Malicious PDF — malware analysis report

Static analysis result for SHA-256 e17f0cdcda063273…

MALICIOUS

PDF

69.5 KB Created: 2021-03-01 09:03:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 7fd38f3b3b3c0a6b6ccc0815b882fb8d SHA-1: 6333ab5af20aa56e9b73f34bb4bd4627e37d5b76 SHA-256: e17f0cdcda063273dafca668bb29a992b26789ebc8afbf844b0c60829db0f9aa
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://resalured.ru/wix?keyword=refraction+of+light+worksheet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4426690/normal_60330444e77bc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486975/normal_5ffd6f05b140f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484380/normal_5fd5f15da2175.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486565/normal_5fca17f0eba34.pdfIn PDF document text
    • http://fosavaxenu.mypressonline.com/macbeth_act_3_comprehension_questions_and_answers.pdfIn PDF document text
    • http://raifaisentapp.online/muperavesatuxopodi9x8ho.pdfIn PDF document text
    • http://nopotaz.medianewsonline.com/41739730995.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/jobavo/argo_tamil_dubbed_movie_free.pdfIn PDF document text
    • http://sipanokule.onlinewebshop.net/60526139725.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/bajirao_mastani_movie_songs_bestwap.pdfIn PDF document text
    • https://s3.amazonaws.com/tidigudetefumof/balak_palak_marathi_movie_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/gijokiwuxedovuvona.pdfIn PDF document text
    • https://s3.amazonaws.com/niporofez/we_grow_accustomed_to_the_dark_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/xifabilejilab/sasukoneletobotepoteboba.pdfIn PDF document text
    • https://s3.amazonaws.com/zakunafu/keto_diet_plan_menu.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/63203104765.pdfIn PDF document text
    • http://fuvarijes.atwebpages.com/how_do_i_put_my_maytag_washer_in_diagnostic_mode.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_off0000d23a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD23A 5308 bytes
SHA-256: a22e21aed955d2f0e921d9a4eeea86e7686b3653e20215d5c3164fa5327a9f05
font_01_sfnt_off0000e459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE459 10872 bytes
SHA-256: 1debacd33b9fda71963c1ad0562992f6ca23bcfaf6c4d66a1708b0cb0e5b4cab