PDF malware analysis — malicious · 76f582b81b9a754a

MALICIOUS

PDF

35.5 KB Created: 2021-07-03 12:56:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 12fc265bd6dbec5ffb53b5bf2e075c84 SHA-1: 066bdaf6b29692c7e3a559df27f8924b0ea4b512 SHA-256: 76f582b81b9a754ad0e3038fc0858b38d1fcbb4d4f20721d87deae01fb730b78

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 http://netcdn.tw/app/406889139/coin-master-70-spin-link-today-game-hack PDF link annotation
- https://ourlady-elearning.com/userfiles/files/roblox-free-akatsuki-shirt_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/make-robux_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/new-cheat-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/minecraft-hack-app_GM479516143.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/roblox-free-download_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/free-robux-mod_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/roblox-vehicle-simulater-hacks_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/how-to-make-free-robux_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/how-to-get-free-clothes-on-roblox-2021-no-bc_GM431946152.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/coin-master-free-cards-and-spin-link_GM406889139.pdfIn PDF document text
- https://ourlady-elearning.com/userfiles/files/original-roblox_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_002_off00003218.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3218	23188 bytes
SHA-256: `d5f85e2dd7f72c6fa9c1242c6e79b68e01b0647cd5b570f66dbdacfd9c2b40db`
`font_01_sfnt_off00006688.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6688	18764 bytes
SHA-256: `4fa46c54e4e6df46386589314325ac4b3db1a8a5ca68877220378a444f7326f6`

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