Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f80d8f9d8c71f45…

MALICIOUS

PDF

32.8 KB Created: 2020-06-15 23:01:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0e415313cc7945ad2e7fdb71200b618e SHA-1: d7fb3cbd0d0f6b58cb19f0f3fba2915ad9df3e15 SHA-256: 2f80d8f9d8c71f45255224ebb478b255a579a746bff38ec495017038beef4825
94 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or redirection scheme. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves directing users to these external resources, which could host further malicious payloads or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://millionairemomasia.com/uploads/1/3/0/5/130588468/130588468.html#create+pdf+file+.net
    • http://masternetworkspublishing.com/uploads/1/3/1/0/131070493/898e248de.pdf
    • http://cbcwallace.com/uploads/1/3/1/3/131380487/damarobomejo.pdf
    • http://kiddw.com/uploads/1/3/1/4/131453333/5c9fc6cc132a3c.pdf
    • http://ibbusinessandmanagement.com/uploads/1/3/0/9/130970008/2215242.pdf
    • http://hemp-intl.org/uploads/1/3/0/7/130775800/eea953.pdf
    • http://routestoknowledge.com/uploads/1/3/1/0/131070792/pakesegukakan.pdf
    • http://antraflooring.com/uploads/1/3/1/3/131383998/7663365.pdf
    • http://mta-sts.mail.meetthemessenger.com/uploads/1/3/0/9/130969221/2966009.pdf
    • http://meubnb.com/uploads/1/3/1/6/131637224/lukoxa-rudekurovovi-lepotufaxexazo-giwisapeja.pdf
    • http://webmail.hangarmom.com/uploads/1/3/1/4/131437045/lekasiloku.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_off000054f9.bin
0ea4b9825948ddb6b29b03acdae50943eaece378aa3141182cb338c642570393		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54F9 10424 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.