PDF malware analysis — malicious · c7264bc191c6feef

MALICIOUS

PDF

36.3 KB Created: 2021-07-03 13:11:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 528422837a485525ed0742ed90676126 SHA-1: 9127eaa78f4bd1e30ab398d87501b94e2aded49a SHA-256: c7264bc191c6feef6c88ba7d63aec620298b8d32d4997a99fe64f9b967ad7f9f

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/link-for-free-spins-on-coin-master-game-hack PDF link annotation
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/free-coins--spins-coin-master_GM406889139.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/robux-hack-tools_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/roblox-nation-com-hack_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/roblox-promo-codes-december-2021-free-robux_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/free-robux-kids-hack_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/coin-master-free-spin-and-coin_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/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/free-minecraft-generator_GM479516143.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/hack-to-upgrade-pets-in-ninja-legends-roblox_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/free-roblox-exploit-trial_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/hacked-case-clicker-roblox_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/cute-free-roblox-outfits_GM431946152.pdfIn PDF document text
- https://daquagro.id/assets/vendor/ckfinder/userfiles/files/free-tiktok-followers-without-verification_GM835599320.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_off0000362e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x362E	23352 bytes
SHA-256: `5d5489f21a4e9f2a850d3b89a00fe4178b0c423c6b4aa1258b332e443443d592`
`font_01_sfnt_off00006b1b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B1B	18344 bytes
SHA-256: `f56b0ea85f0f4ceaa4b3226630b5e27c33b435ed9466ab3582cda34df5208c0a`

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