Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c362011d8a3776c…

MALICIOUS

PDF

37.5 KB Created: 2021-05-21 18:26:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 93c339f31282d162ad6c6373c527c2d9 SHA-1: 5901ae304c8d453d8d15f2effa1da7ff403e980f SHA-256: 3c362011d8a3776c94eeaf4d22918ce56def6622c8ea0778b64c8fcfe4af1f58
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically promoting 'free Robux' or 'game hacks' to entice users. The document body and embedded URLs reinforce this lure, directing users to infrastructure associated with scams. No scripts were extracted, but the primary attack vector appears to be social engineering via malicious links within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/how-to-get-free-robux-on-mobile-game-hack In PDF document text
    • http://eurocomes.com/images/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://eurocomes.com/images/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • http://eurocomes.com/images/can-you-still-get-minecraft-windows-10-for-free_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
stream_002_off00003341.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3341 26796 bytes
SHA-256: 303b2c88a736a3fd2ab05fc307f01643eb7e7ba66e4cb6282a7dda7b7957277f
font_01_sfnt_off00007067.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7067 18672 bytes
SHA-256: 54aa4755d3d4fcbd00d11f20b69d4376192dec0a97bdc1376cf216d73564a968

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