Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e2dd9e9616f1dac…

MALICIOUS

PDF

34.2 KB Created: 2021-06-30 00:09:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 9033c42a83d0718d7cc8ea91805d1aa2 SHA-1: 39a25e6be280762433faad4dee817bc94fec5727 SHA-256: 4e2dd9e9616f1dac6fab6fa3334df25ac4dc7e4b1364a9daff56d0d14abc2044
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/hack-into-people-roblox-account-pastebin-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spin-and-coin-link-2021-today_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-backdoor-to-earn-robux-v3rmillion_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-free-robux-pin-code_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/infinite-robux-cheat_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/download-roblox-cheat-engine-55-for-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-hack-real-one_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/rbx-live-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-robux-2021-not-clickbait_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-spin-link_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hack-slx_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/get-free-robux-easy-simple_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-connection-lost-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-coin-master-online_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_off0000311b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x311B 21376 bytes
SHA-256: 7d523507696c4dddb877469f5d002ee55766246d37dc9aa0d340210e8741dc4d
font_01_sfnt_off00005fa6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA6 19348 bytes
SHA-256: 93405379bfac4b5cc397cfec3e67ae7d037666789e7ccb213c1f65bbdfe78e29

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