Malicious PDF — malware analysis report

Static analysis result for SHA-256 32748917cfc80ee6…

MALICIOUS

PDF

39.7 KB Created: 2020-08-16 02:00:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4bc38775f93bc1215e9739c3e23f692a SHA-1: da74367571a853707d1df20901f4c487f6bab208 SHA-256: 32748917cfc80ee69202e33cb6d0c8e26b8de3ab06d9d1c114abef7287bdd4c5
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a malicious redirector link, and another identifies a PDF link farm. The document body contains text that appears to be a title and metadata, along with a URL that is also present in the heuristics. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further 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.ru/wb?keyword=accp%20dvt%20guidelines%202016%20pdf In PDF document text
    • http://files.maths180.com/uploads/1/3/2/7/132741149/cb1817c769c0049.pdfIn PDF document text
    • http://files.myceca.ca/uploads/1/3/1/4/131407882/3152607f284c.pdfIn PDF document text
    • http://files.dogtrainingbyhaywood.net/uploads/1/3/2/7/132740498/6571843.pdfIn PDF document text
    • http://nikorol.dawnwilcox.com/uploads/1/3/0/7/130775257/dusig.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/1/0437/8234/0770/files/benazoxoziwunazob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3193/6674/files/vazowaxununokedileroxif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78549170372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/slavery_in_american_literature.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3018/4087/files/51101811488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6690/1148/files/46379640527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2124/6359/files/mifuwirixafemala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0727/0312/files/minecraft_failed_to_login_invalid_session.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2207/2480/files/tuzevanixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5652/8541/files/tc_electronic_d_two.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9347/3947/files/baluwoda.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 4

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_off00005d82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D82 5548 bytes
SHA-256: 633f3c83ce27f66c926dba7bf5ef677e364f7c22404e7eb417d08452ad663210
font_01_sfnt_off00007094.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7094 9824 bytes
SHA-256: f6808796b0a1898426dc678777b16cd8453d387ac14f6b510f1aa1fd317497b9

Open this report in the interactive analyzer, or submit your own file for analysis.