Malicious PDF — malware analysis report

Static analysis result for SHA-256 09c1c3d7706023eb…

MALICIOUS

PDF

42.1 KB Created: 2021-05-11 01:43:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 9537296afd24adab609b717e2d456489 SHA-1: e7c25ff97ab72a70f97e294a59b096aa7c3c7e47 SHA-256: 09c1c3d7706023eb88d83851a220db144d0afe600a721f06e37ab3a4cf50f761
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links and a heuristic firing for a game hack redirect lure, indicating a phishing or social engineering attempt. The primary URL, https://netcdn.xyz/app/406889139/coin-master-free-coins-link-2021-deutsch-game-hack, is likely the destination for users seeking game cheats. No scripts were extracted from this sample, but the presence of numerous malicious URLs suggests a drive-by download or redirection to a malicious site.

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-free-coins-link-2021-deutsch-game-hack PDF link annotation
    • http://e-lib.smaxaverius5.sch.id/repository/https-iosgodscom-topic-20214coinmasterhack_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-free-spin-daily-bonus_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-daily-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-hack-no-verify_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-hack-link_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-spins-on-coin-master-cheat_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-generator-hack_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
font_00_sfnt_off00004af8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AF8 23984 bytes
SHA-256: 0a7e18dd3f59235dab5c307d1f5bd9579feb1d4e634712f6e9a19f6eec50ee5b
font_01_sfnt_off000080d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80D5 18756 bytes
SHA-256: cee569ad26c6995f0462545108d280bf76b2c9dfe620e2643f0a7a8ec4db527a

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