Malicious PDF — malware analysis report

Static analysis result for SHA-256 589c814143e6e4f5…

MALICIOUS

PDF

46.0 KB Created: 2020-09-22 01:57:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 597cb181d0d75ee58d35fa2f52a5143a SHA-1: d81995076f269ea3b22ef7adbe4e56fbe80a4fe2 SHA-256: 589c814143e6e4f5c134f5de887f8145d23025db041ed7cd69ad0c735114371f
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with several pointing to known malicious redirector infrastructure and SEO link farms. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates a direct link to a malicious redirector, and 'PDF_SEO_LINK_FARM' suggests a large number of outbound links designed to manipulate search engine results. These elements strongly suggest the document's purpose is to direct users to potentially harmful websites, likely for phishing or malware delivery.

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.club/wix?keyword=middle+earth+quest+pdf In PDF document text
    • http://kuzewijo.nourishacupuncturewellness.com/uploads/1/3/2/8/132815986/farelarupitede.pdfIn PDF document text
    • http://kivejabu.josephlorenzen.com/uploads/1/3/1/4/131407089/selidelepovox-pidigoxez-tapoj-fivamasakewusu.pdfIn PDF document text
    • http://files.unboundtravelers.org/uploads/1/3/0/8/130874489/tagiredo.pdfIn PDF document text
    • http://files.stfoafrisco.org/uploads/1/3/0/7/130739713/2616085.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/1/0433/0687/7080/files/65925238695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7346/1669/files/adobe_premiere_pro_cs5_tutorial_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2161/5783/files/dumalujiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6009/2315/files/article_writing_format_class_11_cbse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8954/2809/files/zodewo.pdfIn PDF document text
    • https://10d8c9fe-5e55-4562-96c8-40330427d4a7.filesusr.com/ugd/5b604d_0265af8a6f8c4fbc8eb2949813edcc5f.pdf?index=trueIn PDF document text
    • https://cde890bc-a050-484d-8037-92b9b7a080df.filesusr.com/ugd/61567a_cdaeb206af394e9aba8ba61728ea3777.pdf?index=trueIn PDF document text
    • https://6221ee51-4891-4048-98f1-b7b5d96b0060.filesusr.com/ugd/debbe1_853e19161ca94b63a92ebad71a0a9199.pdf?index=trueIn PDF document text
    • https://ad04b83b-2c71-46da-98f6-b8e513e7b4e6.filesusr.com/ugd/1e533a_6ff9fc945f0344efb731cd7ab17b94fc.pdf?index=trueIn PDF document text
    • https://494c28d1-bf77-490f-8036-6a4e15275f99.filesusr.com/ugd/ede58b_2c9cd05821be4596990a30ce1272e5d1.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9242/7430/files/73589148586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3649/0398/files/topics_in_algebra_herstein.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7027/5236/files/dexowovipugazifosugow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1017/8717/files/83685354558.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007856.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7856 5260 bytes
SHA-256: 627f92284a2764b2a61c34f4b7b861504ef5f7edc1307f992bf6866df09cef94
font_01_sfnt_off00008a38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A38 9620 bytes
SHA-256: f8109c704a1d1a479d5a996ff03ba18e7934ed27038b4a189f79bd84c1df35af