Malicious PDF — malware analysis report

Static analysis result for SHA-256 eebd19c2b9902e07…

MALICIOUS

PDF

38.1 KB Created: 2020-08-12 21:06:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b923a652a0a526bad6966f22a0499bd2 SHA-1: fa3b21f6bdef727ae3a21a2730726525e4906c08 SHA-256: eebd19c2b9902e07bd69ab68bf5bb62d12d0c33991420beeba66226f6eee9b48
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a known malicious redirector. The document body, though partially corrupted, contains text related to file conversion and the malicious URL, suggesting a lure to a phishing or malware distribution site. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM strongly indicate malicious intent 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.cc/wb?keyword=how%20to%20convert%20autocad%20to%20pdf%20a4%20size In PDF document text
    • http://wipok.bergenandcompany.com/uploads/1/3/0/7/130739415/warikidokigodu-bivebiwiw-semutudawubexo.pdfIn PDF document text
    • http://files.elaborateevents.ca/uploads/1/3/1/4/131453395/95f193dcf288f9d.pdfIn PDF document text
    • http://files.rialtotrophy.com/uploads/1/3/2/6/132682970/dawelenelox_ponuguzuvigejur.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/1/0428/3770/4867/files/56838497074.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6529/5526/files/bibawivetudewaxog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8945/9368/files/58424308755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/favubedezemopazejive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2602/9463/files/jijinixigawigekulageze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6243/5739/files/hogdon_reloading_data.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9946/9464/files/upsc_cms_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/81496608840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3724/5085/files/9290809303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/downloading_don_t_turn_off_target.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4089/1292/files/scott_foresman_science_grade_3_workbook.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_off000055d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55D6 5368 bytes
SHA-256: bd39a7ee6d35edf660b56ae8dfb5fce3b5d396105a8178522909934ad179e11f
font_01_sfnt_off00006843.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6843 10344 bytes
SHA-256: 2ec818ec402b235ab096cb56032d58c8ef56e18cf03bcc83d3b1acb8532a8821

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