Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ed969d4949f73ff…

MALICIOUS

PDF

73.1 KB Created: 2021-02-16 18:05:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: bfe690d25a06e8f0964038bd583522a4 SHA-1: c1abfc6f17d2db1cfd56bdb8d5dc791d16236c76 SHA-256: 3ed969d4949f73ffd78b88bf55d849406f14edab230a322c6862f430a44e115e
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/strik?utm_term=how+to+troubleshoot+camper+ac+unit In PDF document text
    • http://pearhaidhr.fun/beyond_the_clouds_movie_songs_free96ev2.pdfIn PDF document text
    • https://cdn.sqhk.co/nuxoporerom/dgcEhfs/38119037509.pdfIn PDF document text
    • https://cdn.sqhk.co/mavozopofug/gjidjb5/majors_offered_at_merchant_marine_academy.pdfIn PDF document text
    • http://carbags.site/68510729407igqzt.pdfIn PDF document text
    • http://omshop.space/96537256390tzzsy.pdfIn PDF document text
    • https://cdn.sqhk.co/pejemomet/jpKQJhh/76759609420.pdfIn PDF document text
    • http://antonioita.fun/jupupawematatafodagejibav28f3e.pdfIn PDF document text
    • http://jobware.pro/pomokagugaw1ss.pdfIn PDF document text
    • http://xafupatudiki.22web.org/71321590731.pdfIn PDF document text
    • http://nususolajegak.iblogger.org/refunakagegab.pdfIn PDF document text
    • https://cdn.sqhk.co/lesasafo/sge9gcF/outlier_synonym_adjective.pdfIn PDF document text
    • http://ewop.space/kitesisetibokowemarufuluu.pdfIn PDF document text
    • http://youla-24.cc/2018_bmw_x4_m40i_performancew5pxj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://petilawunabebi.epizy.com/riwunavufajanunub.pdfIn PDF document text
    • http://kotopogo.rf.gd/msi_970a-_g46_bios_update.pdfIn PDF document text
    • http://kekunulu.epizy.com/uk_practical_driving_test_marking_sheet.pdfIn PDF document text
    • http://memajale.epizy.com/convertir_de_pulgadas_a_cms.pdfIn PDF document text
    • http://tigapoxo.rf.gd/julusanaxajilepigapewu.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_off0000e2b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2B7 5368 bytes
SHA-256: 935bfa80c9daaafb3693fd13b666820e15f8d753ebee4d1176e89b41902be406
font_01_sfnt_off0000f4d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D3 10196 bytes
SHA-256: 27736557572b659e00349595c0896482444832ae69ec5ae600b957b5943bfd3b