Malicious PDF — malware analysis report

Static analysis result for SHA-256 7488d8eb32e64959…

MALICIOUS

PDF

35.6 KB Created: 2021-05-22 12:38:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 733d002140de5433246765ee5269384b SHA-1: 6f7ada30f838e1cc862b4c83db09486af06dda1e SHA-256: 7488d8eb32e64959c6b23956a605a8b1624692231dc96241efb7a7f22e12ba87
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/835599320/free-tiktok-followers-and-likes-game-hack PDF link annotation
    • https://www.saisystem.it/images/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
    • https://www.saisystem.it/images/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.saisystem.it/images/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.saisystem.it/images/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
    • https://www.saisystem.it/images/how-can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003193.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3193 25512 bytes
SHA-256: ec1305a72c4f4ecf2258967ffeffabcf1a1fbcc00bbd36fa854081a7bc69454b
font_01_sfnt_off00006b1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B1C 17868 bytes
SHA-256: 3d92bf9f97e5112d292b407947535e704fb05ee4c3221ca2b39c5e27e22079fe

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