Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a7ab2beb3194ca6…

MALICIOUS

PDF

43.0 KB Created: 2020-08-04 02:14:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 535b088caa937340651d72c411ff3bc4 SHA-1: d112d41777fa200f17f3927da5532b30d1c68efa SHA-256: 9a7ab2beb3194ca64fa4f8e9a58c9a4297863c019a28e066064376afd6d30ff7
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which points to a URL designed to lure users with a search query. The document body, though heavily obfuscated, contains text related to 'knee strengthening exercises pdf nhs' and the malicious URL itself, suggesting a phishing or scam attempt. The PDF also contains a large number of external links, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or distributing malicious content.

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/pify?keyword=knee+strengthening+exercises+pdf+nhs In PDF document text
    • http://files.sobadagility.org/uploads/1/3/0/7/130775607/puganafoj.pdfIn PDF document text
    • http://files.idealcitydesigngroup.com/uploads/1/3/0/8/130873826/4f42e56363e.pdfIn PDF document text
    • http://files.otticacastelli.com/uploads/1/3/1/3/131383619/dikul.pdfIn PDF document text
    • http://files.bleuprinthairstudio.com/uploads/1/3/2/6/132680986/vomimabizosaxaz.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/1/0431/7079/1573/files/85987010542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31082235151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7300/2906/files/12908742445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pagujusevidunevaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7208/6423/files/tatuduwapokaxakife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3507/4465/files/wofofigorizepomurugewod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4980/3166/files/sigovexumefojumexed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8861/8396/files/33549120452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0835/2679/files/puwusenixenefuvosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7248/6566/files/45651610132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/vakekodogusivavotonedati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2412/0984/files/mivazusazasajupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/pusizudajegu.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 7

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_off00006bd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD8 5212 bytes
SHA-256: eb19e87ad38f847a0a918f3a71ce294673d779a70ccee58cc8b5185350625cef
font_01_sfnt_off00007da0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA0 9944 bytes
SHA-256: 5f954bcf1344c2005f566a019540f1b5c50c6f138a56f0d238d471a459a822c4

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