Malicious PDF — malware analysis report

Static analysis result for SHA-256 e677457ab8dc9403…

MALICIOUS

PDF

68.9 KB Created: 2021-02-15 03:29:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9fea4ab2e82ae737b3d87b06b76db65c SHA-1: 2842aa3abe0b731fd155b49750e757b0d5138429 SHA-256: e677457ab8dc94032eb0023fbd6a6085ea990fe6c2ab1ed6b1f1326488e906d1
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=6th+grade+summer+reading+packet PDF link annotation
    • https://cdn.sqhk.co/zovaratigu/yyjhjai/mixoxamafineli.pdfIn PDF document text
    • http://febirag.iblogger.org/mission_mangal_full_movie_hdrip_720p.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446491/normal_601eca163b5ce.pdfIn PDF document text
    • https://cdn.sqhk.co/fumamimed/dhcjieS/entity_a_horror_escape.pdfIn PDF document text
    • https://cdn.sqhk.co/jigugabopu/jarjbhj/99355156466.pdfIn PDF document text
    • https://cdn.sqhk.co/fodexuxefeba/hdgfjjq/brilliant_distinctions_vs_alle.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428043/normal_5fcf6cdf7e398.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/p2bCgib/pigeon_craft_game.pdfIn PDF document text
    • http://ramosek.iblogger.org/10_inch_android_tablet_argos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374976/normal_5ffc0ca7b67f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502464/normal_5ff1e793284a0.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/dowavelaxam/44356871477.pdfIn PDF document text
    • http://lakutinegodoted.epizy.com/downstream_investment_reporting_rbi.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_off0000d11e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD11E 5580 bytes
SHA-256: 274296e6e0c8c82fc74146486130cd7d7dcf1cee5009b8573c74995052bcd0c0
font_01_sfnt_off0000e3ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3EA 10208 bytes
SHA-256: 6525c99dd7cb9477863d5c89deb33bc3254f36266f9d347213b8f5e1c9924bf0