Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4e059a41b523334…

MALICIOUS

PDF

37.6 KB Created: 2021-05-19 00:04:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 44365a5b5d23c38c934907b4bcb2567b SHA-1: fbc6af99ad530c655a676a00641877ecc3c790d9 SHA-256: a4e059a41b52333492e0b2c7f1a46446016e90a75a9c6babbb9540e0d9dd41f8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that are identified as malicious redirectors, specifically leading to a 'free generator / game hack' lure. The document body also contains a call-to-action phrase and the malicious URL, reinforcing the phishing attempt. While no scripts were extracted, the PDF structure and embedded URLs strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9280

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/479516143/minecraft-free-download-unblocked-game-hack In PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/how-to-get-tiktok-free-fans_GM835599320.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/how-to-get-traded-pokemon-to-evolve-without-trading_GM1094591345.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/coin-master-fan-page_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_off00003838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3838 24396 bytes
SHA-256: e7350d3ec0396c4a02a11e8c098e84f9eee434d5a417d506c10e3345a3f99584
font_01_sfnt_off00006fdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FDC 18804 bytes
SHA-256: 351b73efa1cf4358b07b283040b01ec481d6b0b50516ad4f4e94e13994b713ed

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