Malicious PDF — malware analysis report

Static analysis result for SHA-256 483e006ddfcde582…

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 00:51:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e661ec529c3542ce19dab2e3bff29e51 SHA-1: d6d225672ac3fb69ad2eae1940f84ba04c37326f SHA-256: 483e006ddfcde582d7cb5b918ec546cfacf97f459f167d2b1651a7a9da5461ec
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.tw/app/431946152/huskybuckscom-free-robux-game-hack PDF link annotation
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/roblox-how-to-get-free-pet_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/apk-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/www-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/master-game_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/free-catalogs-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-on-skywars_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/infinite-col-hack-sao-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/all-the-free-hair-in-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/free-robux-get-com_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnwaikabubak.sch.id/__statics/gudangsoal/files/spin-free-coin-master_GM406889139.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_off0000315f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x315F 22308 bytes
SHA-256: 9f263df387050cc591677a43104be0f674d29b6f90cb5ea47ba2bbf1f5030a88
font_01_sfnt_off00006241.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6241 19324 bytes
SHA-256: fa71a02eff7d38361fd0194e941a22015f12e2817721f9ddba48d3de862e217b

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