Malicious PDF — malware analysis report

Static analysis result for SHA-256 eda3630f1c92f4e8…

MALICIOUS

PDF

34.1 KB Created: 2021-07-05 19:42:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: af182138be019cd35de77306de6da280 SHA-1: e5fb59ee8607ad4ca9c6cd6c03060ac900baf7e7 SHA-256: eda3630f1c92f4e896dabbd4328adae65b179d0531fa4f68cfb1510c2493ed3e
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/free-robux-promo-codes-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/crate-opening-roblox-hack_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/get-free-spins-coin-master-october-2021_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-apk_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/get-100-000-000-000-000-000-robux-for-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/murder-mysstery-hack-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-game-download-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/robux-generator_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-tix-roblox-hack_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/robux-rewards_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/get-free-robux-no-survey-no-download_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-dungeon-quest-hack-free-download_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/appbounty-net-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-roblox-hair_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_off00002e0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E0D 22156 bytes
SHA-256: 54a29b0f0ede425b7dc5abd5851b54e8391d7cb2f453fb7957c4d292e19728be
font_01_sfnt_off00005f62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F62 19304 bytes
SHA-256: b8217d46ff736f49d3e7fbbf4ad016b5c147b05ee0ff1e8951011688dc8d1bae

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