Malicious PDF — malware analysis report

Static analysis result for SHA-256 40ae8a49909929cd…

MALICIOUS

PDF

43.1 KB Created: 2020-08-04 15:16:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 671a45721d431cd647a9f8f46fead3e3 SHA-1: 57bf47d72e47cc65a7c8c9986eb9f8d39bb21a60 SHA-256: 40ae8a49909929cd2ca26b9e3080422b197ff7109294417e7c011d7c5847c0e7
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to deliver a secondary payload. The document body and embedded links suggest a lure related to automotive products, specifically Castrol Edge. The presence of a large number of external PDF links indicates a link farm SEO tactic, likely to improve the ranking of the malicious redirector. No scripts were extracted, but the primary malicious action is the redirection to a harmful URL.

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=castrol+edge+supercar+titanium+fst+10w+60+pdf In PDF document text
    • http://files.thelakeerieperch.com/uploads/1/3/0/7/130739628/ziwijerusidu-vofixexa-xizemetolumawa-benoxuxex.pdfIn PDF document text
    • http://files.greeknificent.com/uploads/1/3/1/6/131606027/lalepoxisodifa_nilosepoluwofe_fotonelubeki.pdfIn PDF document text
    • http://files.naiadflowyoga.com/uploads/1/3/0/8/130814346/xeduwiraxesojidezi.pdfIn PDF document text
    • http://files.marcusajohnson.com/uploads/1/3/1/3/131381681/razolorapol-mimufizaz.pdfIn PDF document text
    • http://files.patriciacarriganartist.com/uploads/1/3/1/8/131856108/pezerozabegatunanus.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/1/0435/1547/8176/files/73075384568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6360/6429/files/dexosog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3885/0728/files/fuvenerumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6557/2514/files/75318571040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/suvesinuxususara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6299/2799/files/tuxonesuno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9740/0223/files/signals_and_systems_roberts_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/51888911277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0625/4494/files/felogepovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3013/3406/files/vowepisegotariwutanaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/nerubuxadagojusivujas.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_off00005c09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C09 5820 bytes
SHA-256: fb7db4b301855bf00d742613b85c5c2c6d03ef65898bdfea36ba6fc368eceaa3
font_01_sfnt_off00006fda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FDA 15616 bytes
SHA-256: 4a8037af88b8c3928cbaaebb39f5f9472201ba5834783f2370bd74e7d1350435

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