Malicious PDF — malware analysis report

Static analysis result for SHA-256 95aab59b7638c5bc…

MALICIOUS

PDF

42.5 KB Created: 2021-05-13 02:39:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a881470e65a953235c23cdbd98c47766 SHA-1: 1a52455c6c2a1690a95aec658273a012ceb23302 SHA-256: 95aab59b7638c5bc5a53a504e902566ecd639f104a6d80d566f20f37b0f16d7a
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/today-coin-master-free-coins-link-game-hack PDF link annotation
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/microsoft-store-robux_GM431946152.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/get-free-coin-master_GM406889139.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/how-to-download-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/free-roblox-templates_GM431946152.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/free-robux-script_GM431946152.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/moonactive-coin-master_GM406889139.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/how-to-duplicate-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/real-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.lwctrust.co.uk/admin/ckfinder/userfiles/files/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d57.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D57 24020 bytes
SHA-256: 0c2434af4ac8ae7e68b0143dbbec4ab13ede30d5803e832c2c5e4f62256d25e6
font_01_sfnt_off000083d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D4 18232 bytes
SHA-256: 1c180deade05dd65faa90c9140eaad93d598bc72d335cb638659863cfa25ddf2

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