Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c3eaec4ad3ebf9b…

MALICIOUS

PDF

35.0 KB Created: 2020-08-06 10:25:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 869642371638531610b8bcb1d69423f5 SHA-1: 568b65fc93849c59086d127a6301b3598a312d45 SHA-256: 0c3eaec4ad3ebf9b42a46330f2da24cefd6d44a0f650baaca2b904be34ef16eb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links that redirect to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' heuristics. The primary redirector URL is https://ttraff.com/pify?keyword=jcb+3dx+specification+pdf, which is used to lure victims with seemingly 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.com/pify?keyword=jcb+3dx+specification+pdf In PDF document text
    • http://files.dj-b-fore.com/uploads/1/3/0/7/130739269/0d59f096583e.pdfIn PDF document text
    • http://biwatugu.randolphgardenclub.org/uploads/1/3/1/6/131637016/sinemi-povixijetabef-tifajo-lixujodeja.pdfIn PDF document text
    • http://files.hairbymandybrothers.com/uploads/1/3/1/0/131070866/7811973.pdfIn PDF document text
    • http://files.handymantoledoohio.com/uploads/1/3/0/7/130740165/70b5ee26b54dc3.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/1/0432/6470/4662/files/27192426652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8421/8532/files/53788135860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6202/5624/files/82194372591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8995/9843/files/15515442633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3091/2934/files/irritable_bowel_syndrome_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/about_myself_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/83345874125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2432/6564/files/24024152132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2231/7728/files/joguxuxafudar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6274/7545/files/fevanipinipeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5419/3047/files/26540573719.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_off00004b3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B3F 5380 bytes
SHA-256: cb64c218a85bdd873a8c7e3e23c3f174f5a8bb4c1b6f6f3ffb408e4a0423fc39
font_01_sfnt_off00005d9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D9F 9804 bytes
SHA-256: c82c1762bfd1ddcdff53ed1deb47b775c0089e2ae1d962d7524bcade3adb0617

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