Malicious PDF — malware analysis report

Static analysis result for SHA-256 d92f5c11b4d00383…

MALICIOUS

PDF

71.1 KB Created: 2021-03-06 22:46:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 254b7ab4bc69230497280909261a2faf SHA-1: c9f92868c3e55afd6aebb1ab260def02152166eb SHA-256: d92f5c11b4d00383bdfe0eb5ef3e67d6bf3e87e1291fcec513193aa91b37a97d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://mezovuduw.ru/wix?keyword=proform+390+e PDF link annotation
    • https://tatogupuragafa.weebly.com/uploads/1/3/4/0/134096405/181677.pdfIn PDF document text
    • https://mivebomuponi.weebly.com/uploads/1/3/1/3/131398008/fapufakugawit.pdfIn PDF document text
    • https://bibomezu.weebly.com/uploads/1/3/2/7/132710601/8353470.pdfIn PDF document text
    • https://kemipopebu.weebly.com/uploads/1/3/4/5/134585234/7168747.pdfIn PDF document text
    • https://mafizawejibon.weebly.com/uploads/1/3/1/3/131383772/tepovivizipa-bisatovuti.pdfIn PDF document text
    • https://lideteli.weebly.com/uploads/1/3/0/7/130775407/8196637.pdfIn PDF document text
    • http://janorewaxeno.mygamesonline.org/agile_methodology_scrum_definition.pdfIn PDF document text
    • http://businessmentality.com/715318842462q6yu.pdfIn PDF document text
    • http://yourdesk.website/13187436619liytp.pdfIn PDF document text
    • http://teaitalis.space/desh_bhakti_gana_dj_songo54zp.pdfIn PDF document text
    • http://kowojolajamuv.getenjoyment.net/how_to_write_something_as_a_product_of_prime_factors.pdfIn PDF document text
    • http://healthytrands.com/asia_spinal_assessment0wbk9.pdfIn PDF document text
    • http://ninuxalezopo.getenjoyment.net/lasko_42_tower_fan_home_depot.pdfIn PDF document text
    • http://100p-f.ru/gamerot1tbub.pdfIn PDF document text
    • http://okstore.info/environmental_problems_presentation0upkt.pdfIn PDF document text
    • http://medgaj.com/practice_proportions_in_triangles_worksheet_answers0ofdj.pdfIn PDF document text
    • http://rasudilikid.mywebcommunity.org/kifarupesatanad.pdfIn PDF document text
    • https://likunemotiro.weebly.com/uploads/1/3/5/2/135299998/renoguwonufejudojeja.pdfIn PDF document text
    • http://tewatag.medianewsonline.com/what_is_a_3_phase_isolation_transformer.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://palelezugob.onlinewebshop.net/maven_java_brains_tutorial.pdfIn PDF document text
    • http://nabulegewuwal.myartsonline.com/pepedefujotakup.pdfIn PDF document text
    • http://xojudemavu.onlinewebshop.net/what_would_cause_the_transmission_not_to_engage.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_off0000d977.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD977 4956 bytes
SHA-256: bc0cad36f38a738d92f3ed1dad5223558ba22fe5c66265a88f2c595b9fa5de4a
font_01_sfnt_off0000ea44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA44 11036 bytes
SHA-256: 6a1eb76c64791df1ec4dee86eacce15dad8b8ccac6f046c3d90788b961789a66