Malicious PDF — malware analysis report

Static analysis result for SHA-256 8244fa17f6d67bf3…

MALICIOUS

PDF

47.0 KB Created: 2020-08-06 05:43:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c9cf08e5df19fde39bd2ab5987f9bfbb SHA-1: b05b7c1732f99bdfb90a4095fdbdbbe3efa071e4 SHA-256: 8244fa17f6d67bf3f04c6123128447906733fa8a30ec90e46e0661f4e28e6972
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a primary link pointing to a known malicious redirector. This suggests the document is designed to redirect users to malicious infrastructure, likely for phishing or malware distribution. The presence of numerous other PDF links indicates a potential link farm or SEO manipulation tactic to obscure the malicious destination.

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.ru/pify?keyword=bring+up+the+bodies+pdf In PDF document text
    • http://files.travelling4kids.com/uploads/1/3/2/7/132740614/de980567acf79e9.pdfIn PDF document text
    • http://files.gertrudepress.org/uploads/1/3/0/7/130776489/e047b87.pdfIn PDF document text
    • http://files.northwoodsgourmetgirl.com/uploads/1/3/2/6/132682040/zosev.pdfIn PDF document text
    • http://files.lenasboutiqueofsweets.org/uploads/1/3/1/0/131070374/2825122.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/1/0441/4016/7320/files/17836854742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7272/4897/files/21561415095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9726/8128/files/94443646509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/55649285769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89377355024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93861148098.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9072/2472/files/21808480917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0985/8984/files/16119075447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5335/0055/files/sobuvulepubevoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4021/9034/files/zukelopobuzivixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/doxazewewijetusom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6238/6079/files/magic_training_guide_rs3.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 7

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_off00007967.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7967 5252 bytes
SHA-256: bc77c0d44e1c7eec9a62f08e1f9f1aa29f1d8d80ae64c224e90e7698980413ab
font_01_sfnt_off00008b3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3E 10632 bytes
SHA-256: 58715fc74681211434f77fa00847bf011bc96efe1fa66f2986dcad8163f0c338

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