Malicious PDF — malware analysis report

Static analysis result for SHA-256 c026cfdf392d15e2…

MALICIOUS

PDF

46.2 KB Created: 2020-11-08 15:23:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 497a224e65018b5c413a6c615fd3416c SHA-1: bffb8b24871e4773a71192231c7bb37c170c2503 SHA-256: c026cfdf392d15e206e88ce0547079ae1a22132871164575effa7803c55481da
76 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is a common tactic for phishing or distributing malicious content. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of the external URI is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffnew.ru/123?keyword=2011+scion+tc+descendant+turbo+kit PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367632/normal_5f8a56843aace.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367680/normal_5f95da9fa58de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371508/normal_5f9b6ecfe4c10.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382958/normal_5f95fcd79d33f.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://vipidagus.files.wordpress.com/2020/11/pitazopezubedajudepapaji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/065eb460-ad92-4beb-afbe-e445b3a17540/gedivopefe.pdfIn PDF document text
    • https://ripigewub.files.wordpress.com/2020/11/32762827138.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ca9a110-3a53-403e-abd0-ac43bc124315/tuxawi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7bcaa26-7dc3-4a23-b057-987813628d3b/words_start_with_ph.pdfIn PDF document text
    • https://xokasozalufa.files.wordpress.com/2020/11/94659566564.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/wheelock_s_latin_7th_edition_free.pdfIn PDF document text
    • https://juvibix.files.wordpress.com/2020/11/wazasusegupaxusijip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a90ad2f-f4ee-4d62-b01c-bf655c3b6175/eva_mendes_nude_pics.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_off000065ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65EA 5220 bytes
SHA-256: 87d3793b868588a9b065e1d3cfd0e6b2ea62b7631d0cf5cec9c010b2e4d8d0d7
font_01_sfnt_off000077a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A3 11216 bytes
SHA-256: fa6cc5defcce3edf7832458de223ad6396ddbc98410b133dfb5b71aaf7ae2b41
font_02_sfnt_off00009ddc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DDC 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34