Malicious PDF — malware analysis report

Static analysis result for SHA-256 d075054bfa60ac4a…

MALICIOUS

PDF

65.8 KB Created: 2020-11-22 09:01:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-06
MD5: 9de9d750655025628a59b378797bb772 SHA-1: 4cdbe02a77ef1de27ab8b61b0c768aac551e4f6d SHA-256: d075054bfa60ac4a0752141b25220014bffe380317597a0dfde387239cf20ac4
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ruwusugotalub.weebly.com/uploads/1/3/4/6/134690364/a23a6dc21b2b4.pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4494893/normal_5fabfc3aadccd.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/repimeb.pdfIn PDF document text
    • https://s3.amazonaws.com/xafuluxel/aiman_khan_tv_shows.pdfIn PDF document text
    • https://s3.amazonaws.com/wepeliniru/kezelovulogugozoravuduzer.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/propensity_score_analysis_statistical_methods_and_applications.pdfIn PDF document text
    • https://pajodutakimileg.weebly.com/uploads/1/3/4/4/134474341/ec1ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_5fb25ee14c675.pdfIn PDF document text
    • https://nukafubesogu.weebly.com/uploads/1/3/4/4/134463640/2196237.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408479/normal_5f9c9aab55288.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413235/normal_5fb4b06159459.pdfIn PDF document text
    • https://cctraff.ru/123?utm_term=south+coast+auction+reviewsIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000c425.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000c425.bin)
    • https://uploads.strikinglycdn.com/files/c519fd5c-3daf-4367-b53c-d932eb47c686/towok.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 extracted file (font_00_sfnt_off0000c425.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c425.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC425 5108 bytes
SHA-256: 89733cf4f85e813685edae31a796f2bbb57e425d61f832f7c3c7f9a1fa42c9e0
font_01_sfnt_off0000d593.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD593 10908 bytes
SHA-256: 3e5863f9dd13773950dfeacecd6762a30507da40448830c20da1162c3f9a8de0