Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e1b2d89b1c25e1a…

MALICIOUS

PDF

34.5 KB Created: 2021-05-23 03:11:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 578b529a58d90556a22c45cdc2c4c99e SHA-1: dca7827bd4fa93440dae5c5f2d37b83e5aca257b SHA-256: 3e1b2d89b1c25e1a2731ed0311eb043c2113110d1b3d37f37d4bd18d4311b69a
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple links that are flagged as malicious redirectors, specifically advertising 'free generator' or 'game hack' lures. The document body and embedded links suggest an attempt to trick users into visiting these sites, likely for credential harvesting or malware delivery. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9866

Heuristics 3

  • 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.
  • 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-2021-no-human-verification-game-hack In PDF document text
    • http://gomelavto.by/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://gomelavto.by/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://gomelavto.by/images/coin-master-free-spins-cheats_GM406889139.pdfIn PDF document text
    • http://gomelavto.by/images/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://gomelavto.by/images/best-free-coin-master-spins_GM406889139.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
font_00_sfnt_off00003341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3341 23764 bytes
SHA-256: ae2264924801b3a01a868c855519ef1a52e4f966ad2bf2285d29871f1331b936
font_01_sfnt_off00006933.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6933 19428 bytes
SHA-256: dfc7ca414cfca4f80301273998e01ceb4bfd22e3de883fcbe9d6a0102e8d41a4

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