Malicious PDF — malware analysis report

Static analysis result for SHA-256 9420750649fb0212…

MALICIOUS

PDF

35.2 KB Created: 2020-08-20 11:21:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b4f4dee809c8fd838f9f6091bb0d382 SHA-1: fc726a42e25bdc530253585d4dae9d5f0907aac1 SHA-256: 9420750649fb021225f22dac1405c00ea12533c29f8092d132c7d16408e08d3c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain, ttraff.cc. This suggests a link farm or redirection tactic to obscure the final malicious destination. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL, indicating an attempt to lure the user to a potentially harmful site.

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=holy+holy+holy+audrey+assad+sheet+music In PDF document text
    • http://files.erikaschool.com/uploads/1/3/1/4/131406430/babezakivid.pdfIn PDF document text
    • http://madav.pfoa.com/uploads/1/3/2/6/132680813/kixejuvif_sevoke_sakape.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/1/0434/3165/7621/files/class_behaviour_chart_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4578/1658/files/audi_a3_sportback_2008_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5241/6672/files/29523774986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0504/8994/files/delijepotigavenedifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9899/5864/files/78286308754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6753/0657/files/kotovisupolixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0079/1191/files/balloon_tower_defense_5_android_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5070/2750/files/cahiers_pour_l_analyse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8267/0485/files/decimals_worksheets_for_class_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2838/8772/files/introduction_to_forensic_anthropology_byers_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0897/4235/files/tent_groundsheet_argos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3753/7942/files/327674116.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_off00004512.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4512 5240 bytes
SHA-256: 6e6f785eff2fdd052ce4bbd21a1d848550c4406e26001e60f36dfc44a3b6bd55
font_01_sfnt_off000056bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56BD 13356 bytes
SHA-256: 9fc2641d0fee172914c992efaa0768ee8aa14f5404a6abd37077fb7f990dcc92

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