Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3d46549690e25ab…

MALICIOUS

PDF

72.1 KB Created: 2021-04-01 15:08:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 23c356dc705f7bca7a618409426472f8 SHA-1: ef2b9caafb82c83fd46f30bc278f997b63bfc58f SHA-256: b3d46549690e25ab8e4d7348222321ee9175a09d11c5ffc7eb322e9dbce8022a
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, with a primary suspicious URL pointing to a domain associated with malicious activity. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm or redirection mechanism. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware delivery via the embedded links.

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
  • 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.
  • 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://jumiwimov.ru/strik?utm_term=volume+price+confirmation+indicator+tradingview PDF link annotation
    • https://dunokosira.weebly.com/uploads/1/3/5/3/135349308/4aac151f.pdfIn PDF document text
    • https://vudolexululuj.weebly.com/uploads/1/3/1/0/131070894/fivatuve.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371269/normal_6005978f4785a.pdfIn PDF document text
    • https://xelavizagak.weebly.com/uploads/1/3/5/3/135325118/f7a0a6e57.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471081/normal_5feb0328dd106.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484804/normal_5fce8a907ce98.pdfIn PDF document text
    • http://ru-1.casa/twilight_breaking_dawn_part_1_full_movie_english_downloadsi398.pdfIn PDF document text
    • https://mifepomaxa.weebly.com/uploads/1/3/4/8/134897651/ditomedivibedelu.pdfIn PDF document text
    • https://sipizoreju.weebly.com/uploads/1/3/4/1/134131451/xitib_soken_wukemabezo_zidokenuvonok.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384318/normal_60595b7de31a4.pdfIn PDF document text
    • https://pixamowogiru.weebly.com/uploads/1/3/4/5/134590731/nupej.pdfIn PDF document text
    • http://remont-pc.website/kosevozuzipunomulas45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458145/normal_6013c35cbe044.pdfIn PDF document text
    • http://lessonsonline.site/chocolate_cake_recipe_without_icing_sugarixqd9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/punurum/how_to_draft_a_legal_opinion_south_africa.pdfIn PDF document text
    • https://s3.amazonaws.com/naxozelozude/pubomu.pdfIn PDF document text
    • https://s3.amazonaws.com/zeworibuzoza/dog_ownership_certificate_template.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/qu_es_inteligencia_emocional.pdfIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/57441857487.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_off0000d918.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD918 5412 bytes
SHA-256: d870b2816b7816efbcff0f03b6e24f87726de2f8e5ed625f9f66f96e09f4c4e7
font_01_sfnt_off0000eb8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8B 11496 bytes
SHA-256: 08e4002479f6da6b4aecef7dc0b4f5299b2c7936d5a61866d10b2e2a1ba6e159

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