Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f8b62e5d5b63966…

MALICIOUS

PDF

37.0 KB Created: 2021-07-04 02:42:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a8bab52e62c08994e01e3ccb8f3b139c SHA-1: d65366a12868d2dc1cf4e680fc7c4eaf23da2e06 SHA-256: 8f8b62e5d5b63966060a9b67c6c580a8fb8fb08cb29a06869aac67d3ed0da909
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 0.9886

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 http://netcdn.tw/app/406889139/daily-coin-master-free-game-hack PDF link annotation
    • http://tasleemdubai.com/userfiles/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/microsoft-bing-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-hack-coin-master-apple_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-verification_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/download-roblox-pc-windows-10-free_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-weird_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-event-hack_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-spins-2021-apk_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-mod-menu-hack-download_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-app-for-free-spins_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-robux-scams_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/get-more-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/give-free-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-get-free-robux-on-roblox-pc-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/mc-update_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB6 22980 bytes
SHA-256: e47b6a72e6792ed9f4624ba36dd384ba6803a749f913aa4cba42ade016d606c1
font_01_sfnt_off00006379.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6379 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off00006d5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D5E 18420 bytes
SHA-256: 3a070d01991ba37d1b66f5afcb0e496dea45e938f3f711e2358dbb8585b43e97

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