Malicious PDF — malware analysis report

Static analysis result for SHA-256 afe7b937a8aec75d…

MALICIOUS

PDF

67.5 KB Created: 2020-12-09 11:37:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7696414c8e6ee38013a38f655ace8438 SHA-1: 942ce0f60983193b79060c9314fbec3a99408c86 SHA-256: afe7b937a8aec75d222864d49ff6df0c01d0f26551bfbb5f81d068ded44a9046
136 Risk Score

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
  • 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://trafffi.ru/aws?utm_term=free+printable+royal+wedding+bunting+template PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4487927/normal_5fc221b78b83d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480397/normal_5fbcf4c783e66.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0eaf5c89e1c4b8fbe7403/t/5fc5d201145a8629dc7b39a5/1606799878527/53101191787.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b2077a4-c4a9-4b6b-8994-72e8e1a5f202/48082751360.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/24a40062-ff22-45d4-bce5-a34289bfdfeb/spanish_2_4a_test_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ebd09955c744b53ba8af/t/5fc16e80173fb5383bd8a2d8/1606512257133/53575249450.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f960f38f-40bf-441b-9057-80c5bab6e600/gajufiwetafusisorew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aadfa2a8-0f96-4d7d-be46-64c80ad3d87b/haworth_enhanced_premise_installation_guide.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc54ceba13a450bab11859f/t/5fc657977acac6192a9a75d6/1606834071733/recette_sandwich_thon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a224c83-08b7-452f-bf1c-6fc72ce5a288/weathertech_side_window_deflectors_install.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd161247f0db06af82d5fd/1606227474634/1498267639.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b03914a-fa74-4121-a0ec-2e4ed1bf4afd/manual_instrucciones_fagor.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc66c8a8ef7301f8b36d770/t/5fcbc1b8bce7087d1ae57d30/1607188920696/carnivores_dinosaur_hunter_hd_hack.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc373c8df132613bbcde1a1/t/5fc868b5f97c193540ef3b70/1606969526248/54634652243.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf627461e25426e1308ac6/1606378101503/movurududiso.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_off0000caaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAAF 5392 bytes
SHA-256: 47c70ee5e335b821884c44647fccaae298b2ef02c91f967cf69312956b324f1d
font_01_sfnt_off0000dd07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD07 10684 bytes
SHA-256: e3e542353549291bf992c2fecd5a926700fce5aa6f51ba81daffbc5fd0584618

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