Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4c56617e67d89c7…

MALICIOUS

PDF

42.8 KB Created: 2021-04-25 12:07:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7d7dbbf241f722db1852513434c77c40 SHA-1: 01925efcd79e104bf60ca1315a41e3924f0c37ee SHA-256: e4c56617e67d89c71dd12e1cc0b6c5dd47630d2e8ce5566769f813027595c4a3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free generators' and 'game hacks' for Roblox. The document body also contains a call-to-action to access a Roblox generator. The primary malicious activity observed is the redirection to malicious infrastructure, which is a common tactic for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9037

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/numeros-de-roblox-hacker-game-hack In PDF document text
    • https://lib.stie-yai.ac.id/repository/how-do-you-get-free-robux-easy-way.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-a-white-shirt-roblox-free.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-hack-onto-someone-elses-account-on-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-dragon-ball-z-final-stand-zeni-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/case-clicker-roblox-hack.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-robux-generator-tool-paste.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-how-to-get-obc-for-free.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
stream_003_off00003e15.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3E15 26240 bytes
SHA-256: 8f7db2f6e0c615a397db044eee0cb42cdb8765210742d0d3c709e455389f4be2
font_01_sfnt_off00007a1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1C 2900 bytes
SHA-256: 399b2e003bb834069e45b713d2a7ab1ae27ac92ef859a1f9fc91abcd16ae48de
font_02_sfnt_off00008422.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8422 18748 bytes
SHA-256: f87d2ffc124836186ca0e0a5baea29f032c9bd5d47d5b71815a3c873a94231d7

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