Malicious PDF — malware analysis report

Static analysis result for SHA-256 45ebfa7332ece7ae…

MALICIOUS

PDF

45.0 KB Created: 2020-08-17 11:01:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92bc25af46f4faa9b0514d48dd749210 SHA-1: d79c3126d255ed8202b8ceb7ced893335e4631ff SHA-256: 45ebfa7332ece7ae9ecd86900fd3ff4e69a4a4e7c561f355a0cf09722db283f1
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a PDF download. The presence of numerous external links, many pointing to Shopify domains, suggests a link farm designed to obscure the ultimate malicious destination. The primary malicious IOC is the redirector URL.

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=ate%25C5%259Ften+g%25C3%25B6mlek+%25C3%25B6zet+pdf+indir In PDF document text
    • http://files.loco-loko.com/uploads/1/3/1/4/131453847/fukejimuw.pdfIn PDF document text
    • http://suziralov.thairicespoon.com/uploads/1/3/1/6/131606490/zalexivet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9673/3864/files/zudanowuzuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8624/2201/files/badifobazetel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/sitivuzaginofika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7208/5406/files/14228248340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4207/7852/files/87694100777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4509/3533/files/4367687039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6845/6086/files/32722823560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8038/3653/files/79928256997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5376/9123/files/41525914525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32878299647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2534/9283/files/fumifikagozopebufukox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0763/0747/files/diagramme_de_bode_second_ordre.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8611/7032/files/senior_sales_manager_job_description.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61C3 5140 bytes
SHA-256: 37c6a87eb4863978fb34b837246dcb5bfdcdf666d33d5cbe00b9b5c681a137dd
font_01_sfnt_off0000732a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x732A 12172 bytes
SHA-256: d1888e1ca1a3b9c378a1abfa27d2129537c44f3e9f1716c81ec7a6955e27e467
font_02_sfnt_off0000976e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x976E 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333