Malicious PDF — malware analysis report

Static analysis result for SHA-256 5701ad86b464bcb6…

MALICIOUS

PDF

74.1 KB Created: 2021-03-06 23:58:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: f32996ccdf35ef707253a007e1e5c5da SHA-1: 3f3572a3bbd7ae04c969ef804feaaff0b4ea5dd5 SHA-256: 5701ad86b464bcb6d619a574412b710c86aa5e9bb529c8d79506f4a5408d60af
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/award?keyword=romantic+book+quotes+for+her PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4496592/normal_60215000d4dd1.pdfIn PDF document text
    • http://tesar-krd.ru/armitron_45_7012_alarminw64.pdfIn PDF document text
    • https://cdn.sqhk.co/rogevuzazi/gigkmhi/57859899215.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471946/normal_5fd9a6e43a33d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485568/normal_601ce865ecd03.pdfIn PDF document text
    • http://jarizodej.22web.org/science_8_diffusion_and_osmosis_worksheet.pdfIn PDF document text
    • https://cdn.sqhk.co/jotenitix/hbNMjih/75276359225.pdfIn PDF document text
    • http://profapp.pro/33687273586v495v.pdfIn PDF document text
    • http://mxbur.fun/which_p90x_workout_is_the_hardestlzc1n.pdfIn PDF document text
    • https://cdn.sqhk.co/mujexoxa/dyji5hb/murder_hornet_texas.pdfIn PDF document text
    • https://motadonikedubi.weebly.com/uploads/1/3/1/8/131856170/2f0d78e5118b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458148/normal_6013c7baa10d2.pdfIn PDF document text
    • https://zokesafan.weebly.com/uploads/1/3/0/7/130775675/nojelube.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zemadepa.rf.gd/certificate_of_conformity_template_australia.pdfIn PDF document text
    • http://radodazemiluk.epizy.com/backuptrans_android_iphone_viber_transfer.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_off0000e609.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE609 5428 bytes
SHA-256: ea03527ab87a0eec56a08ae6d3ce52b5f1d4d55d308b53c02bee548f9dcdd601
font_01_sfnt_off0000f85a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF85A 10372 bytes
SHA-256: 611b86941ffdf4a8877c5e753c3d4fc648d3eb73a529e6b022e05014e8a2c93b