Malicious PDF — malware analysis report

Static analysis result for SHA-256 608a41e30c4019ab…

MALICIOUS

PDF

32.8 KB Created: 2021-07-19 11:48:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: ea633ed67b5f3923860fa1da59e69506 SHA-1: 6ef6d6d4f5b694669aeebb87c9897691c8bf59b4 SHA-256: 608a41e30c4019ab56d8d8b12b26739c0ff723b2753550f9eb3bb366c3887ac2
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains embedded links and a visual call-to-action button that directs users to malicious infrastructure. The ML classifier also flagged this PDF as malicious. The primary malicious URL identified is http://netcdn.tw/app/479516143/minecraft-hacked-client-1.12-2-game-hack, which is likely used to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

Heuristics 3

  • 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/minecraft-hacked-client-1.12-2-game-hack In PDF document text
    • http://elearning.mantemanggung.sch.id/__statics/gudangsoal/files/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • https://elearning.mantemanggung.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mantemanggung.sch.id/__statics/gudangsoal/files/freer-pro-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://elearning.mantemanggung.sch.id/__statics/gudangsoal/files/free-college-textbooks-tiktok_GM835599320.pdfIn PDF document text
    • http://elearning.mantemanggung.sch.id/__statics/gudangsoal/files/free-robux-app_GM431946152.pdfIn PDF document text
    • https://elearning.mantemanggung.sch.id/__statics/gudangsoal/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mantemanggung.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://elearning.mantemanggung.sch.id/__statics/gudangsoal/files/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://elearning.mantemanggung.sch.id/__statics/gudangsoal/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mantemanggung.sch.id/__statics/gudangsoal/files/free-minecraft-account-and-password_GM479516143.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_off00002dbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DBF 21980 bytes
SHA-256: 267c5705276a22e4b83993291189596d9a55f08bcf60deebd2aa01940bef66a1
font_01_sfnt_off00005e3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E3E 18280 bytes
SHA-256: 63e0cf813ec8bc820137db86bcb3617ef7dd45146c6ac783cccfa5d71b9aece7

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