Malicious PDF — malware analysis report

Static analysis result for SHA-256 c39d75e209d3b42b…

MALICIOUS

PDF

42.3 KB Created: 2021-05-11 00:07:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: faf0dc75eb014918075469d050b840e0 SHA-1: 413f70f159cba0aae46a226764f112938be119a8 SHA-256: c39d75e209d3b42b756ebcee98ec14aabb9564fd1ffc62541aed5aa990b43b05
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "Coin Master Hack Download" and directs users to external URLs that likely host malicious content or further phishing attempts. The ML classifier strongly flagged this PDF as malicious, and the embedded URLs are associated with game hack lures. No scripts were extracted, but the document's structure and embedded URLs indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/coin-master-hack-download-game-hack PDF link annotation
    • http://pspmrsmbpulau.com/opac/repository/coin-master-hack-cheat-generator-d_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/minecraft-login-free_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/link-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/roblox-printables-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/coin-master-spin-link-free_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/robux-no-survey_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpulau.com/opac/repository/get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpulau.com/opac/repository/free-robux-no-verification-or-survey_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_003_off000048db.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48DB 25624 bytes
SHA-256: f6d547c710133a7e3c35a9c72987ff3d00f7fe1747b068d225a0655da5f81944
font_01_sfnt_off000082de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82DE 18296 bytes
SHA-256: db56d9e3c11ec37843eb343cebe3e770d4a138f0c9ee08e97c7bb5af64d66a72

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