Malicious PDF — malware analysis report

Static analysis result for SHA-256 867ab411814a60a5…

MALICIOUS

PDF

41.2 KB Created: 2020-08-26 01:48:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 47e466485f992c383cae00acca3fd3d3 SHA-1: 28d07f6503c6d672cd5b886d5bbac3b72d91f6a1 SHA-256: 867ab411814a60a52d91d3000e18c6910d657fad16409c0c2066b681d408916b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. This redirector, 'https://ttraff.cc/pify?keyword=not+in+our+house', is likely used to obscure the final malicious destination. The presence of a large number of external PDF links, many pointing to Shopify domains, suggests an attempt to create a link farm for SEO manipulation, potentially to disguise malicious activity as legitimate content. The ML classifier also 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.cc/pify?keyword=not+in+our+house In PDF document text
    • http://files.suncoastsoul.com/uploads/1/3/1/3/131379612/baretanemomimu.pdfIn PDF document text
    • http://files.mrazfamilyfarms.org/uploads/1/3/1/6/131606150/b2df21ddc4a.pdfIn PDF document text
    • http://kozujobo.witnessprism.com/uploads/1/3/2/7/132740228/42fc963.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/1/0433/9928/2845/files/compendio_catecismo_de_la_iglesia_catolica_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8664/2336/files/autoclave_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6187/9719/files/kufadivebowalerel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2666/1023/files/isc_license_vs_mit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4356/0346/files/first_law_of_thermodynamics_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0472/3349/files/17228906351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8555/2034/files/bsi_iso_9001_logo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2342/3912/files/mastering_the_art_of_french_cooking_chomikuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8996/0861/files/dupibazasesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4976/1433/files/gta_san_andreas_rom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8870/7733/files/adding_mixed_numbers_with_regrouping_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7797/5717/files/74903796205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/49912170277.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_off0000633a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x633A 4500 bytes
SHA-256: 15f67cedeb8c67fa19c959a714442f8f40fdb082f01683a6a3a790eb573f0804
font_01_sfnt_off0000727c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x727C 11048 bytes
SHA-256: fe94f10074637237fba02b9ac7b79ec7038d81b034edd55bc92749809870fff5

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