Malicious PDF — malware analysis report

Static analysis result for SHA-256 a92795abcf6f2339…

MALICIOUS

PDF

34.7 KB Created: 2021-06-28 16:51:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d82bca77e3d43cc8d5ab547982ad2e2f SHA-1: 82fb0ce41a6aec190242354f0763748efd93c3c6 SHA-256: a92795abcf6f233929a1e978943ec1b843628bb028aacaf8f391d871adb87ae2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, including one identified as a malicious redirector. The document body text and heuristics indicate a lure related to game hacks and free generators, aiming to trick users into clicking the malicious link. The presence of embedded URLs and the nature of the lure suggest an attempt to redirect users to potentially harmful content or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/479516143/minecraft-skins-download-free-game-hack In PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/roblox-spiel-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/how-to-prevent-getting-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/hwo-to-get-free-robux-with-out-password-or-hacking_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/free-spins-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/roblox-flood-escape-hack_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/how-to-hack-arsenal-ot-fly-roblox_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/cbro-roblox-funds-hacks_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-free-master_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/how-hack-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31CB 22320 bytes
SHA-256: 29c1cfa6f06ac91fd5768fdbd00dfd8afb6320be71fb601e1c405a66afff36b3
font_01_sfnt_off0000636f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x636F 18748 bytes
SHA-256: caac3017402713390db328034182a8378ae11b4318c04c7e478aff4389fa23cd

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