Malicious PDF — malware analysis report

Static analysis result for SHA-256 164e053e4b129b71…

MALICIOUS

PDF

75.1 KB Created: 2021-02-25 07:24:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 13564e67529bfae3defcb892936c5ebe SHA-1: 44190010ae8bff0da0f8ff27e53c1cd212304040 SHA-256: 164e053e4b129b7105c0ce4279b72739d1edb15f63ef5205b9a0bfd77f0486be
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://seumenha.ru/123?utm_term=jason+capital+recommended+books PDF link annotation
    • https://cdn.sqhk.co/wudawagirus/Bujbfwt/cosmo_and_wanda_crown_template.pdfIn PDF document text
    • http://warixedivukinat.mygamesonline.org/insinkerator_garbage_disposal_stopper.pdfIn PDF document text
    • https://cdn.sqhk.co/jidevumedure/hdVFBjf/agile_project_management_methodology.pdfIn PDF document text
    • https://cdn.sqhk.co/gabazumad/haDvifR/mine_engineer_degree_online.pdfIn PDF document text
    • http://vozujuluxe.iblogger.org/58259771471.pdfIn PDF document text
    • https://cdn.sqhk.co/guwuweri/tEWhage/thunder_fighter_superhero_strikers_shoot_em_up.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393790/normal_5fdd1c904a433.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475720/normal_602366d9780b3.pdfIn PDF document text
    • http://tomolijoponix.mypressonline.com/chapter_26_cold_war_conflicts_test_form_a_answers.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tutopuwozel.epizy.com/setefenofo.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/what_is_measure_in_music_tagalog.pdfIn PDF document text
    • http://pamapubosozule.epizy.com/gift_certificates_templates_libreoffice.pdfIn PDF document text
    • https://s3.amazonaws.com/jowutoneranemuk/rugasem.pdfIn PDF document text
    • http://vejebuta.rf.gd/descriptive_writing_sample_answer.pdfIn PDF document text
    • http://kowotasube.epizy.com/rinaludagaf.pdfIn PDF document text
    • http://namepafubi.atwebpages.com/the_logical_song_mindless_self_indulgence.pdfIn PDF document text
    • http://wikiwujekuloxok.rf.gd/osho_chakra_sound_meditation_music.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/lotro_loremaster_guide_2018.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_off0000e85a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE85A 5412 bytes
SHA-256: a82fc515452b289dc8392d99a40b3d3ed70545138156be28977cb07fc5f77bf5
font_01_sfnt_off0000faa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA7 10796 bytes
SHA-256: f0f16c20643004c8bedb8c8d252a5a1add1abad4e841f8e1c98a768b6762c9cf