Malicious PDF — malware analysis report

Static analysis result for SHA-256 95f9ddc4e369dd1a…

MALICIOUS

PDF

42.7 KB Created: 2021-04-26 16:31:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: e9b6f9368014d4eaaea5b3b854f3a506 SHA-1: 870cb06351467fa8b106ac9f616ba38d08ae57bc SHA-256: 95f9ddc4e369dd1a1fc3cf0f0ef5f56b568328cd134ff17f8ef2ecf2ad8cdfce
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' or 'generators' for Roblox. These links lead to further malicious PDFs hosted on a suspicious domain. The ML classifier also flagged this PDF as malicious, indicating a high probability of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9836

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 https://netcdn.xyz/app/431946152/the-cheat-roblox-game-hack In PDF document text
    • https://lib-stie.yai.ac.id/repository/louka-roblox-hacks.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/mad-city-script-roblox-download-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-hack-website-no-survey.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-how-to-use-cheat-engine-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/game-stealing-service-free-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/does-roblox-have-free-sneaks.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/robux-hack-with-required-password.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-free-tshit-download.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/denis-cheating-in-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-cheat-hack-download.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_off00004001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4001 25644 bytes
SHA-256: 5680ca8c90ab91ea8cb23bee4df8837d89fd4dbf0069cf30e2c93c793ea7137b
font_01_sfnt_off00007948.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7948 3312 bytes
SHA-256: 40bd8eebcb3a0d68a8646f1930e84f30a44bfa48525263c6c528f0bc1e9c1677
font_02_sfnt_off00008497.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8497 18280 bytes
SHA-256: 99232ad9d92f4b920b3f55264874e72aceb7f47c93be1b20b07555a763ad2b10

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