PDF malware analysis — malicious · b4e98e8ab8210156

MALICIOUS

PDF

44.0 KB Created: 2021-06-03 15:03:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 114eb9f636b0b606c6cd0fe75ecb52e3 SHA-1: b2cbcf1eba69df3eea68214a8e9fcd5342bdf820 SHA-256: b4e98e8ab82101569b947af17c8298311de7dcc15ee8d15e4a55c8aed846562a

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 0.9865

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.online/app/431946152/roblox-free-robux-website-game-hack PDF link annotation
- https://www.jcn.co.uk/uploads/files/files/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-quiz_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-money-hack_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-claim-spins_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/hack-para-coin-master-sin-verification_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/rblx-city-free-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-free-cards-link-2021-today_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-gift-hack_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/robux-survey_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/roblox-inappropriate_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-heaven-free-daily-spins_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/www-rbxhut-com_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-earn_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-hack-coin-master-apple_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
`stream_004_off00004f63.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4F63	24664 bytes
SHA-256: `b85d583c81e7e4099286dafea0b344f74d9d7ba3d66a3b29e1eb85b69ab6898a`
`font_01_sfnt_off00008884.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8884	18508 bytes
SHA-256: `fbcd203c7e924a0ebec4ef4aa0eb55ec8b14d1abcc2767c4f5d3ad1ccc86f8e3`

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