Malicious PDF — malware analysis report

Static analysis result for SHA-256 e72709b9e721085a…

MALICIOUS

PDF

39.2 KB Created: 2020-08-12 18:39:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c02de7b62a39e148b7ec4a6a77650f4 SHA-1: 28047fbf58159cf12949b090136f264bba414afa SHA-256: e72709b9e721085ac2d004d9c426be3f37951dc01bbbccea8e3dea283e1b3093
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a mass of external links, many of which are hosted on Shopify, likely as part of an SEO link farm. One critical heuristic identified a link to a known malicious redirector infrastructure, disguised as 'wiper motor specifications pdf'. This suggests the document's primary purpose is to redirect users to malicious sites. 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.cc/wb?keyword=wiper%20motor%20specifications%20pdf In PDF document text
    • http://files.phelpsmuseum.com/uploads/1/3/1/6/131637773/1926303.pdfIn PDF document text
    • http://files.peltperformance.com/uploads/1/3/0/9/130969082/7769419.pdfIn PDF document text
    • http://files.yucalis.com/uploads/1/3/0/9/130969971/bojonotumes.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/1/0435/3998/8648/files/zepuxakidumanadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7921/8840/files/gimasubazuxivojunek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6607/8870/files/easy_classical_piano_songs_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7160/1817/files/zizitulelek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4071/8496/files/30626868992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8130/1158/files/12378513521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7263/2470/files/dymo_labelwriter_450_turbo_driver_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8309/4434/files/67622504084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0485/4435/files/woresimuvitiridizibil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1424/9886/files/3981361302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6372/0613/files/boucheron_logo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/zidekiwazijilikumob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/62141545401.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 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_off00005cf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF4 5284 bytes
SHA-256: 147cbb31a9f0d85ffa0a2b659467d8a25fb088d909214e01bd5bfafc97a8790e
font_01_sfnt_off00006eda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EDA 9700 bytes
SHA-256: 8435c37be62d215a40a0769c7005cff0a49a03d9f77de68852ca88cca7b43515

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