Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c5b45dc90284bb9…

MALICIOUS

PDF

15.5 KB Created: 2020-04-03 07:57:40 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 48b6d96bd5893857c31ad2a2e81cbf11 SHA-1: 06f7107da16c8adb711922875ffb3fa089b8a8e8 SHA-256: 2c5b45dc90284bb9ddf03d650029a1ea0400936418fc267d54e53f65a04620cc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF is an image-only document designed as a lure, containing a single clickable link. This link leads to a page that hosts a large number of external PDF links, suggesting a link farm or redirection scheme. The document body itself is heavily obfuscated and contains embedded URLs that point to various domains, likely part of a phishing or SEO poisoning campaign. No scripts were extracted from this sample.

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 15 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://societaenergeticasarda.com/uploads/1/3/0/6/130620449/130620449.html#evaluacion+en+trabajo+social+segun+autores
    • http://birdhousepdx.com/uploads/1/3/0/5/130588380/4491341.pdf
    • http://hanumanhands.com/uploads/1/3/1/0/131070851/3317706.pdf
    • http://autodiscover.susanhilllong.com/uploads/1/3/0/9/130969576/kegujizas_vuxududo.pdf
    • http://soundscapes4u.com/uploads/1/3/0/7/130776855/tokiz-momelifukud.pdf
    • http://ibizadjbooking.com/uploads/1/3/0/2/130273812/6527360.pdf
    • http://localspotshop.com/uploads/1/3/0/6/130620150/7139104.pdf

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