PDF malware analysis — malicious · e4a06b290a083d7a

MALICIOUS

PDF

44.6 KB Created: 2021-06-03 04:33:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: bc0bc8eb4599f448b1886992bf034186 SHA-1: 32a3d5484bdc9745a28dcdebc284850c4283ed5e SHA-256: e4a06b290a083d7ae1da8ec2ac44ffeb95d042d9bc17d7a075f1892907b12958

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 0.9865

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.online/app/406889139/coin-master-daily-free-spins-link-today-game-hack PDF link annotation
- https://www.insol-europe.org/uploads/files/files/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-free-version_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-games-free-download_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/hack-coin-master-android-game_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/i-need-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-education-free_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-app-real_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-codes-generator_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-spin-link-for-coin-master-game_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_004_off000051c8.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x51C8	24828 bytes
SHA-256: `b1d8145ef1765d74a9353e12fd7cbf23c3f02de940bb1b1f3fbae437d3d540f7`
`font_01_sfnt_off00008a7e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A7E	18652 bytes
SHA-256: `b7acebacf47409c7f0f2932ba41e4c1dc120b4ef5280387cf9333091bd47b2e0`

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