Malicious PDF — malware analysis report

Static analysis result for SHA-256 95f2e60abd43eb1f…

MALICIOUS

PDF

44.2 KB Created: 2021-05-21 01:09:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 705f9aa3278ba465e389b255bee3d780 SHA-1: 1b6bbe5e64f8a60711fd4ee390271e168c39b131 SHA-256: 95f2e60abd43eb1fc8d2273d4d3764011cf3b2ebf2e422d5b0b1b7b871a7e338
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 0.9503

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/how-to-get-free-hair-in-roblox-game-hack PDF link annotation
    • http://agritrade-ukraine.com/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/pubg-uc-cheap_GM1330123889.pdfIn PDF document text
    • http://agritrade-ukraine.com/images/free-robux-only-username-no-human-verification_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_off0000334e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x334E 39664 bytes
SHA-256: 9807ef6683abe16ccf0e34d2aa2b512756ae3de9e1dc2e9c8385f730074814b9
font_01_sfnt_off00008b4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B4F 18564 bytes
SHA-256: d67237273ed03f92aa8c6c4764a8757174e90409c0462d06d9c122592efde19a

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