PDF malware analysis — malicious · fac80a813a839461

MALICIOUS

PDF

36.0 KB Created: 2021-06-29 08:47:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 9ced1d079cf55ec21d76324a0aff5165 SHA-1: 15f48ccb0fbd4b1b2b22f58bea13027122bf2f65 SHA-256: fac80a813a839461149751fdd59fa988e0a21da9e91f71ef436876dfef50b609

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.co/app/431946152/how-to-get-free-robux-on-macbook-air-2021-game-hack PDF link annotation
- https://www.dc-itsolutions.com/userfiles/files/bucks-rewards-free-robux_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/can-you-really-hack-coin-master_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/how-do-you-hack-for-2021000-coins-on-flip-master_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/roblox-hack-download_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/master-coin-hack-game_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/coin-master-coins_GM406889139.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/how-to-get-free-coins-in-skywars-roblox_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-robux-com-real_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-online-photo-shop-for-roblox_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/minecraft-free-install_GM479516143.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/what-is-e-free-roblox_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/roblox-help-someone-hacked-me_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.dc-itsolutions.com/userfiles/files/free-spins-and-coins-coin-master_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
`font_00_sfnt_off00003367.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3367	22352 bytes
SHA-256: `a41fac82214d78d27accb56c7ad6f2e6297152020e423a202e0b6715413c90c6`
`font_01_sfnt_off0000651d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x651D	19872 bytes
SHA-256: `c219e6bfebd997342b7c432413f93414ac8eb2fc93b85549b35a749174fe593c`

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