Malicious PDF — malware analysis report

Static analysis result for SHA-256 32deaa5edec8a26d…

MALICIOUS

PDF

35.5 KB Created: 2021-06-28 04:59:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 48d71fedbe626e573fa65ab7fd4dc40e SHA-1: a9fbf49a3caf46d4b442b1229979d915bce99476 SHA-256: 32deaa5edec8a26d8a3f0893c915b735259ceb2fb05cc35f6e6be2a5d6e79146
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/can-you-hack-roblox-anymore-game-hack PDF link annotation
    • http://global-brand.net/userfiles/files/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/watch-videos-for-robux_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/202113-hack-roblox_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-robux-easy-fast-no-human-verification_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-spin-link_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/how-do-you-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/roblox-promo-code-free-robux_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/cm-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/como-hackear-una-cuenta-de-roblox-2021_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/play-minecraft-free-online-no-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_off000032e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32E1 22420 bytes
SHA-256: 8ccfa6037918960b96b7deccd8c656d7cb87d566e996ef11e1d00df5f686046d
font_01_sfnt_off000064c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C7 19400 bytes
SHA-256: 09ce916de6f627e485c486fca9a8c5ca2ed5e4ea058578450c3443176c23fa0c