Malicious PDF — malware analysis report

Static analysis result for SHA-256 e293f3bb07322561…

MALICIOUS

PDF

34.2 KB Created: 2021-06-18 15:35:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 687c368ba3da4b6a69f9e779d3dcbac8 SHA-1: 94cfce6ea395437414ab787e3883a887ecf681bf SHA-256: e293f3bb07322561edf7bbbe0a34b3c1df6996b2620b564bc13c420ac0d833ff
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure, promising game hacks and free currency for popular games like Roblox and Coin Master. The document body and heuristics indicate it contains links to external URLs that likely host further malicious content or phishing pages. The ML classifier strongly flagged this PDF as malicious, supporting the observed lure and embedded URLs.

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.co/app/431946152/what-to-do-if-you-get-hacked-on-roblox-game-hack PDF link annotation
    • https://sensorcamera-tw.com/upload/files/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/generator-free-robux-facil_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-robux-accounts_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/coin-master-firebird-card-free_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/hack-coin-master-spin-android_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-roblox-premium_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/comment-hacker-bird-simulator-dans-roblox_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/coin-master-free-spins-apple_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/free-robux-codes-2021-march_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/how-to-use-wurst_GM479516143.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://sensorcamera-tw.com/upload/files/how-to-hack-roblox-to-grt-robux-the-easy-way_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.

FilenameKindSourceSize
font_00_sfnt_off0000303e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x303E 21236 bytes
SHA-256: 02df93cb7704d67475e11a21b9651ee4b65f0c5e6dbbfcab1a63ef22d0860b61
font_01_sfnt_off00005e70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E70 19768 bytes
SHA-256: 276187af20e1cbc1c9bdf6c2ff8f7c7a40407bab0300f97006d80bff5588e53c

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