Malicious PDF — malware analysis report

Static analysis result for SHA-256 793e535d6b49921d…

MALICIOUS

PDF

40.7 KB Created: 2020-08-13 05:01:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 984fc4bd5ca6dfc064ab77f88f191dcc SHA-1: ecd9d83c4ca6408c0243798eaff47d5f5619ef9c SHA-256: 793e535d6b49921d5803e778f8e9816a918698879aa65e239d54fa32260a8da4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a primary redirector identified at 'https://ttraff.com/wb?keyword=thirty%20years%20war%20book%20pdf'. This redirector is flagged as malicious and part of an SEO link farm, suggesting a phishing or malware distribution scheme. The ML classifier also strongly indicated maliciousness.

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/wb?keyword=thirty%20years%20war%20book%20pdf In PDF document text
    • http://files.nowmetoo.com/uploads/1/3/1/4/131437535/kudakupira_vagoju_teromawoloj_naxesed.pdfIn PDF document text
    • http://files.theactivelifecoach.org/uploads/1/3/2/7/132712129/liwejogifulufuz-dilekosezokexu-xujaje.pdfIn PDF document text
    • http://files.endhomelessnessla.org/uploads/1/3/0/7/130775823/5760073.pdfIn PDF document text
    • http://fenabipe.verisoftgroup.com/uploads/1/3/1/3/131380042/6504097.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/1/0438/6563/7019/files/install_genesis_kodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/8454161499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/best_self_diary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4680/5404/files/97623733021.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0050/4217/files/rashidun_caliphate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4897/6032/files/fuvewezilabomewive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/lazunixelokudapirapapat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4409/1557/files/191850010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1924/7514/files/54895172414.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_off000061b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61B2 5444 bytes
SHA-256: e8cef7acbe22d27d4be25ab16a1f9c85f463ad8f9f8848ff712301278aed5afb
font_01_sfnt_off0000743b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x743B 9960 bytes
SHA-256: b6b518b30620702bdac88c5f75cadb1b60438c8d26a3eceb069b3b9070305373

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