Malicious PDF — malware analysis report

Static analysis result for SHA-256 253c9ac112c8852f…

MALICIOUS

PDF

36.1 KB Created: 2021-06-30 08:07:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 9100c9f2a74f0c5321a63f3652b21fe4 SHA-1: 75a29ada35df6e1a928cfa1f3cd0dae4a202c4ab SHA-256: 253c9ac112c8852fa9f466ea3518fb33d3f05590233aba59af4b3f8adc57054a
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/free-robux-money-codes-2021-july-game-hack PDF link annotation
    • http://perpus.i2s-learning.com/repository/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/como-hackear-roblox-con-lucky-patcher_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-injector-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/app-hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/dayz-roblox-cheats-codes_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/cheat-enginge-how-to-make-roblox-not-crash_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-free-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_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_off00003284.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3284 22748 bytes
SHA-256: 16af1e8d478256293b749f0cdccd02ed405a0b23e64d7c54a57299f96f10a4f1
font_01_sfnt_off0000658a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x658A 19908 bytes
SHA-256: 8c9d0603d655725655adb7a689c7a07b4050166e7993799060aeea03a8cb0840

Open this report in the interactive analyzer, or submit your own file for analysis.