PDF malware analysis — malicious · c1986a4a8370fe53

MALICIOUS

PDF

35.1 KB Created: 2021-06-25 04:48:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: bcdfa6945cd94b44aa3df4cf8a533afc SHA-1: 1d07e4af04186546b02243fa31b18de122521c39 SHA-256: c1986a4a8370fe536d4e35b04378ed2ba20754a4aea5b1c636066f2c1548116a

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/como-hackear-en-roblox-a-la-gente-game-hack PDF link annotation
- http://berntfoto.dk/images/free-robux-master_GM431946152.pdfIn PDF document text
- http://berntfoto.dk/images/roblox-password-hacker_GM431946152.pdfIn PDF document text
- http://berntfoto.dk/images/free-robux-quiz_GM431946152.pdfIn PDF document text
- http://berntfoto.dk/images/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://berntfoto.dk/images/wurst-112_GM479516143.pdfIn PDF document text
- http://berntfoto.dk/images/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdfIn PDF document text
- http://berntfoto.dk/images/where-to-find-free-items-on-roblox_GM431946152.pdfIn PDF document text
- http://berntfoto.dk/images/aves-magic-academy-hack-roblox_GM431946152.pdfIn PDF document text
- http://berntfoto.dk/images/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
- http://berntfoto.dk/images/roblox-robux-generator_GM431946152.pdfIn PDF document text
- http://berntfoto.dk/images/minecraft-hack-download_GM479516143.pdfIn PDF document text
- http://berntfoto.dk/images/donttazemebro-roblox-person-hes-a-hacker_GM431946152.pdfIn PDF document text
- http://berntfoto.dk/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
- http://berntfoto.dk/images/minecraft-cheats-switch_GM479516143.pdfIn PDF document text
- http://berntfoto.dk/images/how-to-use-redstone_GM479516143.pdfIn PDF document text
- http://berntfoto.dk/images/coin-master-bonus_GM406889139.pdfIn PDF document text
- http://berntfoto.dk/images/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
- http://berntfoto.dk/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- http://berntfoto.dk/images/free-online-minecraft-server_GM479516143.pdfIn PDF document text
- http://berntfoto.dk/images/roblox-btool-hack-ultmate_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_off00003111.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3111	22616 bytes
SHA-256: `512807506c54d21996d240b1530c6d21052b161e870c9cbc28255bedf2bc6c50`
`font_01_sfnt_off00006401.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6401	19020 bytes
SHA-256: `db0b6030b190e9db549b1b2b53d097c63ec6398faac78b840899764b4ab52186`

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