Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce4cf9421d2ca235…

MALICIOUS

PDF

71.9 KB Created: 2020-08-19 03:55:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ee8a7fa2c6859f540daf4095c91903a SHA-1: 7aea242cc76d551d22825fafe66d899590e46ce2 SHA-256: ce4cf9421d2ca235f30a8057c1f49942fed73a0fdc28249f40cb9f13b7f071e9
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 of which point to external PDF files hosted on Shopify. One of the primary links redirects to a malicious URL, ttraff.cc, which is likely used for phishing or malware distribution. The document body, though heavily obfuscated, contains the text 'Bovine spongiform encephalopathy definition' and the malicious URL, suggesting a lure to trick users into clicking the link.

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=bovine+spongiform+encephalopathy+definition In PDF document text
    • http://files.paytonpropertyservicesllc.com/uploads/1/3/1/6/131637498/2080142.pdfIn PDF document text
    • http://files.legalandcommercial.com/uploads/1/3/0/7/130739379/4529278.pdfIn PDF document text
    • http://moluso.karolinafreino.com/uploads/1/3/1/3/131379444/d0e56b4229ca19e.pdfIn PDF document text
    • http://rubeduve.thezhanggroup.com/uploads/1/3/0/7/130776445/61f17.pdfIn PDF document text
    • http://files.c4csports.org/uploads/1/3/1/0/131070313/2611455.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/1/0435/7128/2079/files/bebikaworitexurobanus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9954/6010/files/42751664203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6056/0025/files/kawebalepuvivatuvedodiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3834/2311/files/pazalazofifemal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8589/3542/files/99219956268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4029/8392/files/98288053908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/92187310863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9820/1502/files/32002168637.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/fishing_report_grande_ronde_river.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/5190231589.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 5

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_off0000dab4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAB4 5780 bytes
SHA-256: 4be2956119d4a0edbdc95cd96d9cda54b8bac32de94e7098c956258d0b8b6678
font_01_sfnt_off0000ee43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE43 10460 bytes
SHA-256: d91eebda65cd64afb532a4bad7187ca018b6efee9e706e773f6a37ed7db4e791

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