Malicious PDF — malware analysis report

Static analysis result for SHA-256 944c05ecf80cb783…

MALICIOUS

PDF

52.4 KB Created: 2020-08-10 04:01:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1b7fd396f7fb8e2ef9fe1a42e44edfb6 SHA-1: 71e13657282f30a2d159a146fce46b8e216beb80 SHA-256: 944c05ecf80cb7836b4f3f778f1c20674e948509c84095463424856c1270f11a
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL is https://ttraff.com/pify?keyword=ate%25C5%259Ften+g%25C3%25B6mlek+pdf+oku, which is likely used to redirect users to a phishing or malware download site. The document body text, though heavily obfuscated, contains references to PDF reading and the wkhtmltopdf tool, suggesting a lure to open the document.

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.com/pify?keyword=ate%25C5%259Ften+g%25C3%25B6mlek+pdf+oku In PDF document text
    • http://files.tuhstakeout.com/uploads/1/3/1/4/131453649/7240027.pdfIn PDF document text
    • http://files.ardenandscott.com/uploads/1/3/0/7/130740166/vizekilolefevobu.pdfIn PDF document text
    • http://lakegegum.markmunzertcowboypoet.com/uploads/1/3/0/8/130813834/6388677.pdfIn PDF document text
    • http://files.centolapiano.com/uploads/1/3/2/7/132710569/xakakexe.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/1/0433/1234/9334/files/niwevemoloverigeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8423/4398/files/differential_equations_polking_boggess_arnold.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2606/1224/files/pigovimawiwog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8000/0422/files/xowodudotalasipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8737/9094/files/17445765860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5679/9647/files/99387242145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4865/5265/files/56285163223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0658/3203/files/16518425930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6738/3713/files/ielts_academic_reading_practice_test_3_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8406/3654/files/56987481091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/peregomosurexezobosezob.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_off00008b83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B83 5316 bytes
SHA-256: 09b56f22ad53779494f9ae9887d12a5e8cd5b4417ac20ade49f4cc6015cf2bdd
font_01_sfnt_off00009d54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D54 12424 bytes
SHA-256: 304d9283f6ccca4bcecf35c330c068e443884453fb9a85cf9c69af4447c03f70

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