Malicious PDF — malware analysis report

Static analysis result for SHA-256 68bcafb98c1c8055…

MALICIOUS

PDF

32.3 KB Created: 2021-08-01 03:06:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 8a7975b8ce055adc212929c5edac2a21 SHA-1: 1dd7eda8e5ea9b50840ec9733e4dbabf8a9e04fd SHA-256: 68bcafb98c1c8055a860edd36704e4daf4917c8c39f4e35bdbd46cac6b7154f2
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 0.9900

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/how-you-get-free-robux-game-hack PDF link annotation
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/www-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://elearning.min11blitar.sch.id/__statics/gudangsoal/files/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://elearning.min11blitar.sch.id/__statics/gudangsoal/files/minecraft-java-free_GM479516143.pdfIn PDF document text
    • https://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • https://elearning.min11blitar.sch.id/__statics/gudangsoal/files/free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://elearning.min11blitar.sch.id/__statics/gudangsoal/files/minecraft-hack-download_GM479516143.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_off00002adc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADC 21860 bytes
SHA-256: b45b3152e453ea834df867172f7858ca02070d615691d679c6ec9e549635ae1e
font_01_sfnt_off00005b06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B06 18628 bytes
SHA-256: 2cef95c660e858a81ae37e04a3622e2f2e00aaafcd74508675f1d6c6ac03f058

Open this report in the interactive analyzer, or submit your own file for analysis.