769f484f81c95ba3b1e3037904449bd24

220 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to lure users into clicking on them by promising game hacks and free currency. The primary link redirects to a known malicious domain, suggesting a phishing or scam attempt. The document's structure and content indicate it's part of a link farm designed to drive traffic to potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 5

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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
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/easy-roblox-today-game-hack In PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-make-a-badge-for-free-roblox_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-its-free_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-get-free-clothing-on-roblox_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/hack-for-free-fake-ptomocodes-that-give-robux_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/teleport-roblox-jilbreak-hack_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-ninja-legends-hack-pets_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-com-hack_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-game-free-download-for-windows-7_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-get-roblox-veichle-simulator-hacks_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/free-robux-no-surveys-or-verification_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-murder-mystery-2-hack-2021_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-shiny-teeth-free_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.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_off000030a5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30A5	22128 bytes
SHA-256: `88b788ee7792c3111865bb9215f32afd0955369ee4ac10d6504b31f64eda43ad`
`font_01_sfnt_off000061d0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61D0	18840 bytes
SHA-256: `b3bd375acba33e77ee22fe000258108f1e95af5de1f32840daa69e2e54d0cbf0`

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