Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d07850955419cd0…

MALICIOUS

PDF

70.7 KB Created: 2021-02-22 22:47:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e8fa23d7c2bac6468e72c16cb1e61360 SHA-1: bf6611cb4e35f628cc6c92bd3ed52e9ed2915009 SHA-256: 7d07850955419cd09e2e5a200610e2a8d452f09ff71433d1a3c4f1f7549c492e
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://seumenha.ru/wix?keyword=crazy+sock+day+activities PDF link annotation
    • http://patamekuzon.iblogger.org/tumamutezuwijonajiv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496826/normal_5fcabdb436b33.pdfIn PDF document text
    • https://cdn.sqhk.co/suxupijisajo/hxcQiiI/34344299554.pdfIn PDF document text
    • http://dupezivekiguje.22web.org/25446732831.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474739/normal_600e40d457ab7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494433/normal_5ff6d308d0c59.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388598/normal_602933ec4e2a6.pdfIn PDF document text
    • http://xuvaguwanolinu.66ghz.com/are_g_shock_watches_good_quality.pdfIn PDF document text
    • http://vuxokiwi.22web.org/81841636923.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/sitozi/all_american_slurp_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/fe_lesson_plan_template_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/xulikamul/fowegiwopifigafotune.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/medawepotinetozavan.pdfIn PDF document text
    • http://kozolamo.rf.gd/mintons_car_mart_listening_answers_section_2.pdfIn PDF document text
    • http://jefuxod.epizy.com/zapiwuf.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/vapew.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_off0000d0ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0EE 5084 bytes
SHA-256: 79ffba3359c8f37ac537c368f4c4755c5ece16c0f51853ee4bba7888f09bee08
font_01_sfnt_off0000e254.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE254 1792 bytes
SHA-256: 81309faf1025f1054cc112915a1fe76a7b7ef227bfbaf02f08cdd80473fe7a24
font_02_sfnt_off0000eb2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB2E 10112 bytes
SHA-256: 6a31b33400ad8563a0c07ad5b496ae06a249cc674655a27b3b71df6e666a4ea2

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