Malicious PDF — malware analysis report

Static analysis result for SHA-256 38400169eda12398…

MALICIOUS

PDF

42.5 KB Created: 2020-11-08 07:02:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 17acc2c91b8d51bd0ad198a2fc68bd9a SHA-1: 656c37e6d1da23e823c99a6cead3926d86666e37 SHA-256: 38400169eda12398baac3412fd5cfd1b671d3b6e11904bb7a978356c8c529e47
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://trafftec.ru/aws?keyword=corry+middle+school+corry+pa PDF link annotation
    • https://jivexine.weebly.com/uploads/1/3/1/3/131380908/3278274.pdfIn PDF document text
    • https://kufojomarolov.weebly.com/uploads/1/3/4/4/134401526/vodobapug_mimawizu.pdfIn PDF document text
    • https://kodopikowi.weebly.com/uploads/1/3/4/6/134659436/686009.pdfIn PDF document text
    • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/molavosojabe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gatiwaraluva/25611173305.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/175927ba-0a69-43a5-bc75-100c0c68da7e/2150349865.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/chemistry_formulas_free_download_in_hindi.pdfIn PDF document text
    • https://gigevuko.files.wordpress.com/2020/11/74507899984.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/68242725.pdfIn PDF document text
    • https://s3.amazonaws.com/xebareto/loxaxozimeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbac9bd7-6306-41cd-b12e-034214664121/68988463384.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/new_city_funding_lawsuit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86056db9-0340-485e-ad59-08408b5aa8a8/77561739674.pdfIn PDF document text
    • https://s3.amazonaws.com/juvosi/78632801026.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6608 5320 bytes
SHA-256: 5c47fd7a274136cd3bd5f838cbdf1f6055d313b8b3170dee3dbc8ccbc482ebaa
font_01_sfnt_off000077f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F7 10844 bytes
SHA-256: d1a0fe3dec0baa1dfc48fdfb6b96df2020a704f93783d5a58956e017143f8621