Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d8f1a7b73ccf71e…

MALICIOUS

PDF

70.3 KB Created: 2020-08-10 23:11:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cc487804fe5ea2f7d1a248128986591e SHA-1: bc6282330953046b85d10c4e1996f95b5a7d8117 SHA-256: 6d8f1a7b73ccf71e1ebc769592823218df60b0976f964c7a1e9631e44c72c336
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it is a malicious redirector and part of a link farm, designed to lure users to external sites. The embedded URL, 'https://ttraff.cc/wb?keyword=stakeholder%20theory%20the%20state%20of%20the%20art%20pdf', is flagged as malicious. Although no scripts were extracted, the PDF structure and linked content strongly suggest a phishing or scam attempt.

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.cc/wb?keyword=stakeholder%20theory%20the%20state%20of%20the%20art%20pdf In PDF document text
    • http://files.bhspantherband.com/uploads/1/3/1/4/131406149/6ee2479a138.pdfIn PDF document text
    • http://files.iwstreecare.com/uploads/1/3/2/7/132740479/wogupu-zukokitoruwogog-zikezugufada-pubuzesilas.pdfIn PDF document text
    • http://files.ileanaespejel.com/uploads/1/3/1/3/131380001/1136987.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/98629167596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4903/3627/files/3865245864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4918/7493/files/leons_d_orthographe_cm1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/anomalia_del_agua.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0016/7589/files/business_research_paper_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2266/1278/files/ios_6._1._6_jailbreak_no_computer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6881/6544/files/dinubazanutusigiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6700/6364/files/bobcat_s590_specs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0102/7493/files/rutaxirovebonelugifudes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/basic_life_support_training_philippines_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13534048661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7053/7374/files/31320806657.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_off0000d571.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD571 5400 bytes
SHA-256: 5f068070de57bddf0551a461b02160eb057b5585e0798d242794db7be74c3e09
font_01_sfnt_off0000e7c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C4 10748 bytes
SHA-256: e15f0d02e176dc9f0f5de0683c71a558317c8009d86f7c555509ed77d976bfd9

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