Malicious PDF — malware analysis report

Static analysis result for SHA-256 ead15565163dc273…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 11:15:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f4a3b6cb873634971397f553ccb760b0 SHA-1: 210b720dd830d1925c6240f6007da33aad0b2ce5 SHA-256: ead15565163dc27312d08b29a30eff747e900c9415093bb25b8db83cc404c4af
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/how-can-you-hi-dont-know-hack-roblox-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/coin-master-20-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-hacker-mask_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-codes_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/tycoon-money-hack-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-hack-on-a-tablet_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-pets-for-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/pokemon-go-free-games-online_GM1094591345.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-no-offers-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-code-items_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-avatar_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hack-me-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-in-1-minute-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/icarus-roblox-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/adoptme-club-free-robux_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_off000031cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31CB 22172 bytes
SHA-256: c0651e4327b37686c331e4f153fbe00f73844e32e0476925a6aa8c74aba53bf1
font_01_sfnt_off000062fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62FD 19328 bytes
SHA-256: 5da176e55cd52c37a4bca369660e9ab5a581bdfb646244463037c51046238bb4

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