Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d6ed7d5510edb46…

MALICIOUS

PDF

36.3 KB Created: 2021-05-22 22:27:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3ec1db1f3ce3b9b5d5f88d66e68ae630 SHA-1: 240b9f8a698b277c1fc59171c703a422cb08fa58 SHA-256: 6d6ed7d5510edb4631de806ecdfa440097c5a8f80c2af2b23bf9f67ca40bf036
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-pe-hack-client-game-hack PDF link annotation
    • http://sudamericarural.org/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://sudamericarural.org/images/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/real-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sudamericarural.org/images/get-free-robux-today_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
stream_002_off00003652.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3652 24252 bytes
SHA-256: d622deb5b8012b956b155639645a02fd90e0565be762ebf02f08a287fd613bd9
font_01_sfnt_off00006dea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DEA 17968 bytes
SHA-256: a1bdeaf7b929e0321b1dbbf2b8f1cbdbbbd0c833166bb9e07af12e4b4538f125

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