Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3f4510834f18e02…

MALICIOUS

PDF

42.2 KB Created: 2020-08-15 17:41:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b49c41f9dbf5d5a75252adf8830e764f SHA-1: ce7241bd78e12c717e7d17be16598df187afc89c SHA-256: c3f4510834f18e02ce727889995c36df136ca13f7c0de992a2a108fb5f81c454
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to known malicious infrastructure, disguised as a document related to firearms safety. The document body and embedded link structure suggest a lure to a malicious redirector. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to 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/wb?keyword=canadian%20firearms%20safety%20course%20student%20handbook%20pdf In PDF document text
    • http://somarifit.mojohomeautomation.com/uploads/1/3/0/8/130814311/4622906.pdfIn PDF document text
    • http://nelerunez.artappraisalfirm.com/uploads/1/3/0/8/130814526/9134269.pdfIn PDF document text
    • http://files.ehheerunner.com/uploads/1/3/0/7/130739776/xujuxal.pdfIn PDF document text
    • https://%3A%2Fbcfirearmsacademy.ca%2Fevents%2Fcategory%2FcIn 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/1/0429/1638/0831/files/sewowixozalopimixudido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7717/9294/files/pezuzaxiwatolekun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/6134/9269/files/ielts_speaking_task_2_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4633/7693/files/npm_run_watch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8827/1777/files/official_sat_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7577/8198/files/samsung_company_overview.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/luzelelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2890/6138/files/nomerarenoronafezulanapip.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 1

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_off00006493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6493 5572 bytes
SHA-256: 39315964c990c438b9bbe170be579311a7213826d6743c353d1fb069ab1e560d
font_01_sfnt_off00007758.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7758 10800 bytes
SHA-256: 0e06cbfca11db0b30d6c1a48b27cc7e8ee903aedbd6981aec697aa7e8fda7963

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