Malicious PDF — malware analysis report

Static analysis result for SHA-256 6782d51ab957bbcf…

MALICIOUS

PDF

69.4 KB Created: 2021-02-12 08:42:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ea84f2e278cb3ccd660533dfc429cc13 SHA-1: 12d7ae60c8402d43e166c58cc17123a722853d5f SHA-256: 6782d51ab957bbcfe9ada167b7650197b298909067eae41f3f06a7890f484cf8
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://seumenha.ru/wix?keyword=avalon+arbor+wood+stove+manual PDF link annotation
    • http://verification-help.com/unicorn_invitation_template_blank7lelc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457849/normal_5ff7628a461b8.pdfIn PDF document text
    • https://cdn.sqhk.co/kezulegol/Jjgjbls/votusuxoneninolovejed.pdfIn PDF document text
    • http://cg-designer.xyz/mojebefijepukelalesizilfn5hj.pdfIn PDF document text
    • http://sdek-24.cc/fitukavikonixejuvukawiw1xlyq.pdfIn PDF document text
    • http://wusejopajaxus.22web.org/58929537311.pdfIn PDF document text
    • http://bet-info.ru/the_managerial_function_of_controlling_is_defined_asdfwpq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454562/normal_60145d2ac098a.pdfIn PDF document text
    • http://kilagine.22web.org/audio_do_whatsapp.pdfIn PDF document text
    • http://wei-nmvc.com/i_survived_chicago_fire31u9q.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/kavalukato/6862091887.pdfIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/cloud_atlas_sextet_piano_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/bitokajakef.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/autobiographical_essay_outline_template.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_off0000d3d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3D1 5252 bytes
SHA-256: 8c3a917b0edcdf048ba035dd145b6081913be78859bce910280dc591f930c200
font_01_sfnt_off0000e5ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5AB 10260 bytes
SHA-256: aafea795c68b301d2ba0ebb330da28fc381598feb2da52edf15d2c4a65435e86