Malicious PDF — malware analysis report

Static analysis result for SHA-256 02914e676026d35a…

MALICIOUS

PDF

34.1 KB Created: 2021-06-17 20:11:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f85738aeed49e23a9d3b39593ea1ed31 SHA-1: 23974993c5287c2991ed48547f5e6699fcf87e42 SHA-256: 02914e676026d35a2ff214d4e468975576d01c80e1bc9e46b3db74b889afe109
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, explicitly luring the user with promises of 'free Robux' and game hacks. The primary link, http://netcdn.co/app/431946152/how-to-get-free-robux-fast-no-waiting-game-hack, is identified as a redirector for a game hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt, likely leading to a malicious download or further compromise.

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/how-to-get-free-robux-fast-no-waiting-game-hack PDF link annotation
    • http://zercalo.org/images/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdfIn PDF document text
    • http://zercalo.org/images/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/how-to-hack-roblox-highschool-money_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/free-roblox-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/hightlighter-player-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/free-robux-master_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://zercalo.org/images/minecraft-free-download-laptop_GM479516143.pdfIn PDF document text
    • http://zercalo.org/images/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://zercalo.org/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://zercalo.org/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/tiktok-free-view-iphone-6s_GM835599320.pdfIn PDF document text
    • http://zercalo.org/images/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • http://zercalo.org/images/how-to-advance-roblox-hair-for-free_GM431946152.pdfIn PDF document text
    • http://zercalo.org/images/free-minecraft-server-hosting_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.

FilenameKindSourceSize
font_00_sfnt_off00002e51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E51 22228 bytes
SHA-256: 4c6cb35fefccebf25d935520d8c53f6a92ff61630f7135ed096f7b2dbcd99a59
font_01_sfnt_off00005fc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC2 19116 bytes
SHA-256: f69c6a432bd931b02a955fd9db0e43086a9b84fcb9229577adb63b64a955d137

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