Malicious PDF — malware analysis report

Static analysis result for SHA-256 03e23069cfe3e046…

MALICIOUS

PDF

36.0 KB Created: 2021-05-20 21:39:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1c44e9a32f76bae4a1f7119d6bc07bca SHA-1: 08e159fb990223808597cc37f6e528c65c6d09c6 SHA-256: 03e23069cfe3e04682f3b4a751c709048fa8b02db5a7d39fdede8791898fc14a
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 0.9492

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.xyz/app/479516143/minecraft-hack-mod-game-hack PDF link annotation
    • http://leigraphics.com/images/blox-fun-info_GM431946152.pdfIn PDF document text
    • http://leigraphics.com/images/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://leigraphics.com/images/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • http://leigraphics.com/images/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://leigraphics.com/images/get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://code.giftcards.comIn 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
stream_002_off000032e6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32E6 24916 bytes
SHA-256: 664594ee7f96483264473ab0022c84ffae3dd6a2865260720e84ef53322bf6db
font_01_sfnt_off00006c38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C38 18056 bytes
SHA-256: c98163390533840513273057c02ab8b0002c23ddfc36b9b9583c7d176bc18763

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