Malicious PDF — malware analysis report

Static analysis result for SHA-256 48ae3674b2d3bc0f…

MALICIOUS

PDF

67.7 KB Created: 2021-03-01 14:14:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5d118fda0e7f55e65eb15f1d33e91bbc SHA-1: 67eb01b06c437b9ff4d2bb21390def74a7c6dada SHA-256: 48ae3674b2d3bc0f9a527a9f430404fb6fb371cda0c909d32f937051feff7237
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://lozipotod.ru/wix?keyword=standardized+test+prep+answers+health PDF link annotation
    • http://zimezobot.getenjoyment.net/tifewa.pdfIn PDF document text
    • http://wivevadevenumet.mywebcommunity.org/rival_20_qt_roaster_oven_instructions.pdfIn PDF document text
    • https://tumuzisokume.weebly.com/uploads/1/3/5/3/135351536/2081874.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402949/normal_5ffd356a5d4b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410018/normal_600bec51571f3.pdfIn PDF document text
    • http://pexawegowe.mywebcommunity.org/11981125180.pdfIn PDF document text
    • http://fakazutilozok.iblogger.org/powerex_mh-c9000_high_error.pdfIn PDF document text
    • https://satisetuxa.weebly.com/uploads/1/3/0/8/130813646/lugijopunog.pdfIn PDF document text
    • https://fitulepam.weebly.com/uploads/1/3/0/8/130874207/kimuxajofobobomunum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416512/normal_6022703006e88.pdfIn PDF document text
    • https://cdn.sqhk.co/belesobikezi/idgzMbu/seguvevupeput.pdfIn PDF document text
    • https://didowivukosu.weebly.com/uploads/1/3/4/4/134470318/2572268.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/95853559031.pdfIn PDF document text
    • http://nolerepegumadoz.epizy.com/calendar_2020_singapore.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/13906739398.pdfIn PDF document text
    • http://kitakel.epizy.com/idsa_guidelines_uti_pediatrics.pdfIn PDF document text
    • http://tefosotolubexob.rf.gd/lesixitupedunediwelom.pdfIn PDF document text
    • https://s3.amazonaws.com/zunewidimem/97751000867.pdfIn PDF document text
    • https://s3.amazonaws.com/xeroguru/wutujujatinovavapu.pdfIn PDF document text
    • https://s3.amazonaws.com/budovewesekaz/zejeb.pdfIn PDF document text
    • http://zisukuvi.atwebpages.com/82148412215.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_off0000cdb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDB5 5292 bytes
SHA-256: fd1b02ac2790726773784a16ff5e2788e807ca5584bde3dcd06d4bfa97d718d8
font_01_sfnt_off0000dfc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFC0 9888 bytes
SHA-256: 60b30dd98145855e44d776d7e14f695dfa3b8c188d7217a04d1027f3becd61e3

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