Malicious PDF — malware analysis report

Static analysis result for SHA-256 573b3399e124336d…

MALICIOUS

PDF

50.7 KB Created: 2020-08-11 14:39:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 846514930f78364c7e458cfba4858805 SHA-1: 6e4f352b78eb229a153066c5f01ba4139a6572f7 SHA-256: 573b3399e124336d134948bb6b815a3fbe4ec1915768598e176a267f57d13d74
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.com/pify?keyword=abraham+joshua+heschel+the+prophets+pdf', is designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains references to the malicious URL and other URLs hosted on Shopify, suggesting a coordinated effort to distribute malicious links under the guise of academic or informational PDFs.

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/pify?keyword=abraham+joshua+heschel+the+prophets+pdf In PDF document text
    • http://files.stonerhospitality.com/uploads/1/3/0/7/130738714/vifigowisipi_vowiput_jaredesu.pdfIn PDF document text
    • http://files.fancyflipevents.com/uploads/1/3/0/8/130815137/2578968.pdfIn PDF document text
    • http://vekut.troyidaho.net/uploads/1/3/0/9/130969754/torewukelewix.pdfIn PDF document text
    • http://dadinusi.whatsgoingonatpoundlane2020.com/uploads/1/3/1/4/131454065/25e69.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/1/0430/6062/5562/files/nuevos_anticoagulantes_orales_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2422/0321/files/begodujexuwow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5761/4741/files/relation_between_cdf_and.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0586/0248/files/pdf_to_word_ocr_thai.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9853/8151/files/19019607325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/likovijejuvupirezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0486/9277/files/14934928142.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85947343199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5704/4904/files/7775897060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49726552648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4837/8266/files/barcode_generator_php.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0508/2776/files/47354561179.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 2

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_off000087d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87D8 5600 bytes
SHA-256: 6ddb54c18dec951acf03b4f3050c359f9e1c73d74a9b763a959c7cdfaaea138a
font_01_sfnt_off00009aba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ABA 10076 bytes
SHA-256: 2908a61b0a521a190f60a259b5220f3a6b2486b38b12d679514a992a3ba942d7

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