Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c94d5d2303813b2…

MALICIOUS

PDF

42.1 KB Created: 2020-08-13 08:24:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 96815b6b5ccba39e43a45d5beeea47e4 SHA-1: 26d3afd70462bfea9cfe17cf26447b62c857c7cb SHA-256: 4c94d5d2303813b24b0596e3ea81160a3f8966b46fbdc819b6415da71ed0d4f3
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.cc/wb?keyword=order%20numbers%20worksheet%20year%202'. The document body also contains this URL and numerous other links, many hosted on Shopify, suggesting a link farm or SEO poisoning attempt. The primary malicious URL is the most critical IOC, as it is likely the entry point for further malicious activity.

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=order%20numbers%20worksheet%20year%202 In PDF document text
    • http://files.empowerptandwellness.com/uploads/1/3/0/8/130874169/nuvin_bakobalowelex.pdfIn PDF document text
    • http://files.sidleystandup.com/uploads/1/3/2/6/132681295/1034485.pdfIn PDF document text
    • http://files.libyauprisingarchive.com/uploads/1/3/1/0/131070702/2710dc400ed0a.pdfIn PDF document text
    • http://files.cyrphotography.com/uploads/1/3/1/4/131454766/nosupanim.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/1/0433/0687/7080/files/83971047952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0058/5636/files/kileluvenatogonojima.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8530/7805/files/66126342028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4444/5082/files/proyecto_arquitectura_sustentable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0581/9550/files/terumul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5498/9466/files/is_sam_smith_married.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7985/1414/files/dikaxiwafejenatimupudur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sexewagufik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3382/9277/files/62255181205.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7346/0641/files/kozikopatojifon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5064/8223/files/85629238277.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_off00006643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6643 5588 bytes
SHA-256: 34eb8a5a3094cb60aabe24c2d7d40a19b0070a3416c3b4eeab8d8e694769c1ba
font_01_sfnt_off00007928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7928 10120 bytes
SHA-256: 34b361b22d727ddae1926d4985093dd2d43001665b7cf4dabc439e2a124bc87a

Open this report in the interactive analyzer, or submit your own file for analysis.