Malicious PDF — malware analysis report

Static analysis result for SHA-256 14321ef922d51f26…

MALICIOUS

PDF

57.6 KB Created: 2020-07-31 23:13:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c98de4f30bed5a18ac1e619a9803a440 SHA-1: 4d61da7c61dab45a127730b9db99ea18447aa069 SHA-256: 14321ef922d51f2617f709f78752ec306b9a470c01f5c857c4bb50593cc6d63e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified as a redirector for SEO-based phishing. The document body, though heavily obfuscated, contains text related to a router model and a URL that is part of the malicious redirection chain. The ML classifier strongly indicates maliciousness, and the heuristics point to the use of redirector links for a phishing lure.

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=linksys+wrt54g+2+v1 In PDF document text
    • http://files.paysprovencal.com/uploads/1/3/2/6/132683130/7c2a6e5982c26.pdfIn PDF document text
    • http://files.radomirtodorov.com/uploads/1/3/0/7/130776476/bimese_jerewojapajixe_niwevirivo_vitiwezijewavo.pdfIn PDF document text
    • http://files.rokforcefusion.com/uploads/1/3/2/7/132741029/noduxekutum.pdfIn PDF document text
    • http://files.thetracegrill.com/uploads/1/3/2/6/132682758/96512311a.pdfIn PDF document text
    • http://files.mariettaoddfellows.org/uploads/1/3/0/7/130739987/gixowifogod-lesitidafimul-desaroz-pubixuj.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/1/0430/1609/3849/files/81896578294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0331/3315/files/53700587003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9542/5191/files/61290343448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7466/7164/files/86311565132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8801/8594/files/dabemelebej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3871/9648/files/zefewajixakegawoxilotuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2844/6358/files/jizuwuvufenesipenurune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/vasapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1722/3847/files/27972522353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9755/4084/files/jurele.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_off0000a307.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA307 5264 bytes
SHA-256: 0ae000241f84b12022b992536300251b8cb27e7671cc6db93976680c9f165538
font_01_sfnt_off0000b53b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB53B 10668 bytes
SHA-256: ec45f4cfcb705e8fd4ebd0ee6700ea74d7125c5e7b079b41e3fd13e91bd37546

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