Malicious PDF — malware analysis report

Static analysis result for SHA-256 226aab94d3156c7d…

MALICIOUS

PDF

72.2 KB Created: 2021-02-11 18:45:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: afc98428209b303a3c0fb427d5c41172 SHA-1: c10d3523aeb21bbc17fd64997b72d25b99f459f0 SHA-256: 226aab94d3156c7dad9a604110497c98fca17f8a34d3b1e0418d2d0d20aa4a7e
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://druttle.ru/wix?keyword=gleam+mobile+car+wash PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4390330/normal_60009f050ce59.pdfIn PDF document text
    • http://lesantyqas.online/nolek1312g.pdfIn PDF document text
    • http://flowerport.market/alkaline_ash_forming_foods7qn83.pdfIn PDF document text
    • https://cdn.sqhk.co/pumibavi/jgggkje/neboxetafuged.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491151/normal_5fcee37f81399.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414680/normal_600fda750a1e4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489615/normal_60015fcf9c1c2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454668/normal_5fff022bc9400.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://s3.amazonaws.com/gurupixabogivaz/83609580843.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/quadratic_inequalities_worksheet_with_answers.pdfIn PDF document text
    • http://tununik.epizy.com/azur_lane_alabama_gear_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vesubodufisi/designing_a_template_in_word_2010.pdfIn PDF document text
    • https://s3.amazonaws.com/dazawojob/more_apple_watch_faces.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_off0000d350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD350 4904 bytes
SHA-256: 60c335c9c9b7482c40b0aa955e5e0f566b8c96b5ff7077629695e161f147f3ac
font_01_sfnt_off0000e406.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE406 9852 bytes
SHA-256: da4dfa9f8543d42a1d7632685350a9b228a5a4c8a765fbc75ab1a2cf87f01d34
font_02_sfnt_off000105d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105D0 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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