PDF malware analysis — malicious · ab6c7105bbcfd138

MALICIOUS

PDF

41.4 KB Created: 2021-05-15 02:01:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 012ab65b131d2cd3626b3af08358357b SHA-1: 1783541a127b7c2935d8c159e09675c68cba7908 SHA-256: ab6c7105bbcfd13833439ae513010c1838902e71f927ed23f2aec54293339b60

122 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a fake-CAPTCHA lure. 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 5

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.
Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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-free-cards-link-2021-game-hack PDF link annotation
- http://hometech.tw/ckfinder/userfiles/files/hack-coin-master-32-mod-apk_GM406889139.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/coinmasterfreespinlink_GM406889139.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/coin-master-hack-mod-apk-download_GM406889139.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/how-to-get-free-minecraft-coins_GM479516143.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/rbx-robux_GM431946152.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/roblox-money-hack_GM431946152.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/2021-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/free-robux-no-download_GM431946152.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/www-cheatsk-com-coin-master-hack_GM406889139.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/coin-master-hack-app-2021-download_GM406889139.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/robux-today_GM431946152.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/free-robux-clothes_GM431946152.pdfIn PDF document text
- http://hometech.tw/ckfinder/userfiles/files/como-hackear-coin-master-gratis_GM406889139.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_off00004786.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4786	24648 bytes
SHA-256: `ca48d653e371f1cb8eb74eceda2a00035bae0aa0b8dd4e47f7b13ffc56ab4425`
`font_01_sfnt_off00007eb4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7EB4	18456 bytes
SHA-256: `b51790488d60a3c79421cfddad0a6ae9f074b26b8d27a704dda1d2d7bad48ec0`

Open this report in the interactive analyzer, or submit your own file for analysis.