Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a7f208547a2eee9…

MALICIOUS

PDF

40.2 KB Created: 2020-03-29 02:08:04 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b76e7292d986532c52dd0cef85422530 SHA-1: 18650888d695bd639d73f6dca60416963c35a85d SHA-256: 1a7f208547a2eee94b294a7818d4af343434d1b0233982923c9143046e4498c6
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are hosted on domains that appear to be part of a link farm. The document body, though partially corrupted, contains text related to literary examples and references to the wkhtmltopdf tool, suggesting a deceptive lure. The primary attack pattern involves redirecting users to a network of external URLs, likely for SEO spam or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://74-123-77-227.mgwnet.com/uploads/1/3/0/3/130313495/130313495.html#ejemplos+de+figuras+literarias+comparacion+en+poemas
    • http://abraxasband.net/uploads/1/3/0/7/130739324/51f6d.pdf
    • http://stop-age-today.com/uploads/1/3/0/2/130270991/8c0a7870b.pdf
    • http://the-urban-advocate.com/uploads/1/3/0/5/130544447/sebedufa.pdf
    • http://www.beingwithoutborders.org/uploads/1/3/0/5/130551004/1344002.pdf
    • http://onehundredpieces.com/uploads/1/3/0/4/130476709/mefowujusajelox.pdf
    • http://winam.net/uploads/1/3/0/4/130435638/3956438.pdf
    • http://podvote.com/uploads/1/3/0/6/130639845/62082308c155.pdf
    • http://cocorayefitness.com/uploads/1/3/0/7/130775320/203821.pdf
    • http://de.janrosenow.com/uploads/1/3/0/7/130776582/dd42a5fc73.pdf
    • http://www.innovationlabs.us/uploads/1/3/0/6/130620420/a08c0ded32bd.pdf
    • http://shedidthat19nc.org/uploads/1/3/0/6/130603776/270ef53aabab8a0.pdf
    • http://sensoryseductions.com/uploads/1/3/0/5/130589251/2912532.pdf
    • http://westerndentaljamaica.org/uploads/1/3/0/6/130639385/b16591772fb.pdf
    • http://heavenlyminkstore.com/uploads/1/3/0/6/130621089/guvomifino.pdf
    • http://fairybrandmom.com/uploads/1/3/1/3/131379324/zesizari-lawuwokuguli-vasenewezaburu.pdf
    • http://www.businessclaimingservice.com/uploads/1/3/0/4/130488223/7448d0.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_off00006fe7.bin
615c854fe987061a368950519b0e1dfbb582890c94a71daf2782f0436739663e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE7 9252 bytes

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