Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9075f407ececf43…

MALICIOUS

PDF

46.9 KB Created: 2020-08-14 05:42:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 32de88ae05a4b245030915ce0a656dd8 SHA-1: 6b708cf5cd6ade1b2592ec16f3cc1d333dec8ae2 SHA-256: d9075f407ececf433bff770f07545ecc8676bd201e85f638e10f04d2edf7d95a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains the same URL and text related to architectural orders, suggesting a lure to disguise the malicious intent. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful 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/wb?keyword=orden%20dorico%20jonico%20y%20corintio%20pdf In PDF document text
    • http://files.noltextruss.com/uploads/1/3/1/4/131437599/f66f2ed.pdfIn PDF document text
    • http://files.tombuckland.net/uploads/1/3/0/9/130969965/zumitotita.pdfIn PDF document text
    • http://files.townesquaresalons.com/uploads/1/3/0/9/130969936/7eb60.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/laxefasigapabaxirasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2597/2904/files/mivewajozat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kirojaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1062/9532/files/viremusin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5857/8086/files/58645826948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4462/5813/files/93945015396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/iti_electrician_tools_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1185/0918/files/81486724339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0348/3036/files/ielts_academic_writing_samples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/denadeximutimodowum.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A8E 4720 bytes
SHA-256: 1205fe1cb29aa0e982359a0c09780c818109018ad9ab5eef93327d9a618a5de3
font_01_sfnt_off00007ab3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB3 11296 bytes
SHA-256: 001e53a69ec3635c0e313738d7906cf19a33d048cbc819da1a8ff1aeb489a84e
font_02_sfnt_off00009eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EEB 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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