Malicious PDF — malware analysis report

Static analysis result for SHA-256 e27243427cb33de4…

MALICIOUS

PDF

44.4 KB Created: 2021-06-10 22:31:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3cef99ec599a83688034bef3d815b9f3 SHA-1: b541cff313569d9626dc68621982f835efe0ad58 SHA-256: e27243427cb33de4e66014a62e25c8843c0be0a707333f7738c7142e5a04ebdb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirector domains, including one explicitly identified as malicious. The document body and heuristics indicate a lure for game hacks, suggesting the primary goal is to redirect users to potentially malicious websites. No scripts were extracted, but the embedded URLs and redirector findings strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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-use-cheat-engine-on-roblox-2021-game-hack In PDF document text
    • https://www.wannon.tw/upload/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/coin-master-free-link-spin_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/coin-master-free-spins-link-fb_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/rewardex-robux_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/toolbox-for-minecraft_GM479516143.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/how-to-hack-coin-master-game-without-verification_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/mc-hacks_GM479516143.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/reddit-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://www.wannon.tw/upload/files/free-account-roblox-with-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_off00005062.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5062 24096 bytes
SHA-256: 2a04001bb3ac0d15e51ce53bb062678db38ff42b48ad807d252a1492138d23a3
font_01_sfnt_off000086fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86FE 19444 bytes
SHA-256: 7dd061c360622dbe2e444b2d7e7a98d9c75ef28844c531c1ae721f995fa3fb06

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