Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e00a3b38d992070…

MALICIOUS

PDF

72.0 KB Created: 2021-02-08 02:42:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 30856eee9d19362dec39e8758d55850c SHA-1: 4fae798d0b00c5d793e62355462451f5a53c90ae SHA-256: 0e00a3b38d992070d197684a869148b773109bdac425c8bae9a98e4c2b4ccb29
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/wb?keyword=maths%20worksheets%20ks1%20number%20bonds%20to%2010 In PDF document text
    • http://komujevakikumu.22web.org/mediaget_free_for_windows_10.pdfIn PDF document text
    • http://baffer-shop.space/balochistan_issue_and_its_solutionxjpk6.pdfIn PDF document text
    • http://remont-kvartir-otzyvy.moscow/horror_movies_imdb_list_2019ebkg6.pdfIn PDF document text
    • https://cdn.sqhk.co/bifoligi/cgdjcrs/tattoo_photo_editor_pro_2020_tattoo_my_photo.pdfIn PDF document text
    • http://site-shop.xyz/private_wifi_access_fiosxtbqe.pdfIn PDF document text
    • http://goloszauniver.fun/wedulefimomemabah2iy6.pdfIn PDF document text
    • http://sberbank.services/zaseftrnr9.pdfIn PDF document text
    • http://samo-katim.ru/admire_synonyms_informaleajfs.pdfIn PDF document text
    • http://geekcods.com/film_avatar_20107ztam.pdfIn PDF document text
    • http://miiliioner.xyz/naxufikerobapoforixjsnom.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jokoligu.rf.gd/apple_watch_facebook.pdfIn PDF document text
    • http://saziwujezad.epizy.com/foritumaw.pdfIn PDF document text
    • http://zusomiverufal.rf.gd/honkai_impact_3_arctic_kriegsmesser_guide.pdfIn PDF document text
    • http://rijogutigoxek.epizy.com/fuvuwanavif.pdfIn PDF document text
    • http://modedavap.epizy.com/aishwarya_kannada_film_songs_free.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_off0000dcb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB6 5528 bytes
SHA-256: a0c180e07eeb3793beebab969079a3680fbd9fc9d0c09ec59b8599e77ab1f842
font_01_sfnt_off0000ef71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF71 10604 bytes
SHA-256: ff25b9ba3fb663800d8e00ba01a30a40d46dd9d9de96f0307d3e3a9bf943ec11