Malicious PDF — malware analysis report

Static analysis result for SHA-256 761e6f58659b8c3e…

MALICIOUS

PDF

48.3 KB Created: 2020-08-21 14:54:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b84bf07a45744533ac696bbaf203447f SHA-1: cc2c584b840a51f4d4e7ecc856d832af1a533b20 SHA-256: 761e6f58659b8c3e31381432d2837fa1ab7d7b3d5ce9523777132e855db3d3ce
194 Risk Score

Malware Insights

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

This PDF document functions as a lure, employing a link farm of SEO-optimized PDF links to entice users to download content. The primary redirector URL, https://ttraff.cc/pify?keyword=cisco+aci+vmware+design+guide, is flagged as malicious, indicating a high probability of malicious intent. The document's structure and the presence of numerous links suggest an attempt to distribute further malicious content or engage in phishing activities.

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=cisco+aci+vmware+design+guide In PDF document text
    • http://files.musings-rants.com/uploads/1/3/2/7/132712080/saragadamag.pdfIn PDF document text
    • http://files.sacredhearttutorial.com/uploads/1/3/0/8/130873851/fapibixuril.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/1/0431/7347/8560/files/apache_tomcat_8._5_for_windows.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2478/5313/files/rowute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8362/0757/files/psychological_case_study_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8258/0130/files/38586806629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2230/9786/files/cladogram_analysis_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/0781/2257/files/darobawub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/5856/6044/files/apache_spark_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5713/5257/files/81744711661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2553/8973/files/33871529905.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006aa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA1 5284 bytes
SHA-256: 5939db477c508cce9c8d4cb6de5460615ab77fb3e105d688da7df2651ccd5bd6
font_01_sfnt_off00007c95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C95 10004 bytes
SHA-256: 29d2ed14361e788393fc9115822a4eddf7b435f2d03a578b9153ef7921e0297f
font_02_sfnt_off00009f13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F13 16204 bytes
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd