Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2ca46b64c8519fa…

MALICIOUS

PDF

40.4 KB Created: 2020-08-12 20:53:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b1145f4c540541aba8c35360e0ed7221 SHA-1: b3a0d49a726d4a07920d64c1384e747fb88b7d01 SHA-256: e2ca46b64c8519fa84913241fb5a8f96aeba57ed9685eb401cf814678c2782a5
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.com, which is disguised as a link to an educational PDF. The document body itself is heavily obfuscated but contains references to the redirector URL and numerous other URLs hosted on Shopify and other file-sharing services, likely as part of a link farm to improve search engine ranking and distribute the malicious payload. The ML classifier strongly indicated maliciousness.

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=the+handbook+of+bilingual+and+multilingual+education+pdf In PDF document text
    • http://files.jstello.com/uploads/1/3/1/0/131069812/kuvas.pdfIn PDF document text
    • http://files.theelementsexchange.com/uploads/1/3/1/0/131071157/tagadom.pdfIn PDF document text
    • http://files.shireendamghani.com/uploads/1/3/0/7/130739419/2115747.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/1/0433/0687/7080/files/76222514852.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/632816095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8648/6440/files/gixumerevup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3382/9277/files/45296647622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0733/6857/files/37719589523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2793/1046/files/21017642794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/tekovon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4925/5061/files/99839351400.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1473/3480/files/xijasefujasinelefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7742/7609/files/23385330122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/91025233068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7312/6052/files/borland_pascal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2880/6807/files/simple_past_tense_exercises_for_beginners.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_off00005e5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E5A 5448 bytes
SHA-256: 37386eb4cc412d9418a45000a7b20dce64db56ae33e8f8ce1c4bb8181a2f631b
font_01_sfnt_off000070bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70BC 10444 bytes
SHA-256: 794d6dc681596eff794805ee5a70dd1f4323b7bcb6b96e9b4e11b6269d873dda

Open this report in the interactive analyzer, or submit your own file for analysis.