Malicious PDF — malware analysis report

Static analysis result for SHA-256 32910393c31fff46…

MALICIOUS

PDF

70.3 KB Created: 2021-02-27 21:58:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3d0a3213821626015bbd99ac0e3062d1 SHA-1: c721eb4166e1665d1d3f4d5b4f7c781001d2ec25 SHA-256: 32910393c31fff46ca6e8ea97862425b679b58ffbef329f369e6eda4e7dc4f81
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://kuzutuzo.ru/wix?keyword=the+quadratic+formula+worksheet+coloring+activity PDF link annotation
    • http://sujabupinoda.scienceontheweb.net/read_autobiography_of_a_yogi_online.pdfIn PDF document text
    • http://gedadekenoz.mywebcommunity.org/vobonojiregebabuk.pdfIn PDF document text
    • http://vikiduxa.mywebcommunity.org/pewes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493569/normal_602a22e55a73a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408594/normal_5ff51f6b6e4a4.pdfIn PDF document text
    • http://lenuvivureropi.scienceontheweb.net/par_quoi_peut_on_remplacer_la_feve_tonka.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453579/normal_5ff97d5c8e114.pdfIn PDF document text
    • http://lazirog.mywebcommunity.org/29039409615.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/xeruraxexi.pdfIn PDF document text
    • http://wejuzofibab.medianewsonline.com/loguduvetepixelororupi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444369/normal_5fef86f208076.pdfIn PDF document text
    • http://xulubapatoso.scienceontheweb.net/51297380903.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nosigegu.onlinewebshop.net/tovokerepes.pdfIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/saxejejuputiranazilatef.pdfIn PDF document text
    • https://s3.amazonaws.com/fekife/kohler_generator_parts_catalog.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/47711801154.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/phonics_worksheet_grade_1.pdfIn PDF document text
    • http://pabewuvuxaf.onlinewebshop.net/51489442330.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/structure_and_bonding_chemistry.pdfIn PDF document text
    • https://s3.amazonaws.com/jajuzasalikirut/saucony_men_s_guide_iso_2.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_off0000d35b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD35B 5828 bytes
SHA-256: fcbe0912e6cdef2c1e972fabd7f5f5b773b5d059bc73daf159b8c56574fa2d3d
font_01_sfnt_off0000e725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE725 10712 bytes
SHA-256: d918838ccef04794e15ff289fbbbec2da0298c08e504367e8d20f1b586bafee8