Malicious PDF — malware analysis report

Static analysis result for SHA-256 960653008789b7b5…

MALICIOUS

PDF

33.8 KB Created: 2020-08-22 12:39:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7371c7d404c1d1ee5b89420b01974a46 SHA-1: a3f48d7fd11b27360ecb4850138660b01cffe766 SHA-256: 960653008789b7b5aee1ead1f63ae79cad516e9aafe978865432f355e3852ba3
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, also contains the same URL, suggesting a lure to a malicious site. The presence of a link farm heuristic further supports the malicious intent of redirecting users.

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=baadshah+1999+hd+video+song In PDF document text
    • http://files.reachatweec.org/uploads/1/3/0/7/130738859/nuwodidij_kenozofemuje_rimatorivokus_tazaniwefogox.pdfIn PDF document text
    • http://files.sanbrunodogobedienceschool.com/uploads/1/3/1/4/131452938/494f655.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/1/0434/2376/0536/files/28536200408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3215/8116/files/sirivexaravavut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4130/0375/files/82915262415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3640/0037/files/84501587634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2601/4630/files/lapuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3323/0488/files/xifopoxigujibunaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2834/8056/files/new_technology_in_construction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/pavinareruroximamajutoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3103/6053/files/approaches_to_the_study_of_international_politics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2754/5757/files/74131440287.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 3

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_off0000469c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x469C 5276 bytes
SHA-256: c924a281ecb655cb40c71e99a79f48a0d93e0462b450ba124e7306c0f3ca44ac
font_01_sfnt_off00005896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5896 10020 bytes
SHA-256: 7cc3efe476eacb9b03a3368e2bc820beb5c75916fe83eea0b4e36745ad9b4788

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