Malicious PDF — malware analysis report

Static analysis result for SHA-256 1429b5ef35bd6b56…

MALICIOUS

PDF

38.2 KB Created: 2020-08-13 02:56:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a3221ad91f5d424dfde2af1e7f72f3ca SHA-1: ee2b1f852e3128d823794319b74011e1c74a5244 SHA-256: 1429b5ef35bd6b569618809d558a79f59e3fad3491d47144423f8aa297d95a71
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one to a redirector at 'ttraff.com' which is flagged as malicious. This redirector is presented as a manual for 'Endress hauser rsg30 manual', likely a lure to encourage clicks. The document also hosts a large number of links to PDFs on Shopify domains, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly indicated maliciousness.

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.com/wb?keyword=endress%20hauser%20rsg30%20manual In PDF document text
    • http://files.londontoursatnight.co.uk/uploads/1/3/0/8/130813645/7311200.pdfIn PDF document text
    • http://files.hfesa2019.org/uploads/1/3/1/3/131397938/973408.pdfIn PDF document text
    • http://vofilo.misswinniesabc.com/uploads/1/3/0/7/130775940/fikumaguwapewegu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/31038347844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9245/1232/files/widedetafike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8163/8812/files/dinugamawuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5106/5243/files/xejidixex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/baputonapamira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1863/3894/files/walexexorig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1781/3661/files/adversus_haereses_portugues.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9640/8218/files/applied_science_mcq.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3568/1180/files/morokubadedutoparupur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4664/7446/files/historia_de_las_asambleas_de_dios_del_peru.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4876 5148 bytes
SHA-256: 18ba2d86d4f008ddaede58696a03e04b08d7cf92e52c2a640fbc1c61f48048b4
font_01_sfnt_off000059b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59B3 11272 bytes
SHA-256: 01a0cc1c6981f0681b6747f5b4a4d48bd5de736b40f72e4819aa9b547eb99aac
font_02_sfnt_off00007e1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E1E 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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