Malicious PDF — malware analysis report

Static analysis result for SHA-256 8032c2c84e533c34…

MALICIOUS

PDF

69.7 KB Created: 2021-01-29 12:02:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a321e10fc7c2c67408ffdc445d5591f2 SHA-1: bdf2ba2c50a6f6eb4db09a41472f7bab85c696c5 SHA-256: 8032c2c84e533c34e1d5706f68e56c8891bf408e9ba6471bbb9f58b8ce448963
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jacksth.ru/aws?utm_term=c.+elegans+tarantula+care+sheet PDF link annotation
    • https://cdn.sqhk.co/ripigopes/mgOjbhb/16914524559.pdfIn PDF document text
    • https://cdn.sqhk.co/waxigapo/bMgfaRx/kewepejubaxasukad.pdfIn PDF document text
    • http://natlab.ru/pigaxafg5b.pdfIn PDF document text
    • https://cdn.sqhk.co/retobumoki/Uy5wghK/75184170243.pdfIn PDF document text
    • https://cdn.sqhk.co/zimuteraf/hibZjev/43826093425.pdfIn PDF document text
    • http://metalllift.ru/28268905872ujlew.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wuxipuretox.rf.gd/mystery_dungeon_explorers_of_sky_quiz_guide.pdfIn PDF document text
    • http://fopagozijudiri.epizy.com/47159937441.pdfIn PDF document text
    • http://nadiripu.epizy.com/mugefaradux.pdfIn PDF document text
    • http://juzujodajemafa.rf.gd/bul_bul_kannada_movie_all_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/sozedugifobogevawapew.pdfIn PDF document text
    • http://pasigajixivete.epizy.com/bauchi_polytechnic_hnd_form.pdfIn PDF document text
    • http://lagarudu.epizy.com/angular8_template_free.pdfIn PDF document text
    • http://sulumasofip.epizy.com/mixed_sine_and_cosine_rule_worksheet.pdfIn PDF document text
    • http://puligop.epizy.com/dabisofasugogagewiguxokot.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_off0000d543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD543 4996 bytes
SHA-256: 7bc5c4cb4926c316b377f74452a88b10d805bd9aa9fde5f271778458cb9717ce
font_01_sfnt_off0000e642.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE642 10588 bytes
SHA-256: 43d3af3f5e168ce997da3d94321360c9367c6d2794e526256c3ea4359b10f6a4