Malicious PDF — malware analysis report

Static analysis result for SHA-256 60bb9f6a34e766c5…

MALICIOUS

PDF

39.5 KB Created: 2020-08-09 15:35:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d35c78f264e7f082150d610d74e01544 SHA-1: c6023d47217b5e012aed2a9337df6cdccc37c1fd SHA-256: 60bb9f6a34e766c553de44662124125f927a664e3d0afe7b9c481b45131d3e9a
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, identified as a redirector for SEO-based phishing. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=assurance+engagement+pdf', suggesting a lure for users seeking documents. The ML classifier strongly indicates maliciousness, and the presence of numerous external links points to a link farm strategy.

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=assurance+engagement+pdf In PDF document text
    • http://files.asacottrelldar.org/uploads/1/3/1/3/131398066/29d3d713096556f.pdfIn PDF document text
    • http://files.mildlyadventurous.com/uploads/1/3/0/7/130775171/8081846.pdfIn PDF document text
    • http://files.gileadtimber.com/uploads/1/3/1/4/131437806/7131442.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/1/0436/4229/0336/files/68850897868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wopeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46946939033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8042/4351/files/busch_gardens_tampa_map_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3319/6706/files/kukozemuxadojejurokipoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58143530911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4397/0463/files/49262298245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0530/3205/files/69247544180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7431/3621/files/kifulajujiromet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5348/2138/files/kebixesexonebesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1234/9334/files/kozizegitizowa.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_off00005d18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D18 5432 bytes
SHA-256: 1b48b6594f6efb3d4a2a667a5922fd71a550edba8681b23142680c6382751879
font_01_sfnt_off00006f7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F7F 10180 bytes
SHA-256: 030064c0dd65173c4faed48b8b4fd08f049819a7bcbdda68711d87766fa80cc2

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