Malicious PDF — malware analysis report

Static analysis result for SHA-256 762a1f6f84b9269d…

MALICIOUS

PDF

70.1 KB Created: 2021-02-25 11:03:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5bc0885baf58feef845ce4ce7d3d5944 SHA-1: da5132c661c8277f7ecf7e66d2352b7a5ad94c26 SHA-256: 762a1f6f84b9269d7a4bb18636988e184b3529379ef66cd7e88e6e4f38d4357b
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://bologen.ru/award?keyword=romeo+and+juliet+act+2+scene+1+worksheet+answers PDF link annotation
    • https://polovetanofup.weebly.com/uploads/1/3/5/3/135330247/moxumukamolepu.pdfIn PDF document text
    • https://juzudibat.weebly.com/uploads/1/3/4/3/134328144/biwemuvejer.pdfIn PDF document text
    • https://giridoxaxe.weebly.com/uploads/1/3/4/7/134703098/mepibetujekebe_lerapaf_tenopigipevijo_buzigewagi.pdfIn PDF document text
    • https://fusufuxono.weebly.com/uploads/1/3/1/6/131606103/wemobo_pogisozafe_ponakomu_dexukudesub.pdfIn PDF document text
    • http://instapriz.site/48616786998k1jxb.pdfIn PDF document text
    • http://golivexi.22web.org/49565272003.pdfIn PDF document text
    • http://tufofol.medianewsonline.com/how_to_get_bigger_legs_with_bodyweight.pdfIn PDF document text
    • http://jojidasusesot.sportsontheweb.net/probability_tree_diagram_worksheet_easy.pdfIn PDF document text
    • http://susobokilodos.iblogger.org/kunasazukekisanabuf.pdfIn PDF document text
    • http://fruitik.space/408220345954b0y.pdfIn PDF document text
    • https://nidedijuba.weebly.com/uploads/1/3/0/8/130814831/fakuxibuta.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kofaxafogi.myartsonline.com/willy_wonka_and_the_chocolate_factory_1971_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/80008937134.pdfIn PDF document text
    • http://batefagut.epizy.com/kijotodafadativifip.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/51177561614.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/how_to_use_pastel_pencil.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/math_book_answers_for_9th_grade.pdfIn PDF document text
    • http://gizegojaza.rf.gd/99319613524.pdfIn PDF document text
    • http://tuwutexo.onlinewebshop.net/can_i_mix_perlite_with_cement.pdfIn PDF document text
    • https://s3.amazonaws.com/gofiguj/oscar_et_la_dame_rose_film_streaming_complet.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_off0000d5b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5B4 5600 bytes
SHA-256: 59f0baa284d3830b6c1e8ddc53e13999421afbc6b589d9c387001c00779a1e00
font_01_sfnt_off0000e8af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8AF 10016 bytes
SHA-256: 5d49a7308dc03cf3f9385f32c0d23d70b62c7f5c95aa195d9fd31b5493a10a13

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