Malicious PDF — malware analysis report

Static analysis result for SHA-256 6217cf0b3bb9cd8c…

MALICIOUS

PDF

48.8 KB Created: 2020-08-09 09:28:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 50c1a8cd2c0302137e19894a6fb4c939 SHA-1: f0c807ad8e022628f8466b4e79273a79fe315b39 SHA-256: 6217cf0b3bb9cd8ce1a3080c3bf60a985a6cd5629167e0b9a2fecbc7696dac83
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to benign Shopify domains, but one critical link redirects to known malicious infrastructure. This suggests a tactic to disguise malicious links within a larger set of seemingly legitimate ones, likely to trick users into clicking through to a malicious site. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=android+studio+first+app+tutorial+pdf In PDF document text
    • http://vawiwiro.northwoodsbulldogs.com/uploads/1/3/0/7/130739430/timamenibilinav_vuragilire.pdfIn PDF document text
    • http://files.purlieulandscapes.com/uploads/1/3/2/6/132681836/ac05964060f0.pdfIn PDF document text
    • http://files.beadedtreats.com/uploads/1/3/0/7/130775249/324405606.pdfIn PDF document text
    • http://files.awgreekshop.com/uploads/1/3/1/1/131163533/8389527.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/1/0436/9340/8409/files/10988518212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5693/1751/files/79420016192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5201/8337/files/bk_murli_today.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4785/5004/files/79793618807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7247/0686/files/79689808171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9059/9319/files/wexute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1238/2117/files/lamoxegiragodite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/29541758937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7742/5565/files/57405191518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6077/2510/files/suzuki_dr650_service_manual_free_download.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_off00008172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8172 5024 bytes
SHA-256: d252f1cfd40e193c00f496d3118ae9b7e42e831ceae833d54d6b557c661d8afc
font_01_sfnt_off0000929a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x929A 10420 bytes
SHA-256: 3b4b6a64e2ed8c97afe87fc9b3862c8e34bb155064f9d0ae65c4ca1f295d3042

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