Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c62d8b14a203cf1…

MALICIOUS

PDF

70.6 KB Created: 2021-03-08 21:14:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d8ff93737e2b6399e0287d5842a0d948 SHA-1: f3aae47bf8c243b80fd7653e1674e69e8bc6b443 SHA-256: 9c62d8b14a203cf1c9553d9eabf9d4b584893719ec399e12d823ee571b049d54
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/award?keyword=wastewater+treatment+process+modeling+pdf PDF link annotation
    • http://faketikus.22web.org/vorabewiwuxomoduxaxe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381766/normal_603b5ad220c47.pdfIn PDF document text
    • http://prostosite.site/134227783137cgii.pdfIn PDF document text
    • http://mizafaroremida.getenjoyment.net/starboard_value_presentation.pdfIn PDF document text
    • http://munupesifak.22web.org/comment_package_latex.pdfIn PDF document text
    • http://forovasax.medianewsonline.com/how_to_reset_cobra_car_alarm.pdfIn PDF document text
    • http://kadesevi.iblogger.org/pulapuzuxomadojel.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477138/normal_5fee8d91eee0e.pdfIn PDF document text
    • http://viniveba.mywebcommunity.org/50741548051.pdfIn PDF document text
    • http://dibosezufo.getenjoyment.net/web_services_automation_testing_tools.pdfIn PDF document text
    • http://specrazreshenie.com/underhanded_tactics_ck2mrtgx.pdfIn PDF document text
    • http://sendgrid-de.com/erupciones_acneiformes_por_metforminar25ou.pdfIn PDF document text
    • http://hangookoil.ru/7405379895caghy.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://guzumirofega.epizy.com/bengali_style_english_font_free.pdfIn PDF document text
    • http://xirexadugimog.atwebpages.com/jidufuvagatoporobuligo.pdfIn PDF document text
    • http://nojumajemipi.rf.gd/xigitarufedebixaniki.pdfIn PDF document text
    • http://watijosanowo.epizy.com/35236286517.pdfIn PDF document text
    • http://xiniwipilanaju.atwebpages.com/14027527297.pdfIn PDF document text
    • http://pekamidakoj.atwebpages.com/zodafaxixopu.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_off0000d793.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD793 5580 bytes
SHA-256: e13410acfb43c2f61d44bf3b78e52e9d12dce189f1a450bf7e925f329ec487b8
font_01_sfnt_off0000ea92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA92 10136 bytes
SHA-256: 745626f0ab6b23bd78560adb25773f3cdf5dae3feaeb3a66d015a6dc478ab91e