Malicious PDF — malware analysis report

Static analysis result for SHA-256 e466cd0fa08d9888…

MALICIOUS

PDF

33.1 KB Created: 2021-07-05 17:54:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 84b04d9db272bccd6ad64a05f2cfcca6 SHA-1: eae4e3dd134a4d4599350d7f584a414bd28966f3 SHA-256: e466cd0fa08d988812fa2eeb27dbc873b5debb74b8af4cbbecf8c52087892b1a
102 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 0.9824

Heuristics 5

  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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-to-hack-any-roblox-account-game-hack PDF link annotation
    • http://110.232.83.89/slimsppks/repository/minecraft-wurst-client_GM479516143.pdfPDF link annotation
    • http://110.232.83.89/slimsppks/repository/free-roblox-open-groups_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/is-pokemon-go-fest-free_GM1094591345.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/roblox-verification_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/free-printable-roblox-images_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/coin-master-hack-mod-apk-android-1_GM406889139.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/hack-coin-master-no-survey_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_off00002ab5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB5 22336 bytes
SHA-256: 23997e118d668048291565e89193731b0eebf5e43f9770859987f749853252c8
font_01_sfnt_off00005bd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD9 19244 bytes
SHA-256: 6d65792bfd45bcee93e0a3a5c2653c8cc75893afabb3de85f48b4c2dd1390979

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