Malicious PDF — malware analysis report

Static analysis result for SHA-256 46cc0869d26e92a6…

MALICIOUS

PDF

68.6 KB Created: 2020-11-14 08:54:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: ac92338951e8dafa49230d316eddf46b SHA-1: e4d7ba2091b442d8b31712e77e8bc1fe4bdc6f28 SHA-256: 46cc0869d26e92a62377741f656c157896406fe43270f768f401b3bf0869bd47
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of phishing. It contains a link to a known malicious redirector, 'https://cctraff.ru/123?utm_term=pork+belly+air+fryer+cooking+time', which is likely used to deliver a secondary payload or lead to a phishing page. The document body, though heavily obfuscated, suggests a lure related to cooking times, indicating a social engineering attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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/123?utm_term=pork+belly+air+fryer+cooking+time In PDF document text
    • https://cdn-cms.f-static.net/uploads/4369763/normal_5f88c83ce7d4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382962/normal_5fa75e4545575.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366949/normal_5f92d646bb0c7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3f5347e-be92-45e0-b706-7ab758624f38/7631999038.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/79482302133.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a208cb6e-1a9b-4332-b65a-ba7082de9c53/o_monoplio_mentiroso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7b14fa5-4f61-4693-b1f4-889a58356c72/53214246707.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccfb3dae-cde2-449b-8429-0e927e6709b7/22164173717.pdfIn PDF document text
    • https://s3.amazonaws.com/fizup/71853479097.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6012ce73-92f3-4317-ac82-d20f3e64c2b8/xazivepeporewavuwaripadaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d467f79-bd06-421a-bff9-fa3febb8d64c/greys_anatomy_case.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8ceed27-3e22-48c6-b0cb-eb3e27dc3af9/chapter_12_biology_dna_and_rna_test_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2c17c62-1bc0-496e-8745-737acf23b634/91890806762.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d025.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD025 5332 bytes
SHA-256: 32383736af45ef253ae3fa3f91aadc90797d3e54b69f73a3356e5af02c007815
font_01_sfnt_off0000e249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE249 10736 bytes
SHA-256: 49e1d847b8cbaa92dea231981c49da8cf18780697958b46d2f3b40419ed1aa86

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