Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ba166b0b30a8aaa…

MALICIOUS

PDF

35.6 KB Created: 2020-08-13 19:30:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e8895e230c07d6d140f0b3d503f1debb SHA-1: 1d2f2bfab4c49032a345ef0e09283c60b959621e SHA-256: 5ba166b0b30a8aaae9fa0ad5605786b39d2f02f815bfb35f865066ba23b5e9da
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service identified as malicious. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/wb?keyword=pdf%20sociologie%20rurale', which is flagged as a malicious redirector. This suggests the PDF is part of a phishing campaign, likely using a 'free download' lure to direct users to malicious sites.

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=pdf%20sociologie%20rurale In PDF document text
    • http://nuwobix.tristatefit.com/uploads/1/3/0/9/130969744/naboromul_vewojawut_rutijijowuzefa_girov.pdfIn PDF document text
    • http://files.preciousmomentslivebymichelle.com/uploads/1/3/0/7/130776324/tagediwifoxumamataro.pdfIn PDF document text
    • http://files.danieleheon.com/uploads/1/3/1/6/131637190/kariwize_jefigi_xonevo_gijipoze.pdfIn PDF document text
    • http://files.katiebland.com/uploads/1/3/1/8/131856065/9334111.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/1/0431/3550/0439/files/bujimuxekepovisiduberupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8098/1403/files/git_all_commands.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3387/8940/files/nigagujoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1610/1798/files/dabosukiwawemulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3269/9302/files/53822256083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7141/5196/files/sonic_world_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3987/4462/files/difference_between_film_coated_and_enteric_coated_tablets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6753/1673/files/rolorikaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8995/9843/files/non_verbal_reasoning_practice_questions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8402/9854/files/14623780877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4666/6389/files/nigovadewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1839/4523/files/87651780803.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
🗂 Part of campaign: danieleheon.com 6 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A25 5192 bytes
SHA-256: a5cedb22d2dbf89dd1afb8fd25aa47ca8767c2f217bff02eb470be02ec234b23
font_01_sfnt_off00005bd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD5 11144 bytes
SHA-256: c3a992fea653ea788a37873c686572fa151177be4e1919658b0bdd0e9d278a96