Malicious PDF — malware analysis report

Static analysis result for SHA-256 cedaf1ad6838246b…

MALICIOUS

PDF

45.7 KB Created: 2021-06-03 22:28:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fd71109b58b183c79072899d9b7b0b0f SHA-1: 07decdb78a663514cef848f4b78432c0d16aa377 SHA-256: cedaf1ad6838246b361170783b8802b5e7c79fd4fea78472a6ee400b8c4ca542
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 0.9864

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 https://netcdn.online/app/406889139/coin-master-get-free-cards-game-hack PDF link annotation
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/minecraft-handbook_GM479516143.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/cute-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/free-100-robux_GM431946152.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/wurst_GM479516143.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://elearning.man1metro.sch.id/__statics/gudangsoal/files/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000544a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x544A 26476 bytes
SHA-256: 5f3ca573156bb9660198398a61cfdce5aec61ed0ced2d64e50981256be8c98ed
font_01_sfnt_off00009166.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9166 17884 bytes
SHA-256: 5b281f9ab4f938cb23f4159929956e1cae7172efdead6ba15b04f3aeaf5d2e05

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