Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d06fc21cb63cad5…

MALICIOUS

PDF

67.6 KB Created: 2021-01-20 11:40:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: efbcae779c316a03c8476619661e2cc1 SHA-1: 5dccb2e1efcc7ed052f5b81ed17a59e03ba96e0c SHA-256: 7d06fc21cb63cad5d10b0125ac27da5dd41968a30b180de83624730bf670d975
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/aws?utm_term=curso+de+viol%25C3%25A3o+avan%25C3%25A7ado+pdf+gratis PDF link annotation
    • https://gazewowotom.weebly.com/uploads/1/3/4/6/134616189/d9064e97.pdfIn PDF document text
    • http://moxokivotalunuz.iblogger.org/yokogawa_centum_vp_software.pdfIn PDF document text
    • https://cdn.sqhk.co/goworonol/ihigh01/91107266603.pdfIn PDF document text
    • https://cdn.sqhk.co/kagalitisup/oRkkhdq/44103224572.pdfIn PDF document text
    • https://site-1168055.mozfiles.com/files/1168055/59947051600.pdfIn PDF document text
    • https://kadonomu.weebly.com/uploads/1/3/1/4/131454950/8091873.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489259/normal_5fe8adf2241f2.pdfIn PDF document text
    • https://cdn.sqhk.co/tejurorado/jozgfjc/ball_switch_3d_jumping_ball_cube_ball_game.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477156/normal_5fa8d350761c6.pdfIn PDF document text
    • https://pedasivu.weebly.com/uploads/1/3/5/3/135387907/limovumutun-remuwevosed-nanejiwuvo-betusameguzi.pdfIn PDF document text
    • http://zakofuta.66ghz.com/29476128674.pdfIn PDF document text
    • https://ditoleruv.weebly.com/uploads/1/3/5/3/135345680/865af9b7520a8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://memaded.epizy.com/gebokasi.pdfIn PDF document text
    • http://nuxumejaxumem.epizy.com/outlook_for_mac_2016_email_templates.pdfIn PDF document text
    • http://julajibumomas.rf.gd/krakow_tourist_guide.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_off0000c6bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6BB 5676 bytes
SHA-256: bf4f023aecf7f1d554b98ff8a83b278ff103f67139d81924623ff523c0aa0022
font_01_sfnt_off0000d98a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD98A 12336 bytes
SHA-256: 840aeb29e47b1216e2eb5e063ca0eb8b22bb70aba359f2217c22e7841aecbb07