Malicious PDF — malware analysis report

Static analysis result for SHA-256 93fc85192a02ec90…

MALICIOUS

PDF

37.7 KB Created: 2021-05-21 12:54:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: aafdde82a52b3f9e2ae546e1b92834e2 SHA-1: 726a866c2150c0623379fd4b929d0f90a1201d13 SHA-256: 93fc85192a02ec904281b103986b68a44848a1ae395265bb00f6fb19d4cf64f9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirector infrastructure, specifically promoting 'free Robux' or game hacks. The document body, though partially corrupted, contains similar URLs and text suggesting a lure for potentially unwanted or malicious content. The ML classifier also flagged this PDF with high confidence.

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/easy-how-to-get-free-robux-game-hack In PDF document text
    • http://g3galileo.com/images/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
    • http://g3galileo.com/images/pokemon-go-free-30-ultra-balls_GM1094591345.pdfIn PDF document text
    • http://g3galileo.com/images/free-roblox_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/roblox-free-roblox_GM431946152.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_off000034cd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34CD 25708 bytes
SHA-256: 8b4c6763a04776875dede617e54184d4ca38d1ced95e5cb571ffbac65c80fc93
font_01_sfnt_off000070b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B7 18688 bytes
SHA-256: c2d85703cc6a1447500036b33f7ea43eb33cd1174df43eac9260fbff62206025

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