PDF malware analysis — malicious · ada03c7d767c510e

MALICIOUS

PDF

44.9 KB Created: 2021-05-16 20:55:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 25abc5b2c9b4fd30895102ed9000fc98 SHA-1: 5e425f19df15796d223d80578df499fc0544a259 SHA-256: ada03c7d767c510e80bc736a484bd5162ca8e59578b6343f1153731c7ce47fad

82 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 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/479516143/free-private-minecraft-server-game-hack PDF link annotation
- http://www.woundcare4heroes.org.uk/uploads/files/files/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/coin-master-free-spins-and-coins-for-today_GM406889139.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/minecraft-wurst_GM479516143.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/free-roblox-gear_GM431946152.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/coin-master-coin-hack_GM406889139.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/coin-master-free-spins-and-chips_GM406889139.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/coin-master-hack-spins-2021_GM406889139.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/free-roblox-gfx_GM431946152.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
- http://www.woundcare4heroes.org.uk/uploads/files/files/coin-master-hack-without-verification-2021_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_off00004e30.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4E30	28740 bytes
SHA-256: `ef1f29afee84f1339f993495093d66e0688c57c879e6735066c043145bb9545b`
`font_01_sfnt_off00008eb5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EB5	17836 bytes
SHA-256: `7ff77ee3a78605da9ef85fec4605ea670974ab48e4ca839a7389016eb6bc2a09`

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