PDF malware analysis — malicious · 4e34cb35953c044e

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 12:21:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: aaf4bbf78781007dc572f6e0876e1215 SHA-1: 2d0e4b7d96d5c5e5a34e4bbba2cfc933461c0500 SHA-256: 4e34cb35953c044e009d25476bfe7873a1d04175ecf9ed9388202894e7f92e31

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/free-coin-master-spins-no-verification-game-hack PDF link annotation
- https://www.insol-europe.org/uploads/files/files/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/flame-gg-free-robux_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/how-to-play-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/coin-master-free-spins-daily-link-game-mod_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/tiktok-free-coins-apk_GM835599320.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/free-spins-for-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
- https://www.insol-europe.org/uploads/files/files/hack-robux_GM431946152.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_off00005072.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5072	25344 bytes
SHA-256: `58ae28b83d2069cbfe2ad04cb0e3ad718339c17eea130d70ff70971f102645ac`
`font_01_sfnt_off00008ae8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8AE8	18020 bytes
SHA-256: `dd5f5b200dad3ed55c7c2e4b73125e453bab6792b82eb04fea180a40f9e0c889`

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