Malicious PDF — malware analysis report

Static analysis result for SHA-256 749d238cc86d281f…

MALICIOUS

PDF

41.8 KB Created: 2020-08-06 17:49:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9e65a04d7e716ba561c40b0df09326b6 SHA-1: e0d4e93bf6fe915cd8af8cda71a91dd1f9cea491 SHA-256: 749d238cc86d281f9f69c58d9b72cd96502f32de5f428358ccaf190a1d7bc132
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and references to other PDF files hosted on Shopify, suggesting a link farm designed to funnel users to malicious content. The ML classifier also 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=astigmatic+dial+pdf In PDF document text
    • http://files.norcalsmartvestorpro.com/uploads/1/3/2/7/132710655/96f0fa3.pdfIn PDF document text
    • http://files.preparetoperform.net/uploads/1/3/1/4/131407353/a95367624b32b.pdfIn PDF document text
    • http://files.watchusgrowpreschool.com/uploads/1/3/0/7/130739457/xonazakos.pdfIn PDF document text
    • http://fopokuweb.udistrict.micromemphis.com/uploads/1/3/0/8/130813528/9887006.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/1/0428/6572/1503/files/94281987947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4243/0362/files/20830149855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9328/7321/files/86971116318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/88227120704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/71044865555.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4991/7347/files/vikamujinawos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8585/6919/files/borapebujijulat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8864/2197/files/damumusexizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6681/7702/files/maxidiwirajarotilafutet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9693/2505/files/99555025040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/class_12_cbse_chemistry_textbook.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_off00006642.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6642 5368 bytes
SHA-256: d01fb574eabdbff22df015fb38ade2554b71685849afb649fe232243154d86ed
font_01_sfnt_off00007878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7878 9836 bytes
SHA-256: 5e3952757b41f24eeb2ad62693709ef6e9d3fe1bbe73ad99756b3fd55da19b64

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