Malicious PDF — malware analysis report

Static analysis result for SHA-256 35b2c0f1756b2ebd…

MALICIOUS

PDF

72.8 KB Created: 2021-03-01 03:01:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 40ae275b189ecdfff6ff045a9b851bc2 SHA-1: 7f8a7cc26701ab68f4ca2028b19d8af9dedeedf8 SHA-256: 35b2c0f1756b2ebdf291ac1fda6f529c5539a82ad0cb1fc25a712b4a62fe9bab
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://jacksth.ru/wix?keyword=how+tinder+works+in+india PDF link annotation
    • https://cdn.sqhk.co/mifopanikil/G4iaVH6/vefonodijupimimisovu.pdfIn PDF document text
    • https://cdn.sqhk.co/zoluxoni/GihTUgd/hit_knock_down_hack.pdfIn PDF document text
    • http://pestore.pro/how_to_program_genie_excelerator_garage_door_openergsq02.pdfIn PDF document text
    • http://toolsbestpricemicrometer.site/zusotixovasubilaqixp2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465402/normal_6026b11b0a3e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453553/normal_5fd31130d25e9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377908/normal_6004a4b4b5ae8.pdfIn PDF document text
    • https://cdn.sqhk.co/darojopul/qgGxjf6/zuvesudefusixejokaziminar.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/pevuwarobuvowa/kugizegew.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/18204210734.pdfIn PDF document text
    • https://s3.amazonaws.com/muvarelo/rizezotowesew.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/gymnopedies_1_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/wotumezak.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/reformed_evangelical_church_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/durable_power_of_attorney_financial.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/57853464018.pdfIn PDF document text
    • https://s3.amazonaws.com/lososimap/22052020454.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_off0000e253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE253 4904 bytes
SHA-256: 4480797392528a2c638ec7a1667d4dff7cea08898bca74b6ac2aff395256c36a
font_01_sfnt_off0000f31c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF31C 10252 bytes
SHA-256: 1776f9b68741d07eef5b897a46752fef957c3f7a4bfd5562a8bd7bd3d3e16346