Malicious PDF — malware analysis report

Static analysis result for SHA-256 e111d84fcda3e0a5…

MALICIOUS

PDF

48.6 KB Created: 2020-08-03 03:52:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 952a127b886b55bd0dffaa6b6178acd4 SHA-1: 76ac1f3f297cb52ae7beca58df00233d010ff611 SHA-256: e111d84fcda3e0a52f9057306c937f37730996d7e2b3a14194956dfb3e1d0f93
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a malicious domain, masquerading as a search result for a specific textbook. This is further supported by heuristics indicating a malicious redirector link and a PDF link farm. The embedded URLs suggest a social engineering tactic to trick users into visiting potentially harmful sites.

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=silberberg+chemistry+7th+edition+pdf+download In PDF document text
    • http://files.headoverboards.net/uploads/1/3/0/9/130969357/3600127.pdfIn PDF document text
    • http://files.debbieandriullidesigns.com/uploads/1/3/1/3/131379266/seninowule.pdfIn PDF document text
    • http://files.thomasvasasphotography.shop/uploads/1/3/1/8/131871642/7437f41.pdfIn PDF document text
    • http://files.mnwelcomehomevets.org/uploads/1/3/2/3/132302780/ce07a1bbe7.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/1/0432/6716/2276/files/zarivuxulaxodafuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0465/6790/files/gakovomik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0018/4477/files/fogis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/pogawizudipotiriton.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/1-_99_fletching_guide_rs3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7439/6063/files/24900072106.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7097/1299/files/lotixaxotapofuwimesoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5185/9616/files/sifuponunadizesopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8359/4909/files/wigutaxowexiferiwej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3141/3404/files/napabef.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_off000079e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79E3 6084 bytes
SHA-256: 9f9b8b22865b02f9aef246037cba774488fec8d85de55dfe75a009a9bf6e78a4
font_01_sfnt_off00008e88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E88 11608 bytes
SHA-256: fa4d1530584b0b3a323a995f8a8dcffe8870fd2a4e90380475a0cee7bfac9c12

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