PDF malware analysis — malicious · 32990fbc775ed8a9

MALICIOUS

PDF

42.3 KB Created: 2021-05-12 23:20:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: a0031769258e5d3547986044a8fa6c22 SHA-1: 17442965274f402bad7c20c9376a88172ec1a9be SHA-256: 32990fbc775ed8a9b9030b90a98965a87ecea17cb10febccf2e375e0ded1b7c4

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 0.9971

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/406889139/coin-master-attack-hack-apk-game-hack PDF link annotation
- http://bibliotheque-perrigny-les-dijon.fr/images/free-roblox-printables_GM431946152.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-coin-hack_GM406889139.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/how-many-free-spin-links-is-there-for-coin-master_GM406889139.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/minecraft-fly-hack_GM479516143.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-apk_GM406889139.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/how-to-get-free-clothing-on-roblox_GM431946152.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/coin-master-hack-apk_GM406889139.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- http://bibliotheque-perrigny-les-dijon.fr/images/how-to-get-free-robux-without-email_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_003_off00004bfc.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BFC	24456 bytes
SHA-256: `806fa64398e62e6375c2071fe350b5ff67ece0e7d34aed72281a90a3105467b1`
`font_01_sfnt_off00008415.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8415	17892 bytes
SHA-256: `e6840f3bb6a03ec6cfdeee84f4ec8c5107362a4db383bde52e6abc5845af31eb`

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