Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e600cdf7c53ad22…

MALICIOUS

PDF

71.0 KB Created: 2020-08-19 20:10:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c1921d37b56642233de849eb55810d96 SHA-1: 334a4a57fdeea872f71299a0f3eee6228345f6c8 SHA-256: 7e600cdf7c53ad222a5dcfccf272cb948613e106bacc0a56dfddfa9b28018088
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically identified as a link farm for SEO-based phishing. The primary redirector URL is "https://ttraff.cc/pify?keyword=yandex+music+er+firefox", which is designed to lure users with promises of free downloads. The ML classifier strongly indicates maliciousness, supporting the phishing and redirection attack pattern.

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/pify?keyword=yandex+music+er+firefox In PDF document text
    • http://files.tankuanaw.com/uploads/1/3/1/3/131379612/eda4253071.pdfIn PDF document text
    • http://tisexa.hiddenvalleymammoth.com/uploads/1/3/2/6/132680955/jakarofaredos.pdfIn PDF document text
    • http://lufep.midnightbordercollies.com/uploads/1/3/0/9/130969352/8ea67c6a53a0.pdfIn PDF document text
    • http://majuda.ushooker.com/uploads/1/3/2/6/132682052/nabelurigo-letelaganuw-zigetusejon.pdfIn PDF document text
    • http://kirekanu.stephaniecpassman.com/uploads/1/3/1/3/131398140/3fc7f78.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/1/0432/1142/3902/files/19808226746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/4470/5180/files/pidumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3769/5895/files/tukebujejaxoxomogizitero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2988/1244/files/16797507178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4916/4705/files/92689561232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5601/9109/files/3506715768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45927795399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6164/0352/files/air_pollution_and_control_notes_download.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_off0000d531.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD531 5164 bytes
SHA-256: 3cba5914aec7f06edf498a8f5147c26d067eb6b124950b140e930d74ae5e2b34
font_01_sfnt_off0000e6a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A2 12612 bytes
SHA-256: 8814c994a65f4825157c3d0c8996c5e2fa3851d20704f2e81df8abe036c9962b

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