Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5bbad1ee44546cb…

MALICIOUS

PDF

33.4 KB Created: 2020-08-18 17:49:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a6dc9970c5f33d28601a87512846515 SHA-1: 1a388b465d2fbbfc826377c3cd2d418a933b52ed SHA-256: e5bbad1ee44546cbf56db45eca569abff67a4e4e683a046dcfe82e6b919e1a5a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a mass external link farm, with a primary malicious redirector URL embedded within the document body. The heuristic firings indicate the PDF is designed to redirect users to malicious infrastructure, specifically identified as 'ttraff.com'. No scripts were extracted from this sample, limiting the analysis to the document's structure and 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.com/pify?keyword=gaali+chirugaali+dj+song++mp4 In PDF document text
    • http://files.speakinitiative.org/uploads/1/3/1/6/131637047/2471bf8.pdfIn PDF document text
    • http://files.usagaslogs.com/uploads/1/3/1/4/131408581/b19098.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/1/0434/6953/7432/files/21905301973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8258/7037/files/61039534340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xopiforosolakalaxelavur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/jexib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9436/7644/files/15602464077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21154843933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6641/7571/files/wevuxudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6518/6206/files/house_cleaning_template_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4664/8473/files/sujet_brevet_2020_histoire_geo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3739/9960/files/how_to_make_file_look_like_a_book.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 2

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_off000045af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45AF 5684 bytes
SHA-256: f2851f8dd97751d48ad1421bd5ccc4a8f9c954108952adca13da46a4362c40d9
font_01_sfnt_off000058eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58EB 9456 bytes
SHA-256: 05b4065cda8cd41d59ce78c71c49d16e936c0b0c527c324b6b782696ce976a7c

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