Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8c0a36d0e7b76ae…

MALICIOUS

PDF

42.7 KB Created: 2020-08-24 07:44:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ee10ddd8ebc25083cd5ca739f9974dce SHA-1: 043eb8c295a4ca04cc6ad810e37dfb8f08eb95c9 SHA-256: e8c0a36d0e7b76aef2b30867dc7eeef3a55734d1f148092411ab0c74f5ecf938
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.com). This indicates a link farm strategy designed to lure users to malicious infrastructure. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, and the document body was heavily obfuscated, but the presence of the malicious redirector is the primary indicator of compromise.

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=asa+format+annotated+bibliography In PDF document text
    • http://xiduzal.afroverse.org/uploads/1/3/1/4/131438216/limen_wikavimekeko_wazujapazuvit.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/1/0432/0083/9842/files/xonekakafupovone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2563/6248/files/bumimeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/logical_reasoning_test_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0133/0340/files/new_headway_beginner_student_s_book_with_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1342/9655/files/cardiogenic_shock_pediatrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7327/4010/files/jakawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0128/1701/files/how_to_use_carstream_android_auto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8558/6841/files/juxorusakuzop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9521/1680/files/37235728131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3873/5527/files/wuzeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7233/1682/files/cbse_books_for_class_6_maths.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_off000068c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68C2 5688 bytes
SHA-256: a7e0e3b99a4d97e62a3d02ab2fad7700e9ba0f1dc3b2ec46253fa7d173f3bf5e
font_01_sfnt_off00007be8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE8 10072 bytes
SHA-256: 3d51ffbc5a6118ebf9da8ac2e32768816d7c75e03d0a3017c53a115718125b34

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