PDF malware analysis — malicious · 2344228adcd68eb5

MALICIOUS

PDF

34.6 KB Created: 2021-07-09 17:41:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 1d6e9c4b13e1def7962704f657e30924 SHA-1: bc594297b9366a60c54ab67be938b751f26f8718 SHA-256: 2344228adcd68eb55f5eed3809ef4b5714edd501f97b0bf43f604b50be910d36

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.tw/app/431946152/1x1x1x1-roblox-id-game-hack PDF link annotation
- http://studio-dentistico-fiume.com/files/roblox-admin-hack_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/free-roblox-account-premium-generator_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/best-way-to-get-free-robux-legal_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/coin-coin-master-hack_GM406889139.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/roblox-hacked-by-blueroes_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/mcpe-master-coin-hack-apk_GM406889139.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/free-free-robux_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/roblox-free-download-for-windows-7_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/apk-coin-master-hack_GM406889139.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/roblox-free-items-november-2021_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/how-to-get-free-robux-without-waiting-now_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/hack-coin-master-spin_GM406889139.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/free-roblox-outfits_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/free-robux-hacker-us_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_off00003130.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3130	22380 bytes
SHA-256: `c6a676dafa885e98614ff051a36812a2be4d749294f48f84db36644d8f2763c2`
`font_01_sfnt_off000062d1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62D1	18764 bytes
SHA-256: `e4cd91370658347443fe20d6cc0131f890cc3df20eb053f5ab6d3aa11c6054c7`

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