Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7902614468fc97b…

MALICIOUS

PDF

41.3 KB Created: 2020-08-06 15:44:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b11ec46fa15af744dd53c2bbbc4456b8 SHA-1: 439be3daad7bb93fc23d382d652373e3cf9f2b13 SHA-256: e7902614468fc97b18e7e1195eaefaa7ccbe007e89761db2282328ac66aa18cb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, many of which point to suspicious domains or are part of a link farm designed to manipulate search engine results. One prominent link, 'https://ttraff.cc/pify?keyword=tutorialspoint+advanced+excel+functions+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to PDF and wkhtmltopdf, suggesting it's a crafted document intended to host these links. The primary attack pattern involves luring users to malicious sites via these links.

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=tutorialspoint+advanced+excel+functions+pdf In PDF document text
    • http://files.routestowork.co.uk/uploads/1/3/1/4/131407944/mukemo.pdfIn PDF document text
    • http://files.westfieldbouncehouserentals.com/uploads/1/3/1/3/131384789/4605166.pdfIn PDF document text
    • http://files.gnarwhallaby.com/uploads/1/3/1/3/131379650/d1cef57f0.pdfIn PDF document text
    • http://files.vetbehavioroptions.com/uploads/1/3/2/8/132814935/mokizetudipapa-vavem.pdfIn PDF document text
    • http://balajik.unidadepastoral.com/uploads/1/3/1/0/131070356/3935159.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/1/0434/0000/3747/files/68936899566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4907/3312/files/32074520552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3606/5435/files/73202668422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/3609950847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5281/7832/files/84062625810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3353/4357/files/what_is_righteousness_according_to_the_bible.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0410/8711/files/data_abstraction_and_problem_solving_with_c_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/saladuvunerup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9932/3558/files/47863508233.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1350/3133/files/21655130223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8667/6117/files/lit_to.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_off00006302.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6302 5228 bytes
SHA-256: 63da5c534ff6da0320ca6a7405d6643dedb1ce0d3a4e06cd43042166099e0087
font_01_sfnt_off000074e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E3 10360 bytes
SHA-256: 250b0621694e044dccf92ba82678a82f27e85c29d33381d075f11f685122fe1b

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