Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfab8effd46dc0fe…

MALICIOUS

PDF

45.3 KB Created: 2020-08-04 19:34:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 979f1a93fde7f6dc40c3f567469690f7 SHA-1: cd0627b9d24bc02c5ee230136f99b2cdae4f31f9 SHA-256: cfab8effd46dc0fe29ded338db5aca45dc9bd90e3d08d71504553d99a8927fa1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document exhibits characteristics of a link farm, embedding numerous external links, many pointing to Shopify-hosted PDFs. A critical heuristic identified a malicious redirector link to 'ttraff.com', suggesting this PDF is part of a phishing or malware distribution scheme. The ML classifier strongly supports the malicious verdict.

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=list+of+industrial+automation+companies+in+pune+pdf In PDF document text
    • http://sipeg.ralfrosskamp.com/uploads/1/3/0/7/130775997/32a7bbc4ba.pdfIn PDF document text
    • http://files.skipsisters.co.uk/uploads/1/3/1/3/131383314/76c0b345ec866.pdfIn PDF document text
    • http://wuxam.dawgstop.com/uploads/1/3/0/7/130739826/8428953.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/1/0435/1311/8872/files/80945563718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6141/9927/files/15254948066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2307/9323/files/vefekuwanafatorof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/bataralonevemexedurapak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5491/3950/files/malusowutusiwukusosabum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9482/6405/files/c_operator_precedence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/41517766416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6987/5111/files/90332723695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7990/1079/files/73777386640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0350/9914/files/kogosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7878/6965/files/vozapodukigujere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9894/8255/files/34309662693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2633/3351/files/59656522897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/90379225571.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 2

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_off000072d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D4 5240 bytes
SHA-256: 19099ea5d7a42aee5190ff6798962464d646dac5c0dc20c9d5ae4657a5a7e497
font_01_sfnt_off00008493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8493 10576 bytes
SHA-256: 26004b0e1a9cceaa570ab8d9f289db9d79f864fa59bde30cb370e77c0097ca13

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