Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ee1f56d5409874f…

MALICIOUS

PDF

42.2 KB Created: 2020-08-17 07:46:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa578a64039eb5c14932c83c2def7788 SHA-1: 03fa244d1fb71f7760e9ec630861db6adee849c5 SHA-256: 6ee1f56d5409874febe5aaf0030659579be8595467abfdeb72e966b3601730a9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one pointing to a known malicious redirector infrastructure. The document body and heuristics indicate a lure for free downloads, likely leading to a phishing or malware download site. The presence of numerous external PDF links suggests a link farm used for SEO manipulation to attract victims.

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=english+vocabulary+body+parts+pdf In PDF document text
    • http://banukiju.hazardhealth.com/uploads/1/3/0/7/130776818/fd8561e07a40b.pdfIn PDF document text
    • http://files.hannkhigg.com/uploads/1/3/1/4/131437626/2754201.pdfIn PDF document text
    • http://wumabovi.holistichealthdiy.com/uploads/1/3/1/6/131637047/8647001.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/1/0432/9163/9968/files/325265210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8378/4601/files/2d_metal_carbides_and_nitrides_mxenes_for_energy_storage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1692/0994/files/excel_calculation_options_change_to_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/66041627676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0381/0716/files/analects_of_confucius_quotes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2962/6017/files/zafitenozibitepax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/data_structures_and_algorithms_in_python_michael_t._goodrich.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1685/5457/files/gofubiditufatebadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3466/4347/files/wolovaropagaxov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2205/6600/files/94628195133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/80489693116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6416/4506/files/bokan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/45070984700.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_off00006623.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6623 5676 bytes
SHA-256: 2468fa4d4c76dcc3109fb2f35dd602f4915ff97a4d0202bebc6342d5b7d43a3c
font_01_sfnt_off00007970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7970 10128 bytes
SHA-256: 4dbce8235530f608582f7eb0fe03311a11ec8984064ddeb396eea3ad235cda09

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