Malicious PDF — malware analysis report

Static analysis result for SHA-256 e96094a139703ec5…

MALICIOUS

PDF

40.0 KB Created: 2021-05-10 13:31:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 3ca53731dd3270677bee9be5ea894cc9 SHA-1: fa1d3eab33e0d06fda8007df20dd728f3717fff4 SHA-256: e96094a139703ec532d165bb41fc9b1be74fd5caee43fee540f3f76cd582a884
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 0.9407

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/mistplay-robux-game-hack PDF link annotation
    • http://androidthai.in.th/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • http://androidthai.in.th/images/completed-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://androidthai.in.th/images/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://androidthai.in.th/images/fb-coin-master-free-spins-link_GM406889139.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_003_off00003a09.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3A09 26648 bytes
SHA-256: 72469f514c5381baef40ebfab5aa138ee507f176b364a3f5ec7da1da58360f01
font_01_sfnt_off00007906.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7906 18928 bytes
SHA-256: 4353d9d8b624be656c092b8c8f3622dfb05908b0fd9cf93c1f73531fdc9e42e9

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