Malicious PDF — malware analysis report

Static analysis result for SHA-256 864e4d0b57daf4d6…

MALICIOUS

PDF

38.8 KB Created: 2020-08-07 13:30:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 065ce09b78c8eecf5a499cbc498a3cc0 SHA-1: 0ed5dea6cc04d71e4506efb89531292bedeacc38 SHA-256: 864e4d0b57daf4d68f92880a16d705cb0763fd4d9a9d74ee73f5c1f7fb7f9ee5
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to a redirector service (ttraff.cc) that appears to be part of a link farm for SEO-optimized PDF downloads. This suggests a phishing or scam attempt to drive traffic to potentially malicious or unwanted content. The ML classifier strongly indicated maliciousness, and the presence of redirector links reinforces this assessment.

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=carte+du+monde+vierge+pdf+gratuit In PDF document text
    • http://files.learnlikeapirate.com/uploads/1/3/1/0/131069819/vudiburon_zuramofonitidof.pdfIn PDF document text
    • http://files.the-circle.ca/uploads/1/3/1/0/131070722/5a87eb377df2894.pdfIn PDF document text
    • http://dejowego.getfocuscounseling.com/uploads/1/3/1/4/131407089/5654889.pdfIn PDF document text
    • http://files.meadowcroftnorth.com/uploads/1/3/1/1/131163969/loriwupa_texaderowu_kajaxapefomifi.pdfIn PDF document text
    • http://files.whitegallowaysofwayby.com/uploads/1/3/0/8/130873907/fewubogukobavel-sixomolimu-mifip.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/1/0433/9544/8997/files/33837458315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2806/2109/files/vujimi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/92835403356.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3860/5461/files/exploring_management_5th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2556/2775/files/65083866261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/14326168111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0513/1421/files/97976650782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5326/1724/files/ancient_egypt_map_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6181/4172/files/cause_and_effect_matrix_for_fire_alarm_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4595/1400/files/html_to_android_library.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6395/7914/files/36453261834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6754/7546/files/11859261132.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_off00004b66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B66 5116 bytes
SHA-256: 0224fba4c6da3aec16cf743c135e395c87d83af863e66a08a3ce958706ee1666
font_01_sfnt_off00005cc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CC6 10380 bytes
SHA-256: 0b491fb1ed24e0e818592f55305e5658e0df4704bf6a18f0840425ddb21074a8
font_02_sfnt_off00007e4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E4E 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333