Malicious PDF — malware analysis report

Static analysis result for SHA-256 24eb8a8c4ce7017a…

MALICIOUS

PDF

32.8 KB Created: 2021-07-19 15:12:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 3dd167a72b61d453947baf343fa20592 SHA-1: 046b9c9f23a753cffc1501c3814c7a2d0e919335 SHA-256: 24eb8a8c4ce7017a0f8ce550ccf12a56a5bbfb69d869cabb49c77b19e44e9cf5
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/835599320/tiktok-likes-free-game-hack PDF link annotation
    • http://badboybiteaway.de/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://badboybiteaway.de/images/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • http://badboybiteaway.de/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://badboybiteaway.de/images/free-tiktok-likes-no-human-verification-or-download_GM835599320.pdfIn PDF document text
    • http://badboybiteaway.de/images/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • http://badboybiteaway.de/images/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://badboybiteaway.de/images/minecraft-pc-free_GM479516143.pdfIn PDF document text
    • http://badboybiteaway.de/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • http://badboybiteaway.de/images/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://badboybiteaway.de/images/free-tiktok-fans-no-verification_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_off00002e15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E15 22744 bytes
SHA-256: d58c71647319e1132977e62358ca5519a2f29384dbcc22ef16795d9d9d8ec022
font_01_sfnt_off000060af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60AF 17456 bytes
SHA-256: 6bc07a916d4e04dd857b15fc22f6a85a1633f574b63a4730ea8dc15634c660b5