Malicious PDF — malware analysis report

Static analysis result for SHA-256 5da05264da27f692…

MALICIOUS

PDF

47.5 KB Created: 2020-08-18 23:49:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7536d704f61ccd9de24d243ff856c2b3 SHA-1: 0a9bed37dc181310d860583b019af96139f884fc SHA-256: 5da05264da27f692f36a51e609a7cdcffa607ec366dd592fc6839a01af5961c0
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, suggesting a link farm or phishing lure. The document body, though partially corrupted, contains text related to a 'Wef global competitiveness report 2013' and a URL that matches the redirector found in heuristics. This indicates an attempt to trick users into clicking malicious links, likely for credential harvesting or malware distribution.

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=wef+global+competitiveness+report+2013 In PDF document text
    • http://gepavu.yvonnesthemeparties.com/uploads/1/3/0/7/130776428/2298695.pdfIn PDF document text
    • http://files.hi5taxis.com/uploads/1/3/1/0/131070011/1574136.pdfIn PDF document text
    • http://kilazus.arisenutrition.com/uploads/1/3/1/3/131384260/6309583.pdfIn PDF document text
    • http://files.cmcpressurewashers.com/uploads/1/3/1/3/131382406/tutomipaxizebuwej.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/1/0433/5190/0310/files/servicenow_certification_dumps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6939/0500/files/33494073836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0525/4566/files/comparative_adverbs_worksheet_3rd_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4386/4224/files/71871824448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3605/5454/files/default_css_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/61238086127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0976/9631/files/list_of_archetypes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5570/2425/files/30539985085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9623/5415/files/puvagetevupefipukagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3450/8454/files/jetipavolanosojali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tinoled.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77AD 6036 bytes
SHA-256: 149caa51d22b0356352a5133d18bd0acdb59d48e2a25caae1fa3e62c95903c25
font_01_sfnt_off00008c47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C47 10788 bytes
SHA-256: 513b307c9c3d28b43cef77efe03f377b7ad6742c397e35dde5f78faaeaceb78c