Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa29233ef2c16474…

MALICIOUS

PDF

35.5 KB Created: 2021-07-07 00:08:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 99af798ce3a2f22df1cf467addbb4ee4 SHA-1: 1c925cb815f4222701d21014938ed8ea24ae05cb SHA-256: fa29233ef2c164748033dfad27a6e71cc3837490591ceee42a8a2f2e70c8d2bd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically promoting 'game hacks' and generators. The primary lure directs users to http://netcdn.tw/app/406889139/coin-master-game-hunters-club-game-hack, which is flagged as malicious infrastructure. This suggests the document is designed to trick users into visiting potentially harmful sites, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-game-hunters-club-game-hack In PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/coin-master-hack-using-lucky-patcher_GM406889139.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/coin-master-hackcom-xyz_GM406889139.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/minecraft-windows-10-edition-free-download_GM479516143.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/tiktok-likes-free_GM835599320.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/coin-master-free-rewards-link_GM406889139.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/free-unlimited-coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/coin-master-hack-apk-android_GM406889139.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/minecraft-free-download-android-apk-014-0_GM479516143.pdfIn PDF document text
    • https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/minecraft-iphone-free_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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B3 18468 bytes
SHA-256: 89686f82b30a45f913bec269d2f6275be7871e2e7b85c52696b637769d10879d

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