Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9bd1c0b35ede627…

MALICIOUS

PDF

33.0 KB Created: 2020-08-23 13:03:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe68db1423edb7a0dfbc2c62fb7669f6 SHA-1: 17fbd220917a545a6aee36fa37ebb0fcdf132dcb SHA-256: d9bd1c0b35ede627c0de64d8d04a2a8b85adac84de6805d73ff9d0356fafd81d
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning attempt. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is presented within the document body as a traffic report. This indicates the primary goal is to redirect the user to malicious infrastructure. No scripts were extracted from this sample.

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=i+10+houston+traffic+report In PDF document text
    • http://files.iwcobserver.org/uploads/1/3/0/8/130813526/rolijudugifepejemef.pdfIn PDF document text
    • http://gudozig.northwestpermaculture.org/uploads/1/3/1/3/131379636/zubelitoragemen.pdfIn PDF document text
    • http://genav.muraleedharanck.com/uploads/1/3/1/4/131483400/2e13730cd.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/1/0437/4170/8437/files/sasiserefopulobumigoziw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7631/2471/files/kodugabidiwedazim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/6619/6903/files/95941430928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4547/7800/files/attention_to_detail_test_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0558/7106/files/batman_beyond_comic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4087/files/un_convention_on_biological_diversity_1992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6256/5795/files/6362944484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tuwupijisunuxavupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6676/9058/files/vowaw.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 4

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_off00004443.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4443 5200 bytes
SHA-256: 9e0eded634217eb399f11b5f1f287ec7843142fa09d01bb16d55e9c3e03aa015
font_01_sfnt_off000055ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55EA 9812 bytes
SHA-256: abb4a5f4aa2e936d91d9f6dc1dcd7ceb1b0b680b3b84cc11fa12d09d188d3f29

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