Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ca5578db4cd3ffc…

MALICIOUS

PDF

43.0 KB Created: 2020-08-08 22:10:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a24b2622a66c830558239b8b171a84c1 SHA-1: 9571feba0f873409a78683f8d622f3ebde4af435 SHA-256: 0ca5578db4cd3ffc8f1e7335efbec7f26ac6788b9eebd41edef567e5c02d2cfa
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many of which point to a redirector service ('ttraff.cc') that is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting a lure related to 'laboratory safety equipment pdf'. The presence of a mass external PDF link farm and a redirector link strongly indicates an attempt to lead users to malicious content, likely for phishing or malware distribution. The ML classifier also flagged this PDF with high confidence.

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=laboratory+safety+equipment+pdf In PDF document text
    • http://files.ggfloorfashions.com/uploads/1/3/0/7/130776529/ladejibimugerewo.pdfIn PDF document text
    • http://files.artemleaders.com/uploads/1/3/0/7/130775116/e5839db.pdfIn PDF document text
    • http://files.emmais.ca/uploads/1/3/1/3/131398143/26d0fc41c51.pdfIn PDF document text
    • http://files.coachmicheleatl.com/uploads/1/3/1/6/131636806/6749371.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/1/0433/5671/7206/files/4449031102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/70050843380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4343/8244/files/kedoletuxolulefivugaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2695/files/jivadokatekojufarewetesar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/tozelen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/xijafokepufelizazivelizi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6404/9318/files/46036890403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8925/5847/files/28146441802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/sepikudebozutofaferunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4525/6344/files/engineering_economy_sullivan_16th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3910/4917/files/rivabunezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5637/9557/files/pmgdisha_affidavit_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6980/8535/files/86189771670.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_off00006926.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6926 5464 bytes
SHA-256: 0ace082587e303e714db2757906d7e5090fda984721c47c93289bb8d49487364
font_01_sfnt_off00007bab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BAB 10308 bytes
SHA-256: c628b79c905b0790481f50bcff08fec293b2ee9ed8093ba8ae65169764b424d8

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