Malicious PDF — malware analysis report

Static analysis result for SHA-256 80a79bcb7e4fcb32…

MALICIOUS

PDF

44.1 KB Created: 2020-07-29 04:23:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8836d9517e906a1e4fd623d91bc32d4f SHA-1: 6b07cd459b73f0ebf87a4ad92962366a5ca822e8 SHA-256: 80a79bcb7e4fcb32d46fa7631205dfd813aa484b95b2d74f05dec993409ce52f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains embedded links pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to tax worksheets. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination and potentially distribute further malicious content. The ML classifier strongly indicates 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=schedule+d+tax+worksheet+example In PDF document text
    • http://files.mosston.school.nz/uploads/1/3/0/8/130814877/0986f8c.pdfIn PDF document text
    • http://files.plekhanoff.com/uploads/1/3/1/3/131381414/4b97c4f494d9.pdfIn PDF document text
    • http://files.metroeastinterfaith.org/uploads/1/3/0/9/130970009/linuwanewopa.pdfIn PDF document text
    • http://files.mrperformancetraining.com/uploads/1/3/1/1/131164157/pedigeje.pdfIn PDF document text
    • http://files.carolineshanley.com/uploads/1/3/0/7/130738924/246df8b4dd9.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/1/0430/8969/0773/files/65413960723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8731/2536/files/72665171893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57189589950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9865/1288/files/wefonaxevibigotineboxuzem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/95394580584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1431/5422/files/kebexiwowalumipofitetaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4916/4698/files/mejudoniziwuleruvadava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7682/0890/files/18113857430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0973/5845/files/63076126521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9372/8158/files/kewiwapafegaj.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 7

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_off00006e0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E0D 5368 bytes
SHA-256: 18479c86a07dafb226f0fa769c18239dc1df2b93d6a062678f32369be3f28f86
font_01_sfnt_off00008059.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8059 10220 bytes
SHA-256: 5956cc6318c50da1731c763867b55c9f792e9e1b04331bd029b688451b777eb1

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