Malicious PDF — malware analysis report

Static analysis result for SHA-256 bca55ae01a4fcc04…

MALICIOUS

PDF

36.1 KB Authoring application: Solid Converter PDF
MD5: 00c99f3185d8ae42b420ef55f7b33049 SHA-1: 44f51bb77ae65a972d43bacd9c57fb04754419b6 SHA-256: bca55ae01a4fcc04729d7f97766146a4ea272602b2dae76946557b7c1a1aac6c
150 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are structured as SEO-optimized PDF lures. The embedded content, though heavily obfuscated, mentions 'diabetes insipidus and mellitus diabetes', suggesting a deceptive lure to a website. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or a scam. The primary IOCs are the numerous embedded URLs pointing to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://avirllavigne.com/uploads/1/3/0/2/130288448/6225178.pdf
    • http://junkbond-losses.com/uploads/1/3/0/5/130539818/samefezix_rozidobigojoto.pdf
    • http://blackmakeupartistla.com/uploads/1/3/0/6/130604295/2079553.pdf
    • http://noyirionworks.com/uploads/1/3/0/6/130620756/b3cb6fa4022.pdf
    • http://mybestloanrate.com/uploads/1/3/0/6/130604427/ae8f268c845.pdf
    • http://absoluteblisstexas.com/uploads/1/3/0/9/130970008/91822fc40de67.pdf
    • http://lisacushman.com/uploads/1/3/0/5/130548070/2866774.pdf
    • http://midamericanthermal.com/uploads/1/3/0/4/130436074/mafovufuletof.pdf
    • http://ballalae.com/uploads/1/3/0/5/130542769/godukape.pdf
    • http://monasterios.net/uploads/1/3/0/6/130604615/9886466.pdf
    • http://qpd6s6.bdgct.com/uploads/1/3/0/4/130488891/130488891.html#insipidus+and+mellitus+diabetes

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000037cd.bin
135ae354db31640901b671f1e24faf110e3a88b0b4cb4787c26a2e3e85e28295		 pdf-font-stream PDF embedded font (sfnt) at offset 0x37CD 7832 bytes

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