Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7e66a0cdc4329ec…

MALICIOUS

PDF

76.8 KB Created: 2021-01-25 08:24:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 55bc7476e7e2954bb57b2343ee697517 SHA-1: 24f65c2bb4c03d8449c0aee7ba0eea2799900009 SHA-256: d7e66a0cdc4329ec48cfbe7ffde3c7813a312833a66d2af6c8030f60b7b35f13
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://leonvi.ru/wb?keyword=shelter%20vs%20zombies%202%20online PDF link annotation
    • http://fridgeservice.ru/bilefitajozawi1woex.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483097/normal_5fe7dc04c575b.pdfIn PDF document text
    • http://nojosomefoviw.66ghz.com/self_adhesive_waterproof_membrane_sheeting.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481272/normal_5ff446cf2f824.pdfIn PDF document text
    • http://peskomment.ru/idle_defense_lf_free_shipping_codeepzfk.pdfIn PDF document text
    • https://cdn.sqhk.co/zowipitilo/xyXhgjj/famous_american_football_players_names.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379236/normal_5fff06594f726.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420767/normal_5fc7b2da78610.pdfIn PDF document text
    • https://cdn.sqhk.co/kupibetefuko/LQJhd4l/bowekomulunekel.pdfIn PDF document text
    • http://my-favshop.online/36919210836j5bx7.pdfIn PDF document text
    • http://katagonubazi.22web.org/kugumuruzupazagomaxop.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mapulikilep.epizy.com/joined_matrix_report_salesforce.pdfIn PDF document text
    • https://s3.amazonaws.com/kukazowox/doom_ost_bfg_division.pdfIn PDF document text
    • http://zekarevuwo.epizy.com/lubazisobajumeza.pdfIn PDF document text
    • http://rezumasalimod.epizy.com/consumer_buying_behavior_theory.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_off0000ef60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF60 5200 bytes
SHA-256: 666edd1786dff39696d3d9145c6679016a14f4b7c02c8ec391e578bff0a2cf8c
font_01_sfnt_off000100f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100F3 11108 bytes
SHA-256: 9ef3d3ebc304ea23ee89e279b9efa6df8d76338da36c96328fc9b339e341841b