Malicious PDF — malware analysis report

Static analysis result for SHA-256 567d807626b79f7e…

MALICIOUS

PDF

69.7 KB Created: 2021-02-22 06:05:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 43832a9a893aa9bf548f7a074d663661 SHA-1: 6effd8d5271b830f5a5ec1b6102c430fa796c418 SHA-256: 567d807626b79f7ef987a1169382f5f34c56d4493b3566126af00fb05023fbf4
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://yafferge.ru/123?utm_term=rowenta+dr70+x-cel+steamer+reviews In PDF document text
    • http://takavejesutep.iblogger.org/nenobepizawowexamujera.pdfIn PDF document text
    • http://peferiselavumi.iblogger.org/xepafox.pdfIn PDF document text
    • http://fapseo.ru/319514725726ixzl.pdfIn PDF document text
    • http://autolombardpro.ru/tixamanejofugozubijenedaf22g3b.pdfIn PDF document text
    • http://dommasters.site/bayonetta_smash_bros_guideww1cy.pdfIn PDF document text
    • http://soguged.22web.org/63576824237.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365998/normal_5fcca8715b340.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wabalegawamiraj.rf.gd/73349764128.pdfIn PDF document text
    • https://s3.amazonaws.com/papuja/19399576543.pdfIn PDF document text
    • http://pefogitoveni.epizy.com/excel_consolidate_text_data_from_multiple_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/freakonomics_chapter_4_answers.pdfIn PDF document text
    • http://pisumapopub.rf.gd/jason_stephenson_beginners_guided_meditation.pdfIn PDF document text
    • http://lusunumef.rf.gd/how_do_you_read_a_chainsaw_chain_size.pdfIn PDF document text
    • http://noporotosodapo.epizy.com/behringer_xenyx_1002_usb_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/25528847039.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_off0000d172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD172 5564 bytes
SHA-256: c0b348d94c0c1bcdb47246fa608639d93c87a773f30a2224d7102833403a71e5
font_01_sfnt_off0000e475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE475 11048 bytes
SHA-256: d659910d5eb4025d337f973f8916ca5ed68f774297627943186b04d5a0a62a2e