Malicious PDF — malware analysis report

Static analysis result for SHA-256 63194dfc86067a61…

MALICIOUS

PDF

36.1 KB Created: 2021-06-19 20:01:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 28785d37d0737bd52479c4c013bb4809 SHA-1: 2a0bec3684e61bf7d319c4eb3f266003919aac88 SHA-256: 63194dfc86067a619faf9ecb12c5352658f7e08e519b4f98181d70fe6c89433a
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-get-free-robux-2021-by-uing-inspect-game-hack PDF link annotation
    • http://www.sfakia-online.com/images/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sfakia-online.com/images/speed-hacks-roblox-download_GM431946152.pdfIn PDF document text
    • http://www.sfakia-online.com/images/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • http://www.sfakia-online.com/images/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • http://www.sfakia-online.com/images/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sfakia-online.com/images/how-do-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.sfakia-online.com/images/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://www.sfakia-online.com/images/free-foxy-food-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sfakia-online.com/images/coin-master-deals_GM406889139.pdfIn PDF document text
    • http://www.sfakia-online.com/images/robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://www.sfakia-online.com/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://www.sfakia-online.com/images/coin-master-free-spins-fb_GM406889139.pdfIn PDF document text
    • http://www.sfakia-online.com/images/how-to-hack-pubg-mobile-uc-without-human-verification_GM1330123889.pdfIn PDF document text
    • http://www.sfakia-online.com/images/free-roblox-tracksuit_GM431946152.pdfIn PDF document text
    • http://www.sfakia-online.com/images/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • http://www.sfakia-online.com/images/best-free-software-to-make-thumbnails-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.sfakia-online.com/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.sfakia-online.com/images/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://www.sfakia-online.com/images/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sfakia-online.com/images/mcpe-client_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000338b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x338B 22456 bytes
SHA-256: 74dfff3448b67aa6958ddddb201d28d0e73a86a6379e456d61cc4699ce7a912f
font_01_sfnt_off000065ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65AE 19864 bytes
SHA-256: 353809fd30c9d608d9936e98d9db092f95f02604defb9d494a3e33e08b38b734

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