Malicious PDF — malware analysis report

Static analysis result for SHA-256 89f16732715f8dfc…

MALICIOUS

PDF

42.1 KB Created: 2020-10-02 09:25:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-30
MD5: 471054e3a44b318f00c1afad76f83774 SHA-1: 22f4abbd081e40744a37ad09dc65b6f3adb8381b SHA-256: 89f16732715f8dfcdb9971321c773e257196a7dfff2dadebbc1eebbb859deddc
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://cctraff.ru/strik?keyword=cantaloupe+island+pdf+alto+sax In PDF document text
    • https://site-1037163.mozfiles.com/files/1037163/52067197756.pdfIn PDF document text
    • https://site-1036695.mozfiles.com/files/1036695/92776181138.pdfIn PDF document text
    • https://site-1041859.mozfiles.com/files/1041859/lemovubudupudo.pdfIn PDF document text
    • https://site-1036799.mozfiles.com/files/1036799/fubifukupezedag.pdfIn PDF document text
    • https://site-1039275.mozfiles.com/files/1039275/7771496222.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000059f0.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000059f0.bin)
    • https://cdn.shopify.com/s/files/1/0433/3748/2405/files/heian_nidan_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5826/5238/files/muxiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/6153/7687/files/kokelobaluxexonosew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1b94023-53a6-4489-af42-2cbcf68dc827/gokivifubezubujumu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1229d0e1-acee-40e4-a04c-932f06dcd4a9/57018534713.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_off000059f0.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59F0 4912 bytes
SHA-256: e2235a35afb628e6cc48cf3526a5ed80cccd2de2103e5c7d25402f178737e7d7
font_01_sfnt_off00006abf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ABF 15284 bytes
SHA-256: bf9ab8543bfc46536d2e88773b272dc24570afd88dcc5c7bd3752b9c55177ae7