Malicious PDF — malware analysis report

Static analysis result for SHA-256 48d5aa45e431dcce…

MALICIOUS

PDF

47.4 KB Created: 2020-08-19 21:41:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c6d99b6f63570dc0a0a116783388c63 SHA-1: b7b088f6dfac338af00d1bdd2121e8efb1ee38f3 SHA-256: 48d5aa45e431dcce197f5ee8dce1c89953817d23abf5ee4fce8edb9254c975f5
194 Risk Score

Malware Insights

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

The PDF document contains a link to a known malicious redirector, ttraff.com, which is disguised as an NCIS: Los Angeles episode guide. The document also features a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic. The primary malicious intent appears to be directing the user to the ttraff.com redirector.

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=ncis+los+angeles+episode+guide+wiki In PDF document text
    • http://files.sheilaberger.com/uploads/1/3/1/4/131482884/3679609.pdfIn PDF document text
    • http://files.colinwhitby.com/uploads/1/3/2/3/132302928/jipotetife.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/1/0433/2303/1720/files/23777391959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8014/6339/files/63901979409.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9314/8313/files/25052506756.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/8990/4021/files/bhikari_film_songs_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0144/files/petebozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0463/2992/files/66012113060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/girotimovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7054/5308/files/kuremutazigozufowedawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9124/5733/files/85981325786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0631/5943/files/business_proposal_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8200/6174/files/double_fitted_sheet_size_uk.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_off00007d26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D26 5268 bytes
SHA-256: fd259e8171b00578a85830dd39f01fd0b1174dd1869c64e1506654efa5a96631
font_01_sfnt_off00008f34.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F34 9908 bytes
SHA-256: ac50bad818ec815e2dd97862703833124c9db34aac84921101a5c14422d97c9e

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