Malicious PDF — malware analysis report

Static analysis result for SHA-256 e94533138053f90e…

MALICIOUS

PDF

37.9 KB Created: 2020-09-19 22:45:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f693103655103bb9f7be51a733fa2fd5 SHA-1: 2a0212b9d8dbb54d0030c79839a722c422859261 SHA-256: e94533138053f90ec41e27dca714bed74043674d4f36fb10411aa8e674bdbaae
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded URLs, many of which are identified as malicious redirectors or part of a link farm. The ML classifier strongly indicates maliciousness. The presence of numerous links, including one pointing to `https://ttraff.link/wix?keyword=duracraft+fans+website`, suggests a campaign to drive traffic to malicious sites, possibly through SEO poisoning or deceptive content.

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.link/wix?keyword=duracraft+fans+website In PDF document text
    • http://runuj.ccfsc.org/uploads/1/3/1/4/131406947/rubuwopuvopor_mugiwalikego_jekuxapugune.pdfIn PDF document text
    • http://xosazi.ffcalaska.org/uploads/1/3/0/8/130873995/3b4a1f.pdfIn PDF document text
    • http://files.angiedlee.com/uploads/1/3/2/6/132681482/danuvenutara.pdfIn PDF document text
    • http://xizokupaj.steelcityselfdefense.com/uploads/1/3/1/3/131382030/kolozaxunefogifej.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/1/0460/1354/6657/files/64000060630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8565/0325/files/blufftitler_bixpack_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/7644/7129/files/norwin_school_district_skyward.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8870/5688/files/16789092343.pdfIn PDF document text
    • https://cc6b78ca-781c-4af1-b459-ac613cf1ac38.filesusr.com/ugd/197ed4_0f8dba4fc4d34906a0b8a9216b7c2b37.pdf?index=trueIn PDF document text
    • https://dd448b0c-b8e1-469d-a99a-05c6a0d0382e.filesusr.com/ugd/5262df_79bc6f4e2a4448e099ba28123cad1327.pdf?index=trueIn PDF document text
    • https://68cec2b9-34f3-4165-af32-36be1296548f.filesusr.com/ugd/85c99c_0f590dae945847f5ac4ff5d29dff552d.pdf?index=trueIn 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 2

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_off00005584.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5584 5072 bytes
SHA-256: 260933ff4431a99a0c93aaed9785322039c4b874edd2cbc2e0b1e34a9b50f824
font_01_sfnt_off000066ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66ED 10584 bytes
SHA-256: c09a876c83f66dd3cc53850eab1ea67179ae08bbc22a6d80678491d8279dc2e9

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