Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aa5139fe8a69dd6…

MALICIOUS

PDF

74.7 KB Created: 2021-02-13 23:06:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 91820f066b61e0cc05b3d672a055ae39 SHA-1: 3136fee049035f8e50846f6299354eeeb0caf76a SHA-256: 6aa5139fe8a69dd635ff6d8aa3e8aa9dcbc3c5c7b3577e0f6f9a0bddbb59da66
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/aws?utm_term=picsart+12.+9+3+premium+apk In PDF document text
    • http://viluzuvegozawug.22web.org/photo_ki_file_kaise_banaye.pdfIn PDF document text
    • http://ingmijn.com/xesejigamagajojku81.pdfIn PDF document text
    • http://sellforce.ru/82086315046lvc9z.pdfIn PDF document text
    • https://cdn.sqhk.co/gusiloxi/iLyhjif/walmart_inventory_management.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423452/normal_5fff96341625e.pdfIn PDF document text
    • http://budijam.iblogger.org/gigabyte_z390_aorus_pro_bios.pdfIn PDF document text
    • https://cdn.sqhk.co/lutuganoda/dXVrifr/ravasadoliwovilogovizaba.pdfIn PDF document text
    • http://babysampler.com/fifeketojx4r1f.pdfIn PDF document text
    • https://cdn.sqhk.co/vimanagadu/YWO5L1s/jewamupeludajesurifexop.pdfIn PDF document text
    • https://cdn.sqhk.co/tuzijaxab/cjhehgV/cartoon_network_artist_name.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/vosimalume/44831064565.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/red_lace_formal_dresses_australia.pdfIn PDF document text
    • http://votasaze.rf.gd/zenavexuxadijodave.pdfIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/pijurinenixizedewiwub.pdfIn PDF document text
    • http://siwodonodefofo.epizy.com/chemical_carcinogenesis_research_information_system.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_off0000da27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA27 5648 bytes
SHA-256: 424aef043572359dedd8916a2be3c724e5da89deeecb4ab21e11adc34e2404df
font_01_sfnt_off0000ed52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED52 15292 bytes
SHA-256: 9af972cf4cb33c394d7a95f72fc1bd97369eec81834c16e23e6cdffd7c23eb14