Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6994d5aa6949b7d…

MALICIOUS

PDF

37.2 KB Created: 2020-08-03 07:36:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 81d8d3a1b32010e6ef76ec1d34c5a60b SHA-1: abd3d4dd252bd82ea43f3f7c11076a57664c9778 SHA-256: c6994d5aa6949b7d3d1100c9b6b17b40eae660e10edcdc930719569cfc9856f2
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Dell 3110 cn drivers' and the malicious URL, suggesting a lure to download malicious content. The presence of a malicious redirector indicates a likely attempt to deliver a second-stage payload.

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=dell+3110+cn+drivers In PDF document text
    • http://files.fastvinylsigns.co.uk/uploads/1/3/0/8/130813732/e9f6eed78d.pdfIn PDF document text
    • http://files.pound4poundathletics.com/uploads/1/3/1/8/131871816/2091625.pdfIn PDF document text
    • http://files.millbrookrotarydirectory.com/uploads/1/3/0/7/130775846/d99ea.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/1/0429/3486/1987/files/64436568794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5555/4458/files/97350652117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8217/7946/files/61787898088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27247465441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7080/7459/files/pejovoniluvopuraf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0926/1220/files/taylormade_r9_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5468/6630/files/40379321381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1034/2559/files/80389690904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/nudafitutak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/kingdom_hearts_2_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3678/7356/files/42956036870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8563/4463/files/40127492684.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_off000053ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53EF 5140 bytes
SHA-256: 7dba892df84a1ab1806fa32a43d23ccffd4bc4573a941af393e23735dacfdadc
font_01_sfnt_off00006592.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6592 10084 bytes
SHA-256: 0198fe34f089b8e3765491abf0789f9913077ad1feac283f324865ba06d0e372

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