Malicious PDF — malware analysis report

Static analysis result for SHA-256 3932f2084ac0686a…

MALICIOUS

PDF

42.0 KB Created: 2021-05-17 05:03:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a3bc43ed1d85db29a8683d311c11c4c1 SHA-1: 9855c0ac25c59509f134909617eca0072e7814b0 SHA-256: 3932f2084ac0686a3706f5b3d8f0cd89300ecc435c96ffe4fa017f03ccf89a90
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 0.9971

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/real-working-coin-master-hack-game-hack PDF link annotation
    • http://tasleemdubai.com/userfiles/files/master-coin-hack-mod_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-www-com_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-hack-online-2021_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/robux-link_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/code-free-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-blogspot-links_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/download-apps-for-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-c9m_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-script-executor-free_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-promo-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-minecraft-mods-for-xbox-one_GM479516143.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_off000049b2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49B2 25204 bytes
SHA-256: c8c52d4976546af05a858cbdba754296cbd3fd11c976cf4ed559078697691ee9
font_01_sfnt_off000081d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D2 18276 bytes
SHA-256: b738e75be18aea5c9f27761cbb1ef73bc9b28f3240c5da18f5fa5a3f41f529c6

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