Malicious PDF — malware analysis report

Static analysis result for SHA-256 74cdb1a2c91f0103…

MALICIOUS

PDF

42.0 KB Created: 2021-05-21 10:39:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 2e1cf8cf7dac660698daea736d18adb0 SHA-1: 5348f1c98ac4c954e3d65515a92e5920837f550e SHA-256: 74cdb1a2c91f0103293c3f36f47e3b0741e534087f5b4349e166aaa5259b7421
110 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains a deceptive lure impersonating Office 365, encouraging users to click a link to download a 'Minecraft Free Download Android Apk'. The embedded URL, https://netcdn.xyz/app/479516143/minecraft-free-download-android-apk-0.14-0-game-hack, is flagged as malicious and part of a redirector infrastructure. This indicates a credential phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0124

Heuristics 4

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/479516143/minecraft-free-download-android-apk-0.14-0-game-hack.
  • 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.xyz/app/479516143/minecraft-free-download-android-apk-0.14-0-game-hack In 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003086.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3086 25916 bytes
SHA-256: f5141248462d0f563870f4e7b1f1acc45ae061a16d8700b55d465006919ab465
font_01_sfnt_off00006b81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B81 3220 bytes
SHA-256: 81e78a71a26d0298e115b2934f978b1cdc87d0550e690a5fd49710ad5808abad
font_02_sfnt_off00007694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7694 2816 bytes
SHA-256: 4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f
font_03_sfnt_off000080a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80A4 19044 bytes
SHA-256: a5267b563baeeb74a90941775a753387a3f7a1649177b0733d928be729f6d9df

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