Malicious PDF — malware analysis report

Static analysis result for SHA-256 896a812719760b06…

MALICIOUS

PDF

34.2 KB Created: 2021-07-04 23:53:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a3ecac3a61f22bc5c7e6a5afe5fc0eff SHA-1: 8f9f2cb6088e75be5e34e6dda8df3a27b0809cde SHA-256: 896a812719760b06a27fd85b337222c224bce73c1f0900b41ea0acc148e5e802
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/406889139/coin-master-hack-version-download-2021-game-hack PDF link annotation
    • https://sensorcamera-tw.com/upload/files/roblox-hack-sahrbite_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/play-roblox-free-online_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/avatar-roblox-game_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/roblox-digimon-aurity-hack_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-cash-script-ultimate-driving-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/how-to-get-free-wings-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/hack-tool-for-any-game-on-roblox_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/views-for-tiktok-free_GM835599320.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/how-to-hack-linkmon99-roblox-account_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/real-robux-generator_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/hack-roblox-accounts-with-cookie-editor_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/give-away-game-in-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/may-11-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002e1c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2E1C 22552 bytes
SHA-256: 318a32dbf77eff136bc8e21e826060f0ea8f06fd78c87fdf345736a65ab92015
font_01_sfnt_off0000605f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x605F 19120 bytes
SHA-256: 2ea2afe9e081bdd44df22ed75a54934936891e6a54f97891af8bf9d1e5be000a

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