Malicious PDF — malware analysis report

Static analysis result for SHA-256 366695297401417d…

MALICIOUS

PDF

43.4 KB Created: 2020-08-22 18:52:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cca7de5fea5d975d0706014133e922ae SHA-1: a9eaee0e1a30b4857c8c9edd773c3d467abc4739 SHA-256: 366695297401417d30d5d8f7cf6c0bb4eee467793581d46494dfa88c975d90ee
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link that redirects to a malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the text 'Basics of excel spreadsheet' and the malicious URL, suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on cdn.shopify.com, which are likely part of a link farm to improve search engine ranking for malicious content. The ML_NYX_PDF_MALICIOUS heuristic further supports the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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.
  • 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://ttraff.com/pify?keyword=basics+of+excel+spreadsheet In PDF document text
    • http://poremanet.paulguydurbin.com/uploads/1/3/0/7/130775432/vakapizoderidu_marefu_mozugavewolur.pdfIn PDF document text
    • http://bizuvab.katasangkhae.com/uploads/1/3/1/8/131856005/xipajitekijiw.pdfIn PDF document text
    • http://files.michaelstiertherapy.com/uploads/1/3/0/7/130776726/bimuroxo.pdfIn PDF document text
    • http://files.newworldchurch.net/uploads/1/3/1/4/131453333/kixewikegejozited.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3264/8602/files/facebook_page_category.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2400/6820/files/fcs_1_fin_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3595/9191/files/fitapemanat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/72389690988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/3395/5225/files/mubifibubox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2219/5608/files/advantages_and_disadvantages_of_intranet_and_extranet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/0588/7900/files/microsoft_silverlight_windows_10_32_bit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/mugokafokovineg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/pinejunutaxutogobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/25081765949.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C08 5360 bytes
SHA-256: 0e93cb2e94062bf122f4a371784ba8a3016cbe4c687bfe4803d64c4c7d8ef412
font_01_sfnt_off00007e37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E37 10044 bytes
SHA-256: 8e4594b99a3c5206b797e7e7e507a682c0ab1df6f79d5464eb1bcd9b5d989af9

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