Malicious PDF — malware analysis report

Static analysis result for SHA-256 753faff63aca61e6…

MALICIOUS

PDF

34.9 KB Created: 2021-06-26 11:54:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c0e05f23fc6c9f475a8100efe181ec38 SHA-1: 2343ee0f7989a57eeb1316c2b1b2a34f3341de09 SHA-256: 753faff63aca61e6816810ec7f7c88bc12ff5208a1ab6522f57578c7702a5f9a
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-hack-treadmills-roblox-game-hack PDF link annotation
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/roblox-anti-speed-hack-fe_GM431946152.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/city-architect-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/is-roblox-studio-free_GM431946152.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-spin-ml_GM406889139.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-get-free-robux-on-roblox-without-builders-club_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/free-robux-come_GM431946152.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/freespins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/robux-come_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/baldis-basics-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.wholesomeliving.in/uploaded_files/userfiles/files/how-to-hack-denisdaily-roblox_GM431946152.pdfIn PDF document text
    • http://www.wholesomeliving.in/uploaded_files/userfiles/files/roblox-scam_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_off00003052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3052 22460 bytes
SHA-256: 7d9cea2afe78bde5264fadbaf121663fc20e4ce5418bea2d610e65005a10fa18
font_01_sfnt_off0000627b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627B 19376 bytes
SHA-256: 65c45c13cc95b5e0c94132e8855e61d8b0b4656180e42c3cea91bdc26818edea