Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0b6847d6282f3c4…

MALICIOUS

PDF

36.4 KB Created: 2021-05-21 01:11:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 329b7c0d2e86da0a85d23f122dd3841b SHA-1: 8163cb5b13961141fa78280baa015681e8339864 SHA-256: f0b6847d6282f3c4214572b3a9db08a2d88cf2d0cb133d646ed898beb28e6b1a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for a game hack redirect lure, pointing to a malicious URL. Multiple other URLs are embedded within the document, likely serving as further redirection or payload hosting. The document body and embedded artifacts suggest a social engineering attempt to trick users into downloading or accessing potentially harmful content.

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/free-op-minecraft-servers-game-hack PDF link annotation
    • http://educhina.mn/editor/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-34-5-hack_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/haktuts-coin-master-free-spins-2021_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_002_off0000343e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x343E 25088 bytes
SHA-256: 11ff84062f09aa60301b493cf13bd3ad43104b8781bca08da4dce87643f5e9ea
font_01_sfnt_off00006e6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E6A 17856 bytes
SHA-256: a77b7ff2a68dfc8683e01ffa7febdd478081a7961822aa2eebc6e1611696765c

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