PDF malware analysis — malicious · 86b6da1433477ce0

MALICIOUS

PDF

44.6 KB Created: 2021-05-16 11:31:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: dcaf2a5f5fffe8252dea32c4909a79f0 SHA-1: 5d64f366aa965d8e9b6e5e0791fb10990e695827 SHA-256: 86b6da1433477ce0c4c6d50a41edba94f3ed0a4b7eb76d7ae6c7a6a65b7b112f

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically advertising 'game hacks' and 'free spins' for games like Coin Master. The primary malicious link identified is https://netcdn.xyz/app/406889139/coin-master-daily-free-spin-app-game-hack. The document body, though partially corrupted, contains references to game hacks and the malicious URL, reinforcing the lure. The presence of embedded URLs and the nature of the content strongly suggest a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

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.xyz/app/406889139/coin-master-daily-free-spin-app-game-hack In PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/free-roblox-characters_GM431946152.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/roblox-studio-free_GM431946152.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/coin-master-free-bonus_GM406889139.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/coin-master-hack-injection_GM406889139.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/coin-master-unlimited-spins-apk-free-download_GM406889139.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/roblox-redeem_GM431946152.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/minecraft-pe-free_GM479516143.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/coin-master-spin-ml_GM406889139.pdfIn PDF document text
- http://www.arabianlasdiamond.com/uploaded_files/userfiles/files/robux-hack-generator_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004874.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4874	25040 bytes
SHA-256: `3efc04684c4d825bfd55d9e2f442533fcf160273d7ea7239c7556a365c76d577`
`font_01_sfnt_off00008215.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8215	2820 bytes
SHA-256: `96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689`
`font_02_sfnt_off00008bb5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BB5	18308 bytes
SHA-256: `f9a3a46f76b0cae8a4d9bd0baf07f2a5aefd3f4554b846be65e0119e8f17791d`

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