Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea75f1488b54b0b5…

MALICIOUS

PDF

41.8 KB Created: 2020-08-17 16:59:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4573fe703fe28d198438bb4e7cf7e8ff SHA-1: 4c5a22229c39273f47465296edab995c708c5d70 SHA-256: ea75f1488b54b0b50eb88dcf3a1bb585aa6a72178a4f04de19cea30699a9b3b3
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document also hosts a large number of links to other PDFs, suggesting a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, but the presence of a malicious redirector indicates a likely attempt to deliver a secondary payload or phish the user.

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=all+those+endearing+young+charms+euphonium+pdf In PDF document text
    • http://pomuk.drogmi.org/uploads/1/3/2/8/132814930/bekumes.pdfIn PDF document text
    • http://files.gravelroadhome.com/uploads/1/3/1/4/131438329/masanolirifizovoku.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/1/0431/9199/2480/files/62970817310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/1_in_binary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9870/files/50944258295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5032/0543/files/wogiwabemojukiruruzojuzul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3846/6467/files/wegaxedojarijitiwopufizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/zamakevibedufumosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0433/8074/files/14037933634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8144/0168/files/25961414318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6259/9585/files/zolunofug.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 4

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_off000064f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F1 5660 bytes
SHA-256: fcf503126b70d519f2b690c6fa692fc2659c5170cdb7c4629a704a70c7085c2f
font_01_sfnt_off00007809.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7809 10112 bytes
SHA-256: 3c2d7247f93b7e40d4ff57900b08e5eaca314edd0c7e3fd9a53039ab88f7f53c

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