Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d654bb9ba35549a…

MALICIOUS

PDF

41.5 KB Created: 2020-08-01 18:30:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f3296b361a3b74049bd6706fd5a2eb0c SHA-1: 98fa4b82a4eec915cc8f8f0632a7fe394d1ae3f6 SHA-256: 4d654bb9ba35549afd2bd019d7d43178090b8c1f3b21630655939ad39e5f0da5
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=g4+tax+form'. This indicates the document's primary purpose is to redirect the user to a potentially harmful site. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content. No scripts were extracted from this sample.

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=g4+tax+form In PDF document text
    • http://files.richardkfitzgerald.com/uploads/1/3/0/9/130969808/rumanezuvod.pdfIn PDF document text
    • http://files.cocleaningservice.com/uploads/1/3/1/0/131070646/mazuneretofuworo.pdfIn PDF document text
    • http://files.breakingfreeky.org/uploads/1/3/1/3/131381976/mexibasoje.pdfIn PDF document text
    • http://files.kristankoutureboutique.com/uploads/1/3/1/3/131383456/lojozap.pdfIn PDF document text
    • http://files.tnooyi.com/uploads/1/3/0/7/130776607/zatup-fagusavoxejuru.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/1/0428/9835/8432/files/8011835234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4246/4163/files/15667060205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3701/5719/files/31451183942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/janajewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5847/1846/files/daxatufig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51994241049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6576/0151/files/gagiretejolegivitugemog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2361/3595/files/tidegonaviraridisuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8612/7009/files/47032072567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5789/7882/files/divudemevurutopa.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_off000065d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D6 4892 bytes
SHA-256: 3f7f08a2a91bb9ec9a6906225bdc23e943bbddedf32ad92f06839274362255e8
font_01_sfnt_off0000767a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x767A 10320 bytes
SHA-256: 036d9b307bb7c3a7663480b264b7af62cc1c98fe7ee15abc31b8136f99f0556a

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