Malicious PDF — malware analysis report

Static analysis result for SHA-256 eed86cd36726e3e3…

MALICIOUS

PDF

30.1 KB Created: 2021-07-20 04:51:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: b2d0eb57fad64914d3d324cfcefe3c06 SHA-1: 180c7aaa8c333fed8e1a3cafe1edb3111961db29 SHA-256: eed86cd36726e3e31107ba8964891c358128649595b9b2b23b38d0c85b0f31f1
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for a 'free generator / game hack' which redirects to a known malicious URL. The document body also contains a call to action to 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', reinforcing the deceptive nature of the content. The embedded URL is the primary indicator of malicious intent, likely leading to a further stage of compromise.

Machine Learning

  • Nyx PDF Classifier clean score 0.0560

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/minecraft-java-edition-free-download-game-hack In 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_off0000239f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x239F 21808 bytes
SHA-256: bed8db91a9f93e21afaa5146c8879d05a8d7f1f785886a2ca23d3cfe8f005bc8
font_01_sfnt_off0000533f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x533F 18572 bytes
SHA-256: be0be2e0bd1478f571662982334261f36152068b9a395b749ff064ff651796b1