Malicious PDF — malware analysis report

Static analysis result for SHA-256 da2e54b6cc173fb5…

MALICIOUS

PDF

36.3 KB Created: 2021-07-01 08:35:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5d1a1cb5fef0d1dc198eeceb28c8a57e SHA-1: 18fb1c06cd79a284c2de20bb128f682da12068a0 SHA-256: da2e54b6cc173fb572762c9b80b8ba57082ddf0582e06ecb37baa5621e84d1b0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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-hack-roblox-booga-booga-on-ipad-game-hack PDF link annotation
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/bux-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/hack-roblox-account-kali-linux_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/free-robux-link_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/free-robux-using-lucky-patcher_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/robux-free-online_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/chat-uncensor-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/free-robux-discord_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/best-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/cheat-vehicle-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/roblox-stands-online-cheats_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/roblox-free-codes-for-items_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/aether-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/roblox-printables-free_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/admin-hack-roblox-espaol_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • https://elearningma.ypi-islamiyah.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-games_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_off000034cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34CB 23236 bytes
SHA-256: 450bb21ab2efd82ee193794cbc8874600fa51e117b5ad45e990b0c288f38e6f7
font_01_sfnt_off00006851.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6851 19168 bytes
SHA-256: f82986ad53d9e3f9083d573120b178c1af12c8e9018f08848fac626c700fbf0c

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