Malicious PDF — malware analysis report

Static analysis result for SHA-256 53005e0364df93b9…

MALICIOUS

PDF

39.4 KB Created: 2020-03-08 09:28:50 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7c3ed2fdec55e60bc8ef4f06c6176e6e SHA-1: 6315dbdb4db22eb57ac1b7dd5b822d5e751b064b SHA-256: 53005e0364df93b9df1a40df8c63ebe172480b11da89eb2e812624bfc8f6a53b
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, identified as a PDF_SEO_LINK_FARM heuristic. The document body text is heavily obfuscated and appears to be junk data, but it does contain a reference to 'icd+10+code+for+chronic+respiratory+failure+with+hypercarbic' which is also present in one of the linked URLs. The primary purpose appears to be directing users to a network of websites, likely for SEO spam or to host further malicious content. No scripts were extracted from this sample.

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.
  • 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://thin56.pleasingfood.com/uploads/1/3/0/6/130621294/130621294.html#icd+10+code+for+chronic+respiratory+failure+with+hypercarbic
    • http://everythingtechwiz.com/uploads/1/3/0/6/130620679/binavanalenug-wedosona-raxetavapa.pdf
    • http://fifthbycressey.com/uploads/1/3/0/6/130621182/gijakef-zinamasenafu-deduvudopor-kikoj.pdf
    • http://mta-sts.mail.childrenofchiangmai.org/uploads/1/3/0/3/130313557/givutirokan.pdf
    • http://naturally-me.org/uploads/1/3/0/2/130271139/0066abb.pdf
    • http://dickpresident.com/uploads/1/3/0/6/130604758/bcbbdf4.pdf
    • http://erikinspires.com/uploads/1/3/0/6/130620561/bebobivibodonirawoja.pdf
    • http://blueprintseo.com/uploads/1/3/0/2/130287281/kixad.pdf
    • http://otstottdesign.com/uploads/1/3/0/6/130640025/8c48fc13.pdf
    • http://kpeladeaumaquilleuse.com/uploads/1/3/0/5/130588579/8678025.pdf
    • http://cym345business.com/uploads/1/3/0/3/130379379/1500712.pdf
    • http://www.osazeeakue.com/uploads/1/3/0/4/130492038/bopuma.pdf
    • http://www.davaronbuilders.com/uploads/1/3/0/6/130639978/lajumubemupemugodopi.pdf
    • http://jamesdolan.sucks/uploads/1/3/0/6/130639885/redinanito.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000072c3.bin
84cac0db8778f1ae8e10a07704c457f9d348d598ce5fff1d7880c37fa6016b70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72C3 7492 bytes

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