Malicious PDF — malware analysis report

Static analysis result for SHA-256 14a0cc3b38888956…

MALICIOUS

PDF

51.9 KB Created: 2020-07-29 14:01:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 846add3f7d9fabcb779ab62bda3846de SHA-1: a2c43cb8f5f227c1b49046f6679d0b6e65d19c3d SHA-256: 14a0cc3b38888956dd6cc47bb5ab25ef6f8b595ee8d59b27c358d49dae19bd84
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links pointing to a redirector service, which is a common tactic for phishing and malware distribution. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to manipulate search engine results or distribute content broadly. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a malicious document designed to redirect users to external, potentially harmful sites.

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.ru/pify?keyword=xps+as+3740+pdf In PDF document text
    • http://files.rottennow.net/uploads/1/3/1/3/131380467/vulewubora_dovizele_boxevikitufebed.pdfIn PDF document text
    • http://files.valeriecarricatodrums.com/uploads/1/3/0/9/130968968/2927982.pdfIn PDF document text
    • http://files.gregantoursireland.com/uploads/1/3/1/6/131607054/4553254.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/1/0430/8788/8551/files/79854668011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9768/5157/files/vawodevamawenidutef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0288/8351/files/94935308959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/75998153616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1016/9759/files/rizovizufifunifatemijut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7508/4193/files/guvonapawukuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0956/4068/files/42499829656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2429/3794/files/83991327373.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35209966956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8914/9608/files/66002229370.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 6

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_off000082c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C9 4684 bytes
SHA-256: 1bde85daceb5bb817702262514f523b5d421df90fc63c71d4154899e485b5f05
font_01_sfnt_off000092ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92AB 15252 bytes
SHA-256: 4f45f9c4b577e5bd0e6435fce5b846d55538395bddc66a89a508de7150952cd8

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