PDF malware analysis — malicious · 865b82c5d14b9ea4

MALICIOUS

PDF

41.9 KB Created: 2021-05-14 14:19:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: eec9d03648ece2764c427de025498425 SHA-1: 40a49983070a9d9735fc8df1ea105d77ff9c5aca SHA-256: 865b82c5d14b9ea43b78013811297b828bc4e69a44ce145148eaab39f173c5dd

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a lure related to game hacks, specifically for Coin Master and Roblox. The primary link, https://netcdn.xyz/app/406889139/coin-master-hack-ios-download-game-hack, is flagged as a redirector for game hacks. The ML classifier also strongly indicated maliciousness. The document's intent is to trick users into downloading potentially malicious files or visiting phishing sites by promising in-game advantages.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-hack-ios-download-game-hack PDF link annotation
- http://schmittmusik.de/images/roblox-its-free_GM431946152.pdfIn PDF document text
- http://schmittmusik.de/images/infinite-robux_GM431946152.pdfIn PDF document text
- http://schmittmusik.de/images/coin-master-hack-spin-generator-tool_GM406889139.pdfIn PDF document text
- http://schmittmusik.de/images/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
- http://schmittmusik.de/images/hack-coin-master-game-apk-download_GM406889139.pdfIn PDF document text
- http://schmittmusik.de/images/hack-coin-master-apk-31_GM406889139.pdfIn PDF document text
- http://schmittmusik.de/images/coin-master-free-spins-link-cheat_GM406889139.pdfIn PDF document text
- http://schmittmusik.de/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- http://schmittmusik.de/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- http://schmittmusik.de/images/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
- http://schmittmusik.de/images/roblox-free-draw_GM431946152.pdfIn PDF document text
- http://schmittmusik.de/images/coin-master-free-coins_GM406889139.pdfIn PDF document text
- http://schmittmusik.de/images/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
- http://schmittmusik.de/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://schmittmusik.de/images/coin-master-free-spin-redeem-code_GM406889139.pdfIn PDF document text
- http://schmittmusik.de/images/roblox-cheat-robux_GM431946152.pdfIn PDF document text
- http://schmittmusik.de/images/coin-master-event-hack_GM406889139.pdfIn PDF document text
- http://schmittmusik.de/images/2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
- http://schmittmusik.de/images/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- http://schmittmusik.de/images/free-pet-food-for-coin-master_GM406889139.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_003_off0000481f.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x481F	25332 bytes
SHA-256: `df86f003f572cf40950b302806e7af4e00209cc43b219c6019f6b06564b72fc5`
`font_01_sfnt_off0000815f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x815F	18296 bytes
SHA-256: `abb5dc3882d33bb675e42633b9ef907b5fa8a8f8ffe877e273a1ba74b2e79714`

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