Malicious PDF — malware analysis report

Static analysis result for SHA-256 01a166f5c488e141…

MALICIOUS

PDF

41.9 KB Created: 2020-08-15 02:22:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 114f040a31d4f97b056b5a378524e2bf SHA-1: a1735b68fbd7f13895fd5bf558ba0cb00b26e9ce SHA-256: 01a166f5c488e141c2b5245716ff20e822e5ca30e02b9c0b7fd2ab39eeee87c9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links, many of which point to a redirector service that is known to host malicious content. The document body itself contains the primary redirector URL, suggesting a phishing or scam attempt disguised as free printables. The presence of many links to external PDFs, some benign and some unknown, indicates a link farm or SEO manipulation tactic to distribute malicious content.

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.ru/pify?keyword=alphabet+trace+sheets+printables In PDF document text
    • http://files.realtoreducationcenter.com/uploads/1/3/1/4/131407511/zusaj.pdfIn PDF document text
    • http://xotozaz.hanmaumchurchdfw.com/uploads/1/3/1/4/131413418/2549060.pdfIn PDF document text
    • http://mafubu.visuallyaccessiblecities.ca/uploads/1/3/1/4/131438819/bafezawejabep.pdfIn PDF document text
    • http://vupetoxo.2ndhandranch.com/uploads/1/3/2/3/132303382/9154236.pdfIn PDF document text
    • http://files.worth2000words.com/uploads/1/3/0/7/130739570/975082.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/1/0428/2790/7239/files/78076868354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5738/1530/files/27134863616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nimapudusakodinufuzexive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0875/3827/files/tibimam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8860/0478/files/14729811371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9362/2935/files/vodujikugiremu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8512/2984/files/acf_nested_repeater.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/vs_code_spell_check.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7663/2220/files/amides_and_amines.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 4

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_off00006694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6694 5152 bytes
SHA-256: c5f420fdfe2d424acc3e4ee029bcb81eea9380d241d9d9e34a446a71c300cf33
font_01_sfnt_off00007802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7802 10256 bytes
SHA-256: 937a9125ceda1014b82ff518838db847fad20ce539f2808cb8c2d2efe796b2db

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