Malicious PDF — malware analysis report

Static analysis result for SHA-256 8188100dca65a04f…

MALICIOUS

PDF

43.5 KB Created: 2020-08-14 20:22:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3f008b4a2cff81cd5455276d1c25f269 SHA-1: e9b7e2a1cea4ba5b300bece232f340a056ee027d SHA-256: 8188100dca65a04f54d7609fc09a991f2fb3ed0f7943f6d4b823de6dfc94d79f
194 Risk Score

Malware Insights

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

This PDF document contains numerous links to a redirector service, which in turn points to various PDF files hosted on Shopify. The primary redirector URL is identified as malicious. The document body, though heavily obfuscated, contains references to the fishing report lure and the malicious redirector URL, suggesting an attempt to trick users into visiting malicious infrastructure. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or redirection campaign.

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=caddo+lake+bream+fishing+report In PDF document text
    • http://files.artbyminh.com/uploads/1/3/0/9/130969300/nesukowugubob.pdfIn PDF document text
    • http://sigexe.imaginationtoimagery.com/uploads/1/3/0/7/130739048/pinaze.pdfIn PDF document text
    • http://files.thevamcommanders.com/uploads/1/3/0/7/130775623/8594934.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/1/0434/2553/0005/files/biomedical_waste_management_project_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3015/1330/files/49991769497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/lecture_notes_on_advanced_abstract_algebra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xirapekewovefosisukepeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6809/4629/files/technical_communication_10th_edition_mike_markel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2806/5949/files/bacteriologia_clinica_libros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3033/2060/files/57802659099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9149/9935/files/54616309164.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5198/0712/files/97038758629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4537/0528/files/puvowuravofozavik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9681/0396/files/bavikirid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/zanox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1816/5144/files/greensleeves_clarinet_sheet_music.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_off00006b98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B98 5564 bytes
SHA-256: 4a51aad593a8a3e345991e00cc203f314367a82b5895e1dd32221fc6f643d851
font_01_sfnt_off00007e5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E5E 10180 bytes
SHA-256: 3c517f868b4fa7da0035aced3ca448a00edc6893f6eb7dbe4d913b7829cfcaa8

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