Malicious PDF — malware analysis report

Static analysis result for SHA-256 0757a0bfa5a15191…

MALICIOUS

PDF

72.1 KB Created: 2021-03-03 10:21:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 30697afd2487ccc7cab29f72446c2bee SHA-1: 9792f26c9fb8406debeab634a847c8382c4c1a5c SHA-256: 0757a0bfa5a15191aa07b9733b50166c589ebf99f40adb8312f602eec24cef1d
126 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
  • 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://baarspo.ru/wix?keyword=hannibal+barca+book+pdf PDF link annotation
    • http://galosidijixiwu.mypressonline.com/2_salicylic_acid_cleanser_fragrance_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365570/normal_5fceabd97d355.pdfIn PDF document text
    • http://susurrus.space/befopakuxabafebekivawiwazlf1r.pdfIn PDF document text
    • http://creamwalls.online/fewewuwowepufisidokubuvowkpie.pdfIn PDF document text
    • http://bebarupeludif.22web.org/ask._fm_apk_free.pdfIn PDF document text
    • http://veselutut.mywebcommunity.org/what_size_filter_for_bryant_furnace.pdfIn PDF document text
    • http://vivubowi.getenjoyment.net/51261302.pdfIn PDF document text
    • http://gemubanabugawa.mypressonline.com/trig_function_graphs_calculator.pdfIn PDF document text
    • http://apparently-home.com/mufumepgimg.pdfIn PDF document text
    • http://aicberg.net/what_does_pre_production_mean_in_filmvgr9a.pdfIn PDF document text
    • http://zevibeponakat.getenjoyment.net/30622726887.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zuburojirep.epizy.com/solved_problems_on_multistage_amplifiers.pdfIn PDF document text
    • http://gigubal.rf.gd/magedexufitexej.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/introduo_do_texto_dissertativo_argumentativo.pdfIn PDF document text
    • http://javasuk.epizy.com/walmart_logo_vector.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/recommendation_letter_example_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_off0000de3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE3D 5136 bytes
SHA-256: 24ae5004c8d434c6290ea856ab96fdc8a4840ecbd76beac47f28dc9bf1858bdc
font_01_sfnt_off0000efbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFBE 10884 bytes
SHA-256: 8e651aa18e53b78eb9862e561a7fdfd081578c0dfe82edb1ac13db97b1fcc5a5