Malicious PDF — malware analysis report

Static analysis result for SHA-256 743f64217acce050…

MALICIOUS

PDF

34.9 KB Created: 2021-06-19 21:34:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9cb3ef11287fc09dd6440681cabd76ce SHA-1: 09eebd957e2dc41b6bcefdeb2f7c9d61f92ed61b SHA-256: 743f64217acce050c9814655e0230ca635f44f91ad1e7a3ecde575c41196e67b
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-in-roblox-2021-game-hack PDF link annotation
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/minecraft-marketplace-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-free-attack-link_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/free-roblox-shading_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-iphone_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-hack-september-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/tiktok-free-without-downloading_GM835599320.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
    • http://elearning.mtsn1bandung.sch.id/__statics/gudangsoal/files/what-tiktok-free-like_GM835599320.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_off00003125.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3125 22268 bytes
SHA-256: e0733e271083f3c52486a6756238e96a06a86cd99154578c0f3be6dded91fbf6
font_01_sfnt_off000062a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A3 19224 bytes
SHA-256: 19fbb3d2a48e2929f502713a046198cfd603542f55de5b50443dfa872ae97908

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