PDF malware analysis — malicious · fb56d24fa33ac0db

MALICIOUS

PDF

42.0 KB Created: 2021-05-19 21:14:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: b2f38a1c5218a228e0be17af5b627be6 SHA-1: a2ce0ee485c84fc8ada2a1421e95f30f75ff2eed SHA-256: fb56d24fa33ac0dbd12b20d0f18a02ee62fa43ee9a89f02ebf52f12cc13a24c6

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/431946152/how-to-get-free-robux-games-game-hack PDF link annotation
- https://radiocaxias.com.br/portal/imagens/files/minecraft-pe-texture-packs-free-download_GM479516143.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-vip-roblox_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-coin-master-spin-daily-link_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-free-spin-generator-without-human-verification_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/robux-sites_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-robux-scam_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/i-robux_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-robux-no-verification-no-survey_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/free-unlimited-coin-master-online-tool_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-offline-hack_GM406889139.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/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-coins-on-coin-master-generator_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
- https://radiocaxias.com.br/portal/imagens/files/how-to-download-minecraft-for-free-ios_GM479516143.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_off00004970.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4970	24224 bytes
SHA-256: `e24b59d2850a0724df78f36025d8ae69e679e475817625bec9713cfe2b1f28da`
`font_01_sfnt_off0000803b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x803B	18768 bytes
SHA-256: `f0658a260a8345a08039bbf50682235c712e1d6bfd9b3eebd82ad720f29012b5`

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