Malicious PDF — malware analysis report

Static analysis result for SHA-256 1800ef70b34ca1a7…

MALICIOUS

PDF

34.1 KB Created: 2020-08-23 19:33:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3e344fe710f2246583aff46dfb7460e1 SHA-1: ae9d8b7b692e0bc8065791b3aa36caa7e5e09e95 SHA-256: 1800ef70b34ca1a757d717ef948e0ab6d7772b56e6111721d168f48a79691cc1
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and a URL to a Shopify-hosted PDF, suggesting a link farm or SEO poisoning tactic. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves luring users to a malicious redirector via embedded links.

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=features+of+non+chron+report+ks2 In PDF document text
    • http://files.airbnbcleaningserviceanchorage.com/uploads/1/3/0/9/130970009/9450191.pdfIn PDF document text
    • http://rirulu.jazminoniris.com/uploads/1/3/2/7/132740890/a6cd50cd.pdfIn PDF document text
    • http://files.apollodrivingschoolhull.co.uk/uploads/1/3/0/7/130775427/pubajidef_vebopakujex_mijasupude.pdfIn PDF document text
    • http://files.highperformancecoachkelly.com/uploads/1/3/1/0/131071063/gakib.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/1/0444/8750/8135/files/lijefupobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/zoxetarubudewari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9289/4115/files/nuxikiposubetuzagixidako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/5660/6881/files/angulos_geometria_plana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5087/6578/files/purslane_health_benefits.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2247/8494/files/abecedario_completo_con_imagenes_para_imprimir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6160/0668/files/49348090648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4237/3785/files/xovirasudulagixujipani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/bowoxibetipobonukewovegol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6122/9206/files/types_of_adjuvants_in_immunology.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B4B 5220 bytes
SHA-256: 68d917f9a6f538e0f49a203f2fc77d64b69db1230e7482c3dfe0f3f00f5e0819
font_01_sfnt_off00005d12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D12 8964 bytes
SHA-256: 6a6a43cdb846bc1a3edb694275a3c10bde8c9a3a82ea472ba06e7c8f2c5157bc

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