PDF malware analysis — malicious · 9d5dec98b1431a51

MALICIOUS

PDF

35.2 KB Created: 2021-06-25 05:01:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 2916c46c5d11807187f6f948dacdfc9a SHA-1: 7a0802ec3b3222e8026232bd3429d31f8c5d1b60 SHA-256: 9d5dec98b1431a515f42db98294eb92bdb4885588ddfea9ba6e74eeed4575d8c

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/all-free-xbox-roblox-skins-game-hack PDF link annotation
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/roblox-hacking-vpn_GM431946152.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/free-roblox-dispenser_GM431946152.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/coin-master-links-for-today_GM406889139.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-gratis_GM406889139.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/treasure-hunrt-simulator-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/minecraft-world-free-download_GM479516143.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/earn-points-for-robux_GM431946152.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/make-free-robux_GM431946152.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/free-minecraft-com_GM479516143.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/roblox-park-free_GM431946152.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/free-robux-facebook_GM431946152.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/coin-master-download-hack-ios_GM406889139.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-and-obc-pastebin_GM431946152.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
- https://www.beritabali.com/new/public/ckfinder/userfiles/files/www-rbx-com_GM431946152.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_off0000352d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x352D	21768 bytes
SHA-256: `31a6444572c3de2ec4929fa815830c520d4667a8d3db0e9127cc7c7a41e00be4`
`font_01_sfnt_off00006533.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6533	18940 bytes
SHA-256: `16963767a8c67c05e8f04d9e81a5572f20efd72e90f9c6d7629854c7dd4d02ab`

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