Malicious PDF — malware analysis report

Static analysis result for SHA-256 14819c7a0bba930f…

MALICIOUS

PDF

30.8 KB Created: 2021-07-20 16:07:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 6084836d9de14ed76dfef3c26b35a9b5 SHA-1: c9f339707a2a75967cd0bf866478333e47238c34 SHA-256: 14819c7a0bba930f24bea21eb34679cf908329ea062a3719c3cafd03b870609b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a known malicious URL, masquerading as a 'free generator' or 'game hack'. The document body explicitly contains the URL http://netcdn.tw/app/479516143/how-to-get-a-free-minecraft-server-game-hack, which is flagged as a malicious redirector. This indicates a phishing or scam attempt designed to lure users to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9909

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-a-free-minecraft-server-game-hack In PDF document text
    • https://www.imparadigitale.it/wp-content/uploads/fsqm-files/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • https://www.imparadigitale.it/wp-content/uploads/fsqm-files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.imparadigitale.it/wp-content/uploads/fsqm-files/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.imparadigitale.it/wp-content/uploads/fsqm-files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.imparadigitale.it/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://www.imparadigitale.it/wp-content/uploads/fsqm-files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.imparadigitale.it/wp-content/uploads/fsqm-files/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • https://www.imparadigitale.it/wp-content/uploads/fsqm-files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • https://www.imparadigitale.it/wp-content/uploads/fsqm-files/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • https://www.imparadigitale.it/wp-content/uploads/fsqm-files/coin-master-free-spin-and-coin_GM406889139.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_off00002714.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2714 22004 bytes
SHA-256: 93b28ba4e5d68f3d53c0675605f7bb9e7e71ab325b768583abb728aad7b2a25a
font_01_sfnt_off0000572c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x572C 17988 bytes
SHA-256: 888c9dccd83fb0c13f9447925305c3d56d9429efcbe621f5ab8e9b5d24de1b14