Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb429d707e51bb40…

MALICIOUS

PDF

46.5 KB Created: 2020-08-13 21:52:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb7c098946952c4112c996ab6467d5f0 SHA-1: ec14a75e6f942aefb853a11b91f31a35667be013 SHA-256: fb429d707e51bb4020274499e3944deb340df883d7c13f802a34bb86df1770c1
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including a critical redirector link to 'ttraff.cc'. This indicates a phishing or redirection attempt. The ML classifier strongly supports the malicious verdict. No scripts were extracted, but the presence of numerous external links, particularly the malicious redirector, suggests the document's primary purpose is to lead the user to a harmful destination.

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=coplanar+waveguide+comsol In PDF document text
    • http://files.impetusanimaltraining.com/uploads/1/3/0/7/130775983/13058d.pdfIn PDF document text
    • http://files.familyeyecarelancaster.com/uploads/1/3/0/9/130969340/5052153.pdfIn PDF document text
    • http://files.cakemediahq.com.au/uploads/1/3/0/9/130969735/lakawitowavo.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/1/0437/5710/9402/files/54644024437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3303/3880/files/88499818764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5679/8615/files/jibesiponideru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7807/5036/files/82954365583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/42758301904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5770/8185/files/posevukagadagudo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2782/3778/files/85830319295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2723/4969/files/taxixawanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4100/5480/files/kelujiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4098/8575/files/tubukum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6623/6834/files/1419452958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2734/9159/files/zodepusamikajedipezubazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6809/6661/files/wesuvametoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/desinizo.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_off00007645.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7645 5452 bytes
SHA-256: 7a085c249dbc4098dc9c242473bec6502807e726fec7c52a4b022f960490ed23
font_01_sfnt_off000088cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88CF 10692 bytes
SHA-256: add3578e62ad3df6761be22f60235bcc8980ed2c84c5a131e7590bbafda34199

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