Malicious PDF — malware analysis report

Static analysis result for SHA-256 40c0ae9d344e2e8b…

MALICIOUS

PDF

44.0 KB Created: 2020-08-15 12:26:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 09882bac50229992f62383e3cd7b884b SHA-1: 123520a34b13396d07c20bb8939454c51f605b03 SHA-256: 40c0ae9d344e2e8bb681de301e9f8d94b1aabdd64c2799e7fa5018ffd7a6270d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends

The PDF contains a significant number of embedded URLs, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the link at https://ttraff.com/wb?keyword=lead%20time%20in%20supply%20chain%20management%20pdf points to known malicious infrastructure. Additionally, the 'PDF_SEO_LINK_FARM' heuristic suggests the document is part of a link farm, likely for SEO manipulation or to distribute traffic to various sites. No scripts were extracted from this sample.

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/wb?keyword=lead%20time%20in%20supply%20chain%20management%20pdf In PDF document text
    • http://gokova.13rays.org/uploads/1/3/1/4/131407315/6fb19.pdfIn PDF document text
    • http://lepoba.rustfiftyfifty.com/uploads/1/3/1/3/131398140/zelelipesudezosepafo.pdfIn PDF document text
    • http://files.yvfoodhub.com/uploads/1/3/0/8/130814232/pizugenugu-sapobikapatoxog-kogigez-xosimeko.pdfIn PDF document text
    • http://files.thebrainybrunette.com/uploads/1/3/1/4/131453904/5774775.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/1/0438/7520/5288/files/lexevekewotatop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9567/8357/files/joxiduko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5247/3243/files/widut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/tonipubojakak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1403/7397/files/76309588526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9472/8103/files/gulof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/30519133329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4291/3955/files/37794058822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4503/4911/files/marathi_biodata_for_marriage_in_word_format.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 6

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_off00006c04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C04 5516 bytes
SHA-256: aee0e6d18cf938333c599ee9c6a1935c139dd44747dabc562ed5af5e43966b4b
font_01_sfnt_off00007eab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EAB 10656 bytes
SHA-256: f9c5aa165e5f130fbb3a3405e2d2014aecb4ac0213db8f6a275dd52ad2c10b81

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