Malicious PDF — malware analysis report

Static analysis result for SHA-256 67ca98fed10c50be…

MALICIOUS

PDF

67.7 KB Created: 2021-02-15 05:20:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9cc9a3f8e638282c13c47cbd5c87b04c SHA-1: d9c75ea58a3b8f838b514a548d7eb2cc2efd092f SHA-256: 67ca98fed10c50be2b05392c94bad907212e0379d64f977148e7d3ace9550dc3
184 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
  • 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/wix?keyword=the+nut+job+full+movie In PDF document text
    • https://cdn.sqhk.co/mapetidul/gaQDkn9/cute_avatar_maker_make_your_own_cute_avatar.pdfIn PDF document text
    • http://salonly.xyz/gagozukklycn.pdfIn PDF document text
    • http://carishr.com/katuveliviwijilurpywg.pdfIn PDF document text
    • https://cdn.sqhk.co/dixufeja/wgeRIjd/saxigakuwiwisesipumoxife.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459629/normal_600bbb887937d.pdfIn PDF document text
    • http://raicen.com/navbar_template_in_bootstrapt2km4.pdfIn PDF document text
    • https://jaxoruxevag.weebly.com/uploads/1/3/1/6/131606876/6899067.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422377/normal_600ff873f122a.pdfIn PDF document text
    • https://cdn.sqhk.co/tuwetebep/h4CjeeG/nfl_fantasy_draft_cheat_sheet_excel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477626/normal_6029658802e2d.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvitatutuv/4Ujdrgj/carrom_superstar_app_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415331/normal_60050d95d0daf.pdfIn PDF document text
    • http://appletopshop.ru/bhai_bolte_dj_remix_songhf8bm.pdfIn PDF document text
    • http://pasendapp.online/kavizuxosupogoliwejuwuxoauyzg.pdfIn PDF document text
    • http://topstop.site/valses_poeticos_granados_guitar8gevn.pdfIn PDF document text
    • http://copyrighthelpcentral.com/him_eesh_madaan_video_youtubeqpj7e.pdfIn PDF document text
    • http://drive4mclanemilwaukee.com/983295052631rz00.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xupasafagimi.rf.gd/kijobul.pdfIn PDF document text
    • http://wekapalipewux.epizy.com/kikovatube.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_off0000cd70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD70 4748 bytes
SHA-256: 975e66b8e0fe6c5971fb42b4d434bac09acac227e13a70221a1c6891fbf12cce
font_01_sfnt_off0000dd82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD82 10620 bytes
SHA-256: 4b63972b9a225e6d388d0db969fc5752fd691c67861e569a09585681055f861e

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