Malicious PDF — malware analysis report

Static analysis result for SHA-256 a14f069f3815e13f…

MALICIOUS

PDF

36.3 KB Created: 2021-05-20 22:35:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b171215f64bde6325732d31e26a00ea1 SHA-1: ab11c177d9fd777b3e59308b933f924b2b85a408 SHA-256: a14f069f3815e13ff51f84481161dc6aee597c2139b7d51ebfca43fa1eca6cde
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/431946152/games-to-get-free-robux-game-hack PDF link annotation
    • http://tileworld.com.au/files/how-do-u-get-robux_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://tileworld.com.au/files/roblox-weird_GM431946152.pdfIn PDF document text
    • http://tileworld.com.au/files/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
    • http://tileworld.com.au/files/minecraft-redeem-code-free_GM479516143.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_off0000326a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x326A 25368 bytes
SHA-256: d62961689436a28f4ca83876e700da470d069d04e072107629cddc5098824b59
font_01_sfnt_off00006ba9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA9 18608 bytes
SHA-256: 08e91301afb793f0c8f569168ad93911c90315771ef2b58170e32493949df7cc

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