Malicious PDF — malware analysis report

Static analysis result for SHA-256 15269866f35850ee…

MALICIOUS

PDF

71.5 KB Created: 2021-02-22 12:36:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e8b35b244f2451064071c85858aaa80c SHA-1: ce3c175b6a5db421a172f50c59363206868f45c0 SHA-256: 15269866f35850ee129098e2d81908f7ba7c9088560acb392757a6a733d9fdcd
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/wix?keyword=kumon+reading+worksheets+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4458145/normal_602658f8da5f3.pdfIn PDF document text
    • http://varnisvakq.ru/careless_whisper_sheet_music_for_trumpetvwxdh.pdfIn PDF document text
    • http://waduresiwiboba.iblogger.org/tejavuderetokode.pdfIn PDF document text
    • https://cdn.sqhk.co/gobisofokox/igMxigV/drop_the_ball_in_soccer_meaning.pdfIn PDF document text
    • http://fikepoj.22web.org/22746549781.pdfIn PDF document text
    • http://umkatrade.ru/cross_stitch_patterns_free_download_ann_logankgouu.pdfIn PDF document text
    • http://salonhq.xyz/lejawifavebipilolajolabaf04rjh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495841/normal_5fd61bfa2bd6e.pdfIn PDF document text
    • http://55571.ru/tisosuzuxagifitiw0jyg1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420238/normal_5fee43080009a.pdfIn PDF document text
    • https://cdn.sqhk.co/wowixepis/0giWjcT/duvilewasifon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/30267868514.pdfIn PDF document text
    • http://zewilamijalu.rf.gd/think_and_grow_rich_amazon_ebook.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/xuvunezudet.pdfIn PDF document text
    • http://pamubaj.epizy.com/44685810051.pdfIn PDF document text
    • http://wilazetifoka.epizy.com/vector_map_of_the_world_with_country_names.pdfIn PDF document text
    • https://s3.amazonaws.com/biwubeleba/rifobuvofupenafu.pdfIn PDF document text
    • http://nijopupeboxisa.epizy.com/conductance_in_chemistry.pdfIn PDF document text
    • http://wokofidikud.epizy.com/gidinobajabamurivagavuze.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/57229071369.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_off0000dc11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC11 5548 bytes
SHA-256: 669a99ef249bf9734b3acf74667d0dec8e1feee9d61c407737365c4b10e284df
font_01_sfnt_off0000eedc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEDC 9992 bytes
SHA-256: 31d36306ffbabda5e72ba749ce6f0b28b0dd47cc8f7d21df2ac5cf9ee732ef66