Malicious PDF — malware analysis report

Static analysis result for SHA-256 97fbe02bbe936c32…

MALICIOUS

PDF

44.9 KB Created: 2020-08-11 18:56:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c308357f5e04915f5c5669f90a75dbd SHA-1: 4298ef2cc0198986b14d5cf0133001e8c3f21651 SHA-256: 97fbe02bbe936c322f6c746d1e2b5244eec9b35b537cd3ca53e68299234dc567
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF contains a large number of embedded links, many of which point to benign Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Qualified dividends and capital gains worksheet 2017' and the malicious URL, suggesting a lure to trick users into clicking the malicious link. The primary attack pattern involves redirecting users to malicious infrastructure under the guise of providing a tax document.

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.cc/wb?keyword=qualified%20dividends%20and%20capital%20gains%20worksheet%202017 In PDF document text
    • http://dexisuw.visualsbyjacqui.com/uploads/1/3/1/3/131383775/632890.pdfIn PDF document text
    • http://files.utahskillsusa.org/uploads/1/3/1/3/131379830/471130a4f04.pdfIn PDF document text
    • http://files.ianglassfitness.com/uploads/1/3/1/8/131857305/wuxexax.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/1/0428/9894/8255/files/98074715217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/30128291089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0645/1094/files/wedag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7824/5781/files/release_me_j_kenner_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0433/8073/files/rirufafaxogumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52657742202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1126/7990/files/10624018631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6953/6411/files/psychology_books_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2353/1175/files/kuxevejagar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/adobe_photoshop_cc_2020_full_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5910/9279/files/50688082210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0433/8073/files/pdf_split_sejda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/4956/8667/files/stay_strong_demi_lovato_free_download.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 5

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_off00006c42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C42 6100 bytes
SHA-256: b6db8b0db048bd30a9884feaf65aee33f07348e38961abc09afe13f3dd908e00
font_01_sfnt_off00008127.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8127 11028 bytes
SHA-256: e495a9129cf66bfa391f52e48e0ea6c223cbeccfbf03ce7978d73355e4c9a2aa

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