Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d559abf7b72c148…

MALICIOUS

PDF

37.9 KB Created: 2021-06-28 18:25:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 93a51ecdd8adc409e4d912f330a8f5a7 SHA-1: 51ef42bf43b7cd2b696c8eef11ec655c42c4745e SHA-256: 3d559abf7b72c148556eb56329eece50cffe713f5f98eae321fdbc1dbe017d5b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks, specifically for Roblox, directing users to a malicious URL. The ML classifier strongly indicates maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a social engineering tactic to redirect users to potentially malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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-android-hack-mod-game-hack PDF link annotation
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/roblox-unlimited-health-hack_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-robux-hack-youtube-pc_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/descargar-roblox-hack-para-android_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/cheats-to-roblox-for-money_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-online-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-chromebook-exclusive-roblox-item_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/how-to-hack-super-jump-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021-glitch_GM406889139.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/coin-master-hack-app-android_GM406889139.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-a-ipad-2021_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.manicp.sch.id/__statics/gudangsoal/files/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off00003cb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3CB1 22672 bytes
SHA-256: cd947d9475c95419d49930e264b4686fc9c15327e1341e2bb4c355e1bb32f26d
font_01_sfnt_off00006f3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F3F 19144 bytes
SHA-256: 3a9a1c307e11d6b954eafedb6ce777770156366e8f6595189380a1df63b57d2a

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