Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cd85fc1dd8568b6…

MALICIOUS

PDF

36.0 KB Authoring application: Soda PDF
MD5: 29a3df370efd7e6b46e5fc3c25ca8914 SHA-1: 8caf2193c65da0c2922ef5ede7f73e324d1dd5fc SHA-256: 5cd85fc1dd8568b6d9da6f46f35c15422ec36cd091df1d55eba161435365b2a2
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a mass external link farm with 30 links, indicating a likely SEO manipulation or content distribution scheme. Additionally, an invisible link points to a suspicious domain, suggesting a phishing or malware delivery attempt. The ClamAV detection and ML classifier further support the malicious nature of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://thecharme.online/uploads/1/3/0/6/130640123/c159cc5068e0.pdf
    • http://suncityprides.org/uploads/1/3/0/4/130483847/4752800.pdf
    • http://furnishedvancouverapartment.com/uploads/1/3/0/2/130288458/83f516d6230314.pdf
    • http://lulalovely.com/uploads/1/3/0/3/130379058/vubotuxalepijebe.pdf
    • http://x-statics.com/uploads/1/3/0/4/130478484/319046.pdf
    • http://flip02blue.com/uploads/1/3/0/7/130738861/2228426c.pdf
    • http://server0-secure1-portal.online/uploads/1/3/0/6/130639895/vopojuveduv_simigavuza_narojatumewop_turikumimako.pdf
    • http://machinegeneral.net/uploads/1/3/0/2/130272493/lorojuzeged.pdf
    • http://theschizo.net/uploads/1/3/0/6/130639445/6742402.pdf
    • http://elateyoga.org/uploads/1/3/0/6/130621045/3750557.pdf
    • http://thebimbeboutique.com/uploads/1/3/0/7/130776056/momenevilo.pdf
    • http://arapaho-massage.com/uploads/1/3/0/4/130476557/6379835.pdf
    • http://taocostarica.com/uploads/1/3/0/4/130435813/7943044.pdf
    • http://tailorshoe.com/uploads/1/3/0/7/130740571/dimujobejigimipik.pdf
    • http://myhealthadvice365.com/uploads/1/3/0/7/130776260/nejor.pdf
    • http://fengshuiyourspace.org/uploads/1/3/0/5/130551726/130551726.html#adobe+scan+to+pdf+app

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f59.bin
e5f63e9e532b7ec97977c6e24ebf5095bcb78b98fb47de7f0f4596e24bf414fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F59 9132 bytes

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