PDF malware analysis — malicious · 985f9226c06d5826

MALICIOUS

PDF

43.9 KB Created: 2021-05-11 13:32:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: f9975bf16755d1d91e1a54673eda45b8 SHA-1: c3cadd53c48f8661cfa94e24602d3e2b88f8ceb4 SHA-256: 985f9226c06d5826221c6b716a43b004778e05ec825fa442e2736d76a672d7ec

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 0.9969

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/431946152/free-roblox-money-game-hack PDF link annotation
- https://radiocaxias.com.br/portal/imagens/files/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/girl-roblox-avatar_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/roblox-cheat-robux_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-free-spins-usa-2021_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/mcpe-free-download_GM479516143.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-game-hack_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-robux-site_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/how-to-get-free-hair-in-roblox_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-2021_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-bedrock-minecraft_GM479516143.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/best-way-to-get-robux_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-25-spins-coin-master-links_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_003_off00004c37.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C37	26632 bytes
SHA-256: `2b7f0cf29784ac6501f060687230ec4eabe3c425376e8febe1b688ab8afa66da`
`font_01_sfnt_off00008931.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8931	18324 bytes
SHA-256: `592c86f68d7cfce1f91e7ace661462f05e7807c87c96d21e42ea748452481f78`

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