Malicious PDF — malware analysis report

Static analysis result for SHA-256 feaf953176b389e2…

MALICIOUS

PDF

37.0 KB Created: 2020-03-27 13:32:36 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: ec28c85189a968036a3eff152ec8f4dd SHA-1: 7d9365caac653981463ee38e2959ff60758991a4 SHA-256: feaf953176b389e2b6cc7833675d79a6778d6ddac5de1064fe1d981fa8fa88a4
96 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The document body, though partially corrupted, contains a link to 'juliejesternewman.com' and other domains that are likely part of a link farm designed to direct users to malicious content. The ML classifier also strongly indicated maliciousness.

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://juliejesternewman.com/uploads/1/3/0/3/130313359/130313359.html#historia+de+la+empresa+despensa+familiar
    • http://myfitnesssolution.com/uploads/1/3/0/6/130639835/04ea8fb.pdf
    • http://pas-de-mur.org/uploads/1/3/0/4/130488834/xurixigefovotopew.pdf
    • http://spiritualdirectionminstry.com/uploads/1/3/0/6/130604872/xudomajuviwow.pdf
    • http://dylan.shuyukan.ch/uploads/1/3/0/2/130287873/gusafubi.pdf
    • http://amhalford.com/uploads/1/3/0/5/130544131/7536995.pdf
    • http://foreveryseasonco.com/uploads/1/3/0/6/130603709/medug.pdf
    • http://ilgrandegiorno.com/uploads/1/3/0/5/130551876/4844331.pdf
    • http://starcustomsgr.com/uploads/1/3/0/6/130604687/benetirudelodu-ramokakajaraz-biligukawu.pdf
    • http://seedsofsisterhood.org/uploads/1/3/0/6/130639358/1154081.pdf
    • http://thecatapultcoach.com/uploads/1/3/0/4/130435771/liwulemuvujevuta.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_off0000645b.bin
84133dc04ae8e8b8329ae8c3d232311e7d0569b644f6111fec5d81dd7312db58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x645B 9160 bytes

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