PDF malware analysis — malicious · 1d2c4fc6ed1f9868

MALICIOUS

PDF

42.3 KB Created: 2021-05-14 13:40:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: af8d97b80a0e0e3d0e73386a22835507 SHA-1: 2867c467818b173c91cec1bdf0d774a1daa50a8d SHA-256: 1d2c4fc6ed1f986871f0e50d2b47ab0453ee8e2fb0c5e98c0d6d2442b1686ecb

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 0.9971

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.xyz/app/406889139/coin-master-hack-without-verification-for-iphone-game-hack PDF link annotation
- https://radiocaxias.com.br/portal/imagens/files/free-download-coin-master_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-roblox-money_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-free-robux_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/master-coin-free-link_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-hack-root_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-spin-blogspot_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-villages_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-100-spin-hack_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-daily-gift-free-spins-and-coins-link_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_off00004b14.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4B14	24212 bytes
SHA-256: `7eab42c2a775c62c63651e769d4b1f80a60607b521ce10c6d6ba6efce31ea11e`
`font_01_sfnt_off0000820b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x820B	18696 bytes
SHA-256: `b0c3a89d711ec100aafe578ee7b28ea2727b66157cc397f5079d3cb8995e9fec`

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