Malicious PDF — malware analysis report

Static analysis result for SHA-256 d041b4eede77c754…

MALICIOUS

PDF

38.8 KB Created: 2020-08-10 09:43:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 432cb3b8a18ca0500feef25d6a497c13 SHA-1: 16dc57817dead42004f2b4342cc7eacf71029c4c SHA-256: d041b4eede77c7543992775b5d840a64fc103b7ed00d5b6e9a5c79ee502b4fb6
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=capacitor+start+induction+run+motor+pdf'. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution. The presence of numerous Shopify-hosted PDF links, while some are benign, contributes to a link farm tactic to potentially improve search engine ranking for malicious content.

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=capacitor+start+induction+run+motor+pdf In PDF document text
    • http://files.mariannemcshane.com/uploads/1/3/0/7/130776529/dizen.pdfIn PDF document text
    • http://files.pioneerradio.org/uploads/1/3/0/7/130740112/modajebukuzozi.pdfIn PDF document text
    • http://files.twolidesign.com/uploads/1/3/0/7/130739488/5bed3b2b6a0b.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/1/0432/9809/5272/files/collins_english_dictionary_and_thesaurus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6941/files/jibowibojiluzako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1470/9663/files/learn_python_the_hard_way_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9833/3599/files/excel_formulas_with_examples_in_excel_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3106/8825/files/86092393370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5993/7434/files/innumerable_meanings_sutra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6994/7555/files/7472604922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6285/3794/files/relizilime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6052/6246/files/2014_polaris_rzr_800_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4211/0625/files/numokimuv.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C1B 5172 bytes
SHA-256: 4ec95703bb817ac28ebee4bcca2acc02fb44e0c4460da90cded228a79b339acd
font_01_sfnt_off00006d98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D98 9684 bytes
SHA-256: fa9cc9a5038e59a1a335fd1032b2afcf4c63888e5d3a7f7f38f24964d64511b9

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