Malicious PDF — malware analysis report

Static analysis result for SHA-256 d197e3db9a59721c…

MALICIOUS

PDF

36.0 KB Created: 2021-07-06 01:10:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: caf429233ad571c76c8e022e755439ac SHA-1: b6dc10c18450f291ebba8c09c560aebe07cbe7c8 SHA-256: d197e3db9a59721c1e128618f6059a194c921bc049ff5b05552bd7900a02a362
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.tw/app/431946152/free-robux-wheel-game-hack PDF link annotation
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/skin-hacker-roblox_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/bloxburg-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-fly-hack-roblox-lumber-tycoon_GM431946152.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/hacking-scripts-to-hack-roblox-gamemodes_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/cheater-roblox-jvc_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/roblox-free-avatar-items-2021_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/free-items-that-are-now-expire-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/fightforglorton-free-l-robux_GM431946152.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/free-giveaway-robux_GM431946152.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-hack-roblox-with-inspect-element-2021_GM431946152.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/freespinandcoin_GM406889139.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_off000034bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34BC 22676 bytes
SHA-256: e137607bff9fc3b694420d774531d7723d27911b7a59ee50a41b39edea344db9
font_01_sfnt_off0000675c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x675C 19152 bytes
SHA-256: cf716deddb218d639333a208b14afa862533cd115a796a4dbed768fb003055b6