Malicious PDF — malware analysis report

Static analysis result for SHA-256 420125e9e82df5f3…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 03:53:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: dc8e261a952d75d7058218e7a23bb2b0 SHA-1: aadfd375215a15d38c7465f9722c5d5d5b147c98 SHA-256: 420125e9e82df5f36b109f8a17fc9b6b8084ddc9f8b4bf7b32d6736ff11b903f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a high-confidence heuristic firing for a game hack lure, directing users to a suspicious URL. The document body and embedded URLs reinforce this lure by mentioning game hacks and cheats. This suggests the document is designed to trick users into visiting a malicious site, likely to download further malware or engage in other malicious activities.

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/431946152/roblox-cheat-codes-game-hack PDF link annotation
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/free-roblox-cards-2021_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/roblox-free-robux-event_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/the-rake-roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/how-to-free-catalog-items-in-roblox-no-copy_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/cheat-roblox-menu-download_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/which-group-has-free-admin-and-vip-on-roblox_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/descargar-hack-phantom-forces-roblox_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/roblox-html-hack_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/free-vip-server-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/cheat-engine-closes-roblox_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/free-robux-free-to-pay-or-codes_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/how-to-hack-roblox-for-admin-commands_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id//repository/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://digilib-akuntansi.stkip-pgri-sumbar.ac.id/repository/how-to-hack-roblox-on-android_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_off000030ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30AB 22808 bytes
SHA-256: e105312f0c9f696ea46448e5413e95f34a6d1126c5b39025d08bea9a1727ed1b
font_01_sfnt_off00006371.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6371 18932 bytes
SHA-256: a95ed2ebfaa41175af61b40c976dd9a66f12315416a1f48c3ae7e56a22336851

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