Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae40a699aad4094b…

MALICIOUS

PDF

32.6 KB Created: 2021-07-19 08:21:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8a8bafd046176252b738211e20d69ef4 SHA-1: 8c54609a31ed4983ba473ffabe43c711ea029a86 SHA-256: ae40a699aad4094beb9775b82f3147bac267fce10529e474f90424c82688ab96
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, masquerading as game hacks and generators. The document body and embedded links suggest a lure to download potentially malicious content. While no scripts were explicitly extracted, the PDF structure and embedded links indicate a phishing attempt to trick users into visiting malicious sites.

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/free-minecraft-server-hosting-game-hack In PDF document text
    • https://bluediffusion.it/images/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
    • https://bluediffusion.it/images/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • https://bluediffusion.it/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • https://bluediffusion.it/images/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://bluediffusion.it/images/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://bluediffusion.it/images/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://bluediffusion.it/images/free-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://bluediffusion.it/images/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://bluediffusion.it/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://bluediffusion.it/images/free-robux-generator-no-survey_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_off00002af8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF8 22752 bytes
SHA-256: 56afb65be832482dbc448fa3b824b645244f4d554f81f262bb5719dab5253e0d
font_01_sfnt_off00005dbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DBE 18112 bytes
SHA-256: 3722fe831b56fbf324865bd98e985c80b873b4d61fb4aa2a64332cfc2a086223