Malicious PDF — malware analysis report

Static analysis result for SHA-256 10663ddeb9f929ba…

MALICIOUS

PDF

42.4 KB Created: 2020-08-01 10:17:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce41dd780f7ed9f0d8955f4e459d8ac6 SHA-1: d89d3d7c0fab461210ad5a8f8f94aafff5f24b45 SHA-256: 10663ddeb9f929bae34916d39481d594a21020cf7c5803edf998d91195b9fb90
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded links that redirect to a known malicious URL, disguised as a free download for a theological book. This indicates a phishing or scam attempt, likely to distribute further malware or steal information. The presence of numerous external PDF links suggests an attempt to manipulate search engine results for malicious purposes.

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.ru/pify?keyword=wayne+grudem+systematic+theology+pdf+free+download In PDF document text
    • http://files.smithwlac.com/uploads/1/3/0/8/130874382/3a9d04cdcfd0.pdfIn PDF document text
    • http://files.jinhui-mechanics.com/uploads/1/3/1/3/131383548/lewesedoros-xuganuxavo.pdfIn PDF document text
    • http://files.michisboutique.com/uploads/1/3/1/3/131398547/5b6be.pdfIn PDF document text
    • http://files.ionaabbeyandclandonald.com/uploads/1/3/2/6/132682119/4808946.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/1/0436/8583/9003/files/ruxewalokan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3611/4076/files/kubota_parts_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7070/9142/files/3999998909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6919/1832/files/mepesebubixawewuwivameg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0684/3288/files/74275587745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4664/1570/files/jetamoferi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5768/4375/files/fekod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8978/0124/files/97675338208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6063/3504/files/89599623313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6617/1293/files/97292344726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/xakolibiwejabadolurarimur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1172/5723/files/xufupebimorikudupewen.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 8

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_off0000634e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x634E 5776 bytes
SHA-256: 92b8c82ae36e82c69182b774ceaf2d1111369b1a6c46407804f29f312ff74701
font_01_sfnt_off000076fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76FA 11160 bytes
SHA-256: a2d82006c8b1ad511708584ad91f43ab3d940500b5a39de81d33886b601bad8f

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