Malicious PDF — malware analysis report

Static analysis result for SHA-256 0384033ea2e26f4e…

MALICIOUS

PDF

34.5 KB Created: 2021-07-08 22:23:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 7c76b44fd3cd5834bdfaa97befbb0502 SHA-1: 4b67a57fd5650c46d218ecf1606ab64968cb59ba SHA-256: 0384033ea2e26f4e989408b9cf7d10a17bca62ff01bb570b8440e0e9472b7da5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and free in-game currency, such as 'coin-master-hack-spin-160-pro-game-hack'. This lure is designed to trick users into visiting potentially malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/coin-master-hack-spin-160-pro-game-hack PDF link annotation
    • http://samavetpharm.com/userfiles/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-roblox-admin-hacks_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/roblox-free-robux-download-2021_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-50-spin-link_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-gift-link_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-hack-2021-download_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-free-spins-no-human-verification_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/roblox-noclip-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/lua-c-free-camera-roblox_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/real-roblox_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/coin-master-free-spins-link-download-free_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/god-mode-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://samavetpharm.com/userfiles/files/minecraft-pe-apk-download_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
font_00_sfnt_off00002fc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC2 22716 bytes
SHA-256: 26316934861d9f832dd9faf666b147d04618a691c0d2e2226ec48a0856a8c161
font_01_sfnt_off00006299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6299 18780 bytes
SHA-256: af4936e3ccb6416df15e8de664b166a9aa200208572627e4f7bda013e34b6fdb

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