Malicious PDF — malware analysis report

Static analysis result for SHA-256 023110260f4b393c…

MALICIOUS

PDF

41.7 KB Created: 2020-03-17 03:53:12 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: baf95b99580b7db150ca34d93e2d3770 SHA-1: 967fdbb13f3160331c1e8efc9ba81bbe44dec054 SHA-256: 023110260f4b393c10472f821cd26bae00c8767592e81e15663f9972e719859b
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, forming a link farm. The primary purpose appears to be directing users to a collection of other PDF documents hosted on various domains, likely for SEO manipulation or to distribute further malicious content. No scripts were extracted, and the document body is heavily obfuscated.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://beverlypup.com/uploads/1/3/0/4/130476339/130476339.html#estudio+de+tiempos+definicion+segun+autores
    • http://www.twathletics.com/uploads/1/3/0/6/130639116/losuroriregodamim.pdf
    • http://montcoglass.com/uploads/1/3/0/2/130271171/nugijolil-molidumuwewuxa.pdf
    • http://florendostudioarts.com/uploads/1/3/0/6/130620150/9649989.pdf
    • http://showstock.directory/uploads/1/3/0/7/130739528/6866608.pdf
    • http://realfoodinitiatives.com/uploads/1/3/0/7/130775461/bafevuzegarasom.pdf
    • http://mrnicklawrence.com/uploads/1/3/0/9/130969176/repuzomubowekafo.pdf
    • http://ilovefatjacks.net/uploads/1/3/0/2/130288510/fawizumaduv.pdf
    • http://unmundodesabor.org/uploads/1/3/0/6/130620234/rivikedewebizu.pdf
    • http://strengthandhonor.online/uploads/1/3/1/0/131071066/d60b1f305cea71.pdf
    • http://draygoncrafts.com/uploads/1/3/0/7/130738971/ac4a05c2768.pdf
    • http://bvcustomsewing.com/uploads/1/3/0/2/130288562/df6c19f2b5eafe7.pdf
    • http://marcusphotography.net/uploads/1/3/0/3/130379447/jujelataka.pdf
    • http://northforkyoga.com/uploads/1/3/0/6/130620813/9dec5fde901.pdf
    • http://trishreynoso.tolighting.com/uploads/1/3/0/4/130477775/3ee95e9bb.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_off00007826.bin
e1fad94fe107cfed680771fc1cf06a02cd60c6b8ca94214efc2c474efc86e16b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7826 8656 bytes

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