Malicious PDF — malware analysis report

Static analysis result for SHA-256 8558ddce4fd34064…

MALICIOUS

PDF

36.9 KB Created: 2021-05-24 04:08:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 824426754e24e3498a7ed3e265b6f4f3 SHA-1: af3c064c90a39e1accc870c4f01879be65299201 SHA-256: 8558ddce4fd340643825ba2defcf26b50d893921b980f4d83041db0ff9c77414
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, disguised as game-related content. The presence of a 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' button further supports the lure. The ML classifier also flagged this PDF as malicious, indicating a high probability of malicious intent.

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/479516143/mine-minecraft-games-for-free-game-hack In PDF document text
    • https://gryps.de/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://gryps.de/images/free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://gryps.de/images/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://gryps.de/images/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://gryps.de/images/free-robux-accounts-2021_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_off0000365e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x365E 25332 bytes
SHA-256: 27596cf07d0e901993a1790917c1b1c69c6635306f3581e4dc971f9e033f1a0e
font_01_sfnt_off00007022.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7022 17968 bytes
SHA-256: cadb606d3d0b8b0ab684217e51fa9c6d47dd4cc69c3dac55631094b48cac1516

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