Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e0fd2be3fabec0f…

MALICIOUS

PDF

52.4 KB Created: 2020-08-07 08:08:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 45f59c557a19b0ef088300c45bb88cc3 SHA-1: 9deaefb5d99ff42bd1c68af9c0b679fb56826982 SHA-256: 4e0fd2be3fabec0ff88539c0a22f36ec04d1e44538484eddd526b2c32323453a
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This suggests a link farm or redirection tactic to obscure the final malicious destination. The document body, though heavily obfuscated, contains the malicious URL, indicating the primary intent is to redirect the user to potentially harmful content. No scripts were extracted, limiting further analysis of execution chains.

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=copepods+culture+pdf In PDF document text
    • http://files.excellenteagle.com/uploads/1/3/0/8/130814043/kinadotaw-samuvom.pdfIn PDF document text
    • http://files.urbanvolleyballclub.com/uploads/1/3/0/7/130776519/pugumugu-dirugeb-gesubuvadeg.pdfIn PDF document text
    • http://files.ninastanic.com/uploads/1/3/0/8/130873810/nited.pdfIn PDF document text
    • http://files.nejumpersassociation.com/uploads/1/3/1/3/131382239/1068399.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/1/0428/9835/8432/files/kupesuditijativerawepafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3574/4673/files/12460171588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6009/9222/files/lobivedudogumoxatudeges.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1858/3192/files/76477959507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0389/6217/files/67693843178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7829/5450/files/befusevatarunuvuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2329/3864/files/98861814752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5913/5132/files/kitchenaid_superba_refrigerator_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5536/6822/files/auditoria_administrativa_franklin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7598/3778/files/sizenuzaledi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0372/2402/files/nufabivukakati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9634/9602/files/41921041434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/taxarumevevoditonufem.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_off00008a74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A74 4844 bytes
SHA-256: 4c272be3d524acf634efb5c86da63a0b583702789836aec9ac710d31017f799a
font_01_sfnt_off00009af8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AF8 13464 bytes
SHA-256: 23f453a704ad1aca0eb40fd2a2edad660223f966543853d93128155ee4dd5b44

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