Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dd0d5a8c004d37d…

MALICIOUS

PDF

35.1 KB Created: 2021-06-20 05:11:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fd311ddefebd23ed2e2da9853191fbfe SHA-1: 13ba4bde1f34c1066d8ddc3404ced29269c9d120 SHA-256: 6dd0d5a8c004d37df25a0caac1e6a08d0b2717674e84eb29a2eb8430d36e1b29
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/best-free-t-shirts-in-roblox-game-hack PDF link annotation
    • https://perpustakaan.itda.ac.id/repository/earn-free-robux-legally_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/pastebin-link-for-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hack-to-send-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-create-vip-server-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-legend-of-the-bone-sword-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/can-tiktok-free-views_GM835599320.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/earn-free-robux-now_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/robloxcom-cheat-codes_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/all-roblox-games-you-can-hack-with-proxox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-roblox-accounts-rich-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hack-money-jailbreak-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-hack-snow-shoveling-simulator_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_off0000334e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x334E 22176 bytes
SHA-256: 12d57b07dc2f1b8c514bf9be442626e61b57c2ecc7928e1e0e0cb691be91e377
font_01_sfnt_off00006483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6483 19040 bytes
SHA-256: 8314085c9859a047cc425ae6a7d838fb1c540aec5608718dfbaa9267c631572f

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