Malicious PDF — malware analysis report

Static analysis result for SHA-256 e76f53298a35dd07…

MALICIOUS

PDF

35.2 KB Created: 2021-07-02 03:25:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: b9b8543967967565087d77fa7590a725 SHA-1: 9f0681d8df928e0fd0e5ea222e9ed534b9c6b77d SHA-256: e76f53298a35dd07a3c0aa971f7c3a7c161730a19c21f12b84bbb8d90ede3b8e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and references to game hacks and free in-game currency for popular games like Roblox and Minecraft. The primary URL, http://netcdn.co/app/431946152/roblox-vamprire-hunters-2-wall-hack-download-game-hack, is flagged as a redirector for game hacks. While no scripts were explicitly extracted, the document's structure and embedded URLs strongly suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

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/roblox-vamprire-hunters-2-wall-hack-download-game-hack PDF link annotation
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/how-to-get-hair-free-roblox-2021_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/things-that-are-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/roblox-free-draw-2_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/how-to-get-a-free-minecraft-server_GM479516143.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/hack-robux-sans-verification-humaine_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/roblox-e-free_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/coin-master-hack-extension_GM406889139.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • https://learn.mtsntaput.sch.id/__statics/gudangsoal/files/criminal-vs-swat-money-roblox-hacks_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_off00003143.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3143 21524 bytes
SHA-256: 3b833c242177218bef95fe05a73fb71875f936dc15c507ab6e205cebda2c6fda
font_01_sfnt_off00006016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6016 20416 bytes
SHA-256: 48c8dc4a0d2086970e17d7f6168aaec2f1a49504930b6572d5ca5946c0ece9f1

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