PDF malware analysis — malicious · cfd6ac971d74fd22

MALICIOUS

PDF

50.2 KB Created: 2021-06-09 17:42:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: c0e5b5c35264f6eced555c57af6f7e1b SHA-1: 809773cebe5f37e8e38b0bddf3b843f95b417326 SHA-256: cfd6ac971d74fd2203d2e94901f1944296b614071258ec747c54d950c73e7fec

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 0.9789

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.tw/app/431946152/is-there-any-free-way-to-get-robux-game-hack PDF link annotation
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/vpn-for-roblox-free_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/how-to-hack-admin-roblox-dll_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/minecraft-bedrock-download_GM479516143.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/pubg-uc-zing_GM1330123889.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/minecraft-education-edition-free-download_GM479516143.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/coin-master-free-gifts_GM406889139.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/coin-master-hack-ios-reddit_GM406889139.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/roblox-gang_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/free-spin-and-coin-blogspot-com_GM406889139.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/coin-master-links-for-today_GM406889139.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-link-ios_GM406889139.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
- http://www.lorengntt.com/new/public/ckfinder/userfiles/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00005384.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5384	29272 bytes
SHA-256: `20615bde00757f26f3b6ce7adcf95c7d3f713009683d9d975ebea5522e023ce9`
`font_01_sfnt_off00009615.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9615	2824 bytes
SHA-256: `bd082aa73fbb1a8b3bd2e5c998d3d8e31d1dfc71ea36f846af746f69a0d2ab7f`
`font_02_sfnt_off00009fc8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9FC8	18892 bytes
SHA-256: `87f2d8ac712cdb60293fd437de8534317ab9f631cbaa68fadf4f99c4aeb545c1`

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