PDF malware analysis — malicious · 0a84db0263006041

MALICIOUS

PDF

45.5 KB Created: 2021-06-03 07:31:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16

MD5: b2c1375fa51fdf6dbf2b4c781f7174aa SHA-1: bfa4bd1ed0f374fa208e6616a42211e71f4f5526 SHA-256: 0a84db026300604115e55cdb8dd94b1712afeed5217e96994097cf481b752f07

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and free currency. The primary redirector URL is https://netcdn.online/app/406889139/coin-master-free-spins-today-daily-links-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector lure, likely intended to lead users to further malicious content or phishing sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

Heuristics 4

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.
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 https://netcdn.online/app/406889139/coin-master-free-spins-today-daily-links-game-hack In PDF document text
- https://www.woundcare-today.com/uploads/files/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/coin-master-400-spin-link-hack_GM406889139.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/minecraft-com-free_GM479516143.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/coin-master-free-spins-cash_GM406889139.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/coin-master-generator-free_GM406889139.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/como-hackear-coin-master-en-espaol_GM406889139.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/get-coin-master-spins-free_GM406889139.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/get-free-robux-com_GM431946152.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/free-robux-pastebin_GM431946152.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/coin-master-free-spins-link-download-ios_GM406889139.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/get-free-tiktok-followers-app_GM835599320.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.woundcare-today.com/uploads/files/files/free-robux-hack-no-verification_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
`stream_004_off00005381.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5381	26224 bytes
SHA-256: `1ba0612a4b20b7998214b7844b4b26c47233a54898fa669e55dd44af2529f3d3`
`font_01_sfnt_off00008e51.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E51	18652 bytes
SHA-256: `52d597ff4b9023df6b3510b92f87dc1d2329aed0448bc9fa59130058567cb992`

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