Malicious PDF — malware analysis report

Static analysis result for SHA-256 0976cc5cb66dd0e3…

MALICIOUS

PDF

45.6 KB Created: 2021-06-07 18:21:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9684e16d150f4f169f0dce3cfef578a6 SHA-1: 8a4f675a99648a97f337e8698952874689db28d7 SHA-256: 0976cc5cb66dd0e3cf97d0d66b57362786a5216f0745f3784b98c573f4ad2913
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links that redirect to malicious infrastructure, specifically promoting 'free generators' or 'game hacks' for popular games. The primary lure is to trick users into clicking these links, which are identified as malicious redirectors. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering attack aimed at driving traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/how-to-get-free-stuff-on-roblox-without-robux-game-hack In PDF document text
    • http://sv-nahetal.de/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-free-spins-gratis_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/minecraft-games-online-free-no-download_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/wurst-115_GM479516143.pdfIn PDF document text
    • http://sv-nahetal.de/images/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://sv-nahetal.de/images/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://sv-nahetal.de/images/robuxy-com-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
stream_004_off0000521a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x521A 25824 bytes
SHA-256: 4a49d4a3fbda0d94884cfd4611db41fbf3878ed48021b7a7b5a328621dec0fe2
font_01_sfnt_off00008e1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E1C 18840 bytes
SHA-256: 839fa5e998730e94a326c58ba2e0b97bae2af77b0241498473e0fb249d6cb00c

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