Malicious PDF — malware analysis report

Static analysis result for SHA-256 80117dd15bba83ff…

MALICIOUS

PDF

45.1 KB Created: 2021-06-03 23:55:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: da551e30d0a7c5c885894cf463b76fd8 SHA-1: 5a9d589b7a1a44edb888cf8289828ab86629e059 SHA-256: 80117dd15bba83ffa6797ea6b56c518462011d0bee5e7ad34e604bee34e92d06
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses an urgency-based lure. 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 0.9865

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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 https://netcdn.online/app/431946152/roblox-jailbreak-nuevo-menu-de-hacks-actualizado-rocket-fuel-game-hack PDF link annotation
    • http://library.gkigadingserpong.org/repository/free-roblox-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/minecraft-for-free-apk_GM479516143.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/roblox-free-item-codes_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/hack-coin-master-nyc_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-avatar-maker-free_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/tiktok-free-recharge-500_GM835599320.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/minecraft-free-online-games_GM479516143.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-online-hack-link_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/roblox-free-robux-com_GM431946152.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_off000050d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50D8 24680 bytes
SHA-256: 70b5b08babbcbf8268cd3d9de27ad2174e47bab343bb071d4b713cec30e1bb47
font_01_sfnt_off00008996.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8996 19612 bytes
SHA-256: 5cf608e3b327317a9d79a5c58fb47bb1c5e6803be133604355c38231d2559b4e

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