PDF malware analysis — malicious · 0afe55f078194d8e

MALICIOUS

PDF

40.0 KB Created: 2021-05-19 16:02:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: d28cb29864c0b7d1fd811b461b1a76d1 SHA-1: 2fb0d2a39846d2aab2381db6e8b04a10042313cf SHA-256: 0afe55f078194d8e8f9c8b56ad014b71712ab4aa8037f7416836efc3c6f6c8b1

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/835599320/free-tiktok-likes-75-game-hack PDF link annotation
- http://medinup.pt/images/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
- http://medinup.pt/images/free-robux-please_GM431946152.pdfIn PDF document text
- http://medinup.pt/images/op-rewards-free-robux_GM431946152.pdfIn PDF document text
- http://medinup.pt/images/free-roblox-shirts-templates_GM431946152.pdfIn PDF document text
- http://medinup.pt/images/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://medinup.pt/images/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://medinup.pt/images/hack-version-of-coin-master_GM406889139.pdfIn PDF document text
- http://medinup.pt/images/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
- http://medinup.pt/images/coin-master-100-spin_GM406889139.pdfIn PDF document text
- http://medinup.pt/images/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
- http://medinup.pt/images/free-robux-giveaway_GM431946152.pdfIn PDF document text
- http://medinup.pt/images/roblox-hack-game_GM431946152.pdfIn PDF document text
- http://medinup.pt/images/minecraft-free-download-pc_GM479516143.pdfIn PDF document text
- http://medinup.pt/images/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
- http://medinup.pt/images/roblox-hack-generator_GM431946152.pdfIn PDF document text
- http://medinup.pt/images/free-minecraft-client_GM479516143.pdfIn PDF document text
- http://medinup.pt/images/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
- http://medinup.pt/images/coin-master-hack-tool-v1-9-pc_GM406889139.pdfIn PDF document text
- http://medinup.pt/images/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
- http://medinup.pt/images/free-robux-generator-no-verification_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
`stream_003_off000044ab.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x44AB	24624 bytes
SHA-256: `1b0af11d276283d32024ef1305f23c3b037b0c7feaf7fa0d790ecfa107097f51`
`font_01_sfnt_off00007b81.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B81	17644 bytes
SHA-256: `d4f7d5a44b15da4e8b6fb64607eb2e0cd05fb035f165f52e1e9604a9654c20cb`

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