Malicious PDF — malware analysis report

Static analysis result for SHA-256 26dd7d785b503f6e…

MALICIOUS

PDF

70.5 KB Created: 2021-02-21 22:52:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2579d5ba0279e81e4dc39a82c6e1d240 SHA-1: 8c46e5dc72ad831bd41e574113f74d1b59644cc5 SHA-256: 26dd7d785b503f6e2dc7ae4b641088feced9a5f024f21e848ec46014000d10f4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jacksth.ru/wix?keyword=independent+events+worksheet+1+answers+mathworksheetsland PDF link annotation
    • https://fagutefoxod.weebly.com/uploads/1/3/4/2/134235025/zazef_jobux_wogaraxizotimi_kosan.pdfIn PDF document text
    • https://cdn.sqhk.co/sunidoxil/hgcgVtv/absorption_and_reflection_of_light_in_photosynthesis.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486206/normal_5fc9314aadd0c.pdfIn PDF document text
    • https://pomonomiwubexi.weebly.com/uploads/1/3/2/3/132302815/5633875.pdfIn PDF document text
    • http://betixisu.22web.org/sarya_narasimha_reddy_movie.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448328/normal_6013146717e18.pdfIn PDF document text
    • https://botimosiwipam.weebly.com/uploads/1/3/1/3/131398053/5e316d1693c6e.pdfIn PDF document text
    • https://gifuliranofave.weebly.com/uploads/1/3/0/8/130873810/miposonixezepidone.pdfIn PDF document text
    • https://dexazime.weebly.com/uploads/1/3/1/4/131437554/netorivuvawixejana.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391605/normal_5feb6ba12cfd1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450034/normal_6000a05e0a290.pdfIn PDF document text
    • https://kewisivi.weebly.com/uploads/1/3/2/6/132681156/8172921.pdfIn PDF document text
    • https://nifirasevaxo.weebly.com/uploads/1/3/4/7/134756957/wevirek-bilubudeje-wixudeba.pdfIn PDF document text
    • https://nuvafuriwevejuf.weebly.com/uploads/1/3/2/8/132814848/9204bf1e6e537a.pdfIn PDF document text
    • https://wumigativagulam.weebly.com/uploads/1/3/1/6/131637174/3117836.pdfIn PDF document text
    • https://lozatovetifeg.weebly.com/uploads/1/3/3/9/133999134/9030d96.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vevosewis.rf.gd/jewesujatuzivufoveraw.pdfIn PDF document text
    • http://kenamumiv.rf.gd/farberware_pressure_cooker_guide.pdfIn PDF document text
    • http://wuxojawe.epizy.com/gezamovifemefeme.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_off0000d77e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD77E 5404 bytes
SHA-256: a59a41a49fa00ef6a111d228e6981db3553c28fbd8ed5668f6015e3cf79c0fb3
font_01_sfnt_off0000e9cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9CF 10148 bytes
SHA-256: 239e066cb6beac49dce9994056fa6cd6b7cce3167c23ac60cb063e08ebf9f2a4

Open this report in the interactive analyzer, or submit your own file for analysis.