Malicious PDF — malware analysis report

Static analysis result for SHA-256 03fc9936cf2ee278…

MALICIOUS

PDF

28.2 KB Authoring application: Mobipocket Creator
MD5: 145bd572b951f2b90f9efc455cc860a0 SHA-1: 76dfb356fa94912541f26a794e3cd6f7fcffaef3 SHA-256: 03fc9936cf2ee2781a2b8c7422befb2582a816aafb9ea3672943c58f82c46d3b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by ClamAV and a machine learning classifier. It contains a large number of embedded external links, suggesting a link farm or redirection to malicious content. The primary attack pattern involves leveraging these links, likely as part of a phishing or SEO manipulation scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • 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
  • 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://www.transformationtheatreco.org/uploads/1/3/0/6/130604905/cd314.pdf
    • http://www.handcraftedbyboo.com/uploads/1/3/0/7/130776433/798067.pdf
    • http://bellathevagablond.com/uploads/1/3/0/2/130270831/dutupovunaf-fisejodenisa-kixokapuj-kigebi.pdf
    • http://jacsmacdl.com/uploads/1/3/0/7/130775032/paxola.pdf
    • http://martinacamilleri.net/uploads/1/3/0/6/130604598/xeloxepozava.pdf
    • http://experiencekailua.com/uploads/1/3/0/6/130621248/4212a0f.pdf
    • http://stedwardschoolchristmastreefundraiser.com/uploads/1/3/0/5/130540714/3173878.pdf
    • http://www.megshiffler.com/uploads/1/3/0/2/130272981/56e56fcdaf8.pdf
    • http://nathanielhinton.com/uploads/1/3/0/4/130488063/kamajafilexegavib.pdf
    • http://katdar.net/uploads/1/3/0/6/130621363/lenerazojowafof.pdf
    • http://takeastandforjustice.org/uploads/1/3/0/5/130546392/vanusunelada.pdf
    • http://vps2-internal.pleasingfood.com/uploads/1/3/0/2/130274256/130274256.html#101+helpful+hints+for+ielts+listening+test+1

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000016bc.bin
22e6748a7fdf8654cea2b49ee270ae289e7388a51c2b8b87956226411da996d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16BC 7748 bytes

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