Malicious PDF — malware analysis report

Static analysis result for SHA-256 e67e5d60c36b955d…

MALICIOUS

PDF

32.6 KB Created: 2021-07-19 19:04:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d1f747340832caad21fb5812aca653e9 SHA-1: 646e642528a9b2f5a77c7c5d1c6fd663d9c64e4c SHA-256: e67e5d60c36b955d3d30dd8b492bcb7ac72048f4fd55db7eec64b22ea2606234
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links to known malicious redirectors, disguised as "free generator / game hack" lures. The primary URL, http://netcdn.tw/app/479516143/minecraft-free-download-chromebook-game-hack, is flagged as malicious. The document body also contains a call-to-action phrase, "CLICK HERE TO ACCESS MINECRAFT GENERATOR", further reinforcing the lure. While no scripts were explicitly extracted, the nature of the redirect and the ML classification suggest it's designed to exploit vulnerabilities or deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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 http://netcdn.tw/app/479516143/minecraft-free-download-chromebook-game-hack In PDF document text
    • http://genialica.com/images/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • http://genialica.com/images/how-to-get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • http://genialica.com/images/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • http://genialica.com/images/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://genialica.com/images/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://genialica.com/images/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://genialica.com/images/free-views-on-tiktok_GM835599320.pdfIn PDF document text
    • http://genialica.com/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/claim-free-robux_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
font_00_sfnt_off000029bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29BC 22316 bytes
SHA-256: 90dcda85f70e7c87c77632b5ab20b6e1a41546c6c4fb462988078e37f5b21cdf
font_01_sfnt_off00005b1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B1E 19044 bytes
SHA-256: 5dd9560c2144c6e0c163b4f028c4225137fae20b1a5cdfb52854f5b1068f3385

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