Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8c67b258dde7b76…

MALICIOUS

PDF

32.5 KB Created: 2021-07-20 02:30:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 339d04232efd7c1e2f8b99d751fccb23 SHA-1: d14caec8410582a8128ec34c36ce207f0adac86c SHA-256: e8c67b258dde7b76c65e463e8a5266dba13a54ccc2eab0272843e63c7a3f4542
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a "free generator / game hack" website, identified as malicious infrastructure. The document body and heuristics suggest a lure for users interested in game-related cheats or hacks. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure indicate a phishing or scam attempt, likely using a spearphishing attachment as the initial access vector.

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/how-to-get-free-minecraft-skins-game-hack In PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/free-robux-accounts_GM431946152.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/free-tiktok-followers-no-human-verification-or-survey_GM835599320.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/free-robux-offers_GM431946152.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/classic-minecraft-net-hacks_GM479516143.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_off00002e75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E75 21744 bytes
SHA-256: 8e0f16e771ad54399746baba7e381ee6bf478eeaa088e70443e64272287a4262
font_01_sfnt_off00005d93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D93 18044 bytes
SHA-256: 2e9033515f3ff21116dec08c3b5b633a0403805954c28c410ec38fa0176f1df4

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