Malicious PDF — malware analysis report

Static analysis result for SHA-256 424e9b48af0e4d11…

MALICIOUS

PDF

40.5 KB Authoring application: pstoedit
MD5: 53ebbaa8e23dd11ef14dd76b46f90cf1 SHA-1: b8a8eafe8bd02508619f8327f2fde18777d09e37 SHA-256: 424e9b48af0e4d1197d8dea7a7f0c4d552b48e7aab1d5ef470ebc888660dbe39
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs pointing to external PDF documents. This behavior is indicative of a link farm or a distribution mechanism for further malicious content, as suggested by the 'PDF_SEO_LINK_FARM' heuristic. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic-driving intent. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery or execution methods.

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://bootstrappinbettys.com/uploads/1/3/0/5/130589402/6123620.pdf
    • http://diablopepperfarm.com/uploads/1/3/0/6/130621642/4966001.pdf
    • http://eurekaarchitecture.com/uploads/1/3/0/7/130738528/fewisinofe.pdf
    • http://iteroimplant.com/uploads/1/3/0/2/130274091/7231003.pdf
    • http://uteo.us/uploads/1/3/0/6/130620792/3650843.pdf
    • http://newmarkethanaiohana.com/uploads/1/3/0/6/130605072/lanuguna_fadozenutux_vesilubazela.pdf
    • http://saywhatulike.com/uploads/1/3/0/6/130640183/sogowusumale.pdf
    • http://oremonte-kvartir.ru/uploads/2020/01/28/91d343c451b0c5.pdf
    • http://adentanewzealand.com/uploads/1/3/0/6/130620852/8990708.pdf
    • http://miamiflpressurewashing.com/uploads/1/3/0/5/130550672/ginonuxe.pdf
    • http://mertior.com/uploads/1/3/0/4/130483645/melovalulufodewa.pdf
    • http://allamericandogexpo.com/uploads/1/3/0/7/130775297/130775297.html#chorionic+villus+sampling+benefits

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000125b.bin
c53bafed88ec68a2d2f4f7e0b3f0f2275b323ca82e33f1798bb32860955fa3b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x125B 7716 bytes

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