PDF malware analysis — malicious · e6829ff2cf6761a9

MALICIOUS

PDF

43.3 KB Created: 2021-05-10 17:37:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: b79b33f9dae3d8a0439db3a8de8e72a1 SHA-1: ad5fade90d243201f2324ab52b08e00c3a0fb5d7 SHA-256: e6829ff2cf6761a987b1d05806c87f61f5f100fbe044c3cb911f9086d20f8191

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 0.9969

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/431946152/free-robux-on-iphone-game-hack PDF link annotation
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-spins-for-coin-master-that-work_GM406889139.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/best-tricks-co-robux_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/infinite-robux_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-robux-without-verify_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-robux-scam_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/200-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/coin-master-app_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_off00004c8a.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C8A	25472 bytes
SHA-256: `9569429510262eee8abbf5cc37f93e886772f96ad4015e2d0a6df61af18e0853`
`font_01_sfnt_off000086c2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86C2	18356 bytes
SHA-256: `09002ce3ba94cfa5154e24d4605185e25e9b5ae3e76d565aeacf431b5bbbf1e5`

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