PDF malware analysis — malicious · 1fd419f5ea048336

MALICIOUS

PDF

35.3 KB Created: 2021-07-06 01:32:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 336365f06d2bf4a1bde8a04d2462188b SHA-1: 82eaea96864f3ebf3c834aafb1a9c4023592541d SHA-256: 1fd419f5ea048336bf22de51c6c3c8a2e950a3dc872f1f50746351e18007bb63

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/hack-xp-net-generators-coin-master-game-hack PDF link annotation
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/pokemon-go-free-quest-guide_GM1094591345.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/free-roblox-wings_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/free-coin-master-spins-link-facebook_GM406889139.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/open-coin-master_GM406889139.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/will-they-cheat-roblox-thumbnail_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/roblox-lumbertycoon-2-grief-hack_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/http-appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/how-to-get-2021-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/claim-free-robux_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/cm-spin-link_GM406889139.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/free-spins-coin-master-links-app_GM406889139.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/can-i-get-free-robux_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/best-free-script-injector-for-roblox_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/roblox-cheats-pris_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
`font_00_sfnt_off00003337.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3337	22988 bytes
SHA-256: `68edb0a10c9c21b5c471c3a13583e0070955a2192b4f4fcd292f75d9746a5c54`
`font_01_sfnt_off000066b4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66B4	18408 bytes
SHA-256: `9c410735b51a2e3c906831442b110e3f3cb7b87dd1c8ef2781f0d99b993f1dea`

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