PDF malware analysis — malicious · 15648008eac1e400

MALICIOUS

PDF

35.7 KB Created: 2021-06-18 15:37:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: ab613faed83d3db40e0d069829a8c232 SHA-1: 4a23ced358afd13e0cfd78116ab13e42c4c26609 SHA-256: 15648008eac1e40041687f4c8590ef24a708fe8aeecf713d0ba9c357b3ddd842

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/evil-hacker-game-roblox-game-hack PDF link annotation
- https://www.knjiznica-oroslavje.hr/files/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/pubg-uc-uk_GM1330123889.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/coin-master-mod-version-free-download-ios_GM406889139.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/free-robux-games_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/free-robux-no-survey-no-download-2021_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/spin-coin_GM406889139.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/fake-robux-codes_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/www-free-robux-com_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/coin-master-free-coins-and-spins-today_GM406889139.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/roblox-com-games-referrer-roblox-player_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/free-coins-coin-master-hack_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_off00003221.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3221	23020 bytes
SHA-256: `c8309f481a4bf1341a5283ac248c7964f500e47c48d1a208206ae3fade48b938`
`font_01_sfnt_off00006617.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6617	19148 bytes
SHA-256: `ccd73bbe1b558899a59c6d411cee9862fd33bf87a8e40a4204ccd6f9b4f8289f`

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