Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f5df2859b206a65…

MALICIOUS

PDF

71.7 KB Created: 2021-02-26 04:04:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 148f5c279d21c6f0ad1541c6fc4ee455 SHA-1: f76f76faa897927cd41d6e73fdff5ff4e7df730c SHA-256: 8f5df2859b206a65ab22aa051d3fbd59cabc8e151f7fec4e594a35b7005095cd
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://maypoin.ru/aws?utm_term=lux+win100+manual PDF link annotation
    • http://tuimag.ru/47926123509g0d26.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472776/normal_5ff656c1bfeab.pdfIn PDF document text
    • http://manthoughtswebsite.website/tivo_series_2_lifetime_subscriptionknclx.pdfIn PDF document text
    • http://idclick.cash/octopus_teacher_animecc9mb.pdfIn PDF document text
    • http://zoomita.space/fnaf_world_download_free_iosuxhvv.pdfIn PDF document text
    • http://islandlandscapesbb.com/adeste_fideles_piano9z2je.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477369/normal_60331db6d3d48.pdfIn PDF document text
    • https://cdn.sqhk.co/duravukikemo/ie4giha/16012653191.pdfIn PDF document text
    • https://cdn.sqhk.co/bitanalagep/hfUjgyc/waterfowl_hunting_dog_names.pdfIn PDF document text
    • http://lnstagramverifiedbadgeservice.com/dufezibanalutugozoluxaq8cz2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412908/normal_5fcace2ab3a06.pdfIn PDF document text
    • https://cdn.sqhk.co/maxegugej/U5Vighc/english_grammar_lessons_free_language_video_lectures.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409627/normal_5fd341175e190.pdfIn PDF document text
    • http://cheapkeys.site/637065651107bntz.pdfIn PDF document text
    • http://yazansoft.com/ximuzifabiwonabidunufasc8ua0.pdfIn PDF document text
    • https://cdn.sqhk.co/definuseju/hfR5qhb/madalin_stunt_car_2_run_3.pdfIn PDF document text
    • http://mists.space/the_practice_of_statistics_in_the_life_sciences_3rd_editiony5x8m.pdfIn PDF document text
    • http://otshelnik.net/33405183353f2iua.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dcd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD9 4852 bytes
SHA-256: 3477171b28b0dddcd48588594bc71d3ab4e7123d3f9f339c5faeb63376b08973
font_01_sfnt_off0000ed65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED65 10748 bytes
SHA-256: 2395ae17927c4b214fbddff7db1430e2da27d0bae6a86e78911b94c5d554f10b