Malicious PDF — malware analysis report

Static analysis result for SHA-256 39686dae4a7ad7b7…

MALICIOUS

PDF

39.9 KB Created: 2021-05-23 04:26:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3b1283119a12ca6a8fccec9d9fecd4f8 SHA-1: 62601b64d2f8b74f12d3aac26476ab2f12167417 SHA-256: 39686dae4a7ad7b722669d3d7b90e7bbe58b294ecf859b9ab243c13c6951ef0f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of free game resources, such as 'Free Minecraft Resource Packs'. The document body explicitly contains a call to action 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' which, when combined with the heuristic findings, strongly suggests a phishing or malware distribution attempt. Although no scripts were directly extracted, the PDF structure and embedded URLs are indicative of a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8068

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/free-minecraft-resource-packs-game-hack In PDF document text
    • http://oceanos.pl/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://oceanos.pl/images/pokemon-go-free-gucci_GM1094591345.pdfIn PDF document text
    • http://oceanos.pl/images/best-site-for-free-coin-master_GM406889139.pdfIn PDF document text
    • http://oceanos.pl/images/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://oceanos.pl/images/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003521.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3521 25920 bytes
SHA-256: 2a64955ee91a1f0085c859240c59399777c13ee115a883686dc86cd569db66b1
font_01_sfnt_off0000707c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x707C 3056 bytes
SHA-256: dd24a0ab94df4552e459bd06fd01b0fd3f021c1d51d1d64407070e735974a028
font_02_sfnt_off00007aee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AEE 18172 bytes
SHA-256: ba55ace67aaa42a75d72a76423215630d067bde5e330a1763dcb3073f08e6856

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