Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2881e87b2ddc61d…

MALICIOUS

PDF

71.7 KB Created: 2021-03-01 12:29:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b7a1e0eb691dc52d6ef08542da36a400 SHA-1: f5cbcbbc0b031d1994487e7d9b2ec82fd0e2a9fb SHA-256: e2881e87b2ddc61de100e041c4b92cc0cc84b358b9031f40c1051247c3ec02e2
126 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
  • 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.
  • 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://zajinet.ru/wb?keyword=zebra%20gk420d%20feed%20button%20not%20working PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489981/normal_602f4d40a4c21.pdfIn PDF document text
    • http://vclean-sale.shop/oblique_aerial_photographyubdna.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448096/normal_6032276ac966f.pdfIn PDF document text
    • http://tovelksa.website/bagudijonizivoeeeoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487631/normal_600c9f3d2729c.pdfIn PDF document text
    • https://cdn.sqhk.co/jevamivuvugi/jfiegf8/kolafobopusefoxetixikiteb.pdfIn PDF document text
    • https://cdn.sqhk.co/fudamewojaf/cLkoHgf/34909267325.pdfIn PDF document text
    • http://ig-support-service.com/git_commands_to_push_code_first_time3bzyq.pdfIn PDF document text
    • http://momenujobig.22web.org/civilization_and_its_discontents_quotes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427093/normal_600b76eeda09a.pdfIn PDF document text
    • http://bioforcecolumbia.site/coin_counter_locations_walmartcdnab.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/wajufifenoxuj/bhojpuri_bhajan_kirtan.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/36817069664.pdfIn PDF document text
    • https://s3.amazonaws.com/poresi/computer_science_a_level_project_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/pekatikisuruki/jaseximisaluj.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_off0000d9fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9FE 5480 bytes
SHA-256: 0c8210dac2de148ff7af88fb46d5aa4d09c8ebabb50ce231972928e304048a5a
font_01_sfnt_off0000ecd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECD7 10880 bytes
SHA-256: 889e80a5c594e1268f5feeab71aba934e3d097e0b7d2610e0a88eec10c22bf33