Malicious PDF — malware analysis report

Static analysis result for SHA-256 350962ea34165f74…

MALICIOUS

PDF

75.6 KB Created: 2021-04-12 18:00:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ae32b7e1d0406f68da2c812ef5a9304a SHA-1: 29cf538ba43e32752360bdb9900bb551f1272f6f SHA-256: 350962ea34165f745c14c75e1d09b68055f46a6ebc481b363b55140fb7290252
136 Risk Score

Malware Insights

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

The PDF document contains an embedded link that redirects to a malicious URL, identified by heuristics as an SEO redirector for phishing. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a phishing site, likely for credential theft.

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://vilenefex.ru/strik?utm_term=how+to+run+a+pressure+cooker PDF link annotation
    • http://penoligis.22web.org/how_to_avoid_talking_to_someone_you_dont_like.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408184/normal_5ff6b3003ce60.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502268/normal_6006577a995aa.pdfIn PDF document text
    • http://digitalliteracyinstitute.com/nesuvofivaf8cgt.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/putararetobejopekewuxite.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/bright_futures_service_hours_sheet.pdfIn PDF document text
    • https://fojiwuduz.weebly.com/uploads/1/3/5/3/135309278/vafibosonal-fijabipego-sajaje-vulib.pdfIn PDF document text
    • http://waneboto.66ghz.com/th_digraph_worksheets_for_first_grade.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365546/normal_60164d057e653.pdfIn PDF document text
    • https://buvelixajotoneb.weebly.com/uploads/1/3/5/9/135982000/1b735.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/dajuzazijoparemagelixi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392218/normal_5fcd7582ca468.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/gl_assessment_maths_familiarisation_test_answers.pdfIn PDF document text
    • http://dostafood.xyz/simple_past_affirmative_negative_exercisesclm20.pdfIn PDF document text
    • https://wuzivizafexun.weebly.com/uploads/1/3/1/4/131453021/404312.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/91983177428.pdfIn PDF document text
    • http://study-english-05.site/86628223407ecn62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449422/normal_601e7abf877ee.pdfIn PDF document text
    • http://com-connexion.xyz/tabixuvuwgb1px.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rivozisotuwiris.rf.gd/amdocs_interview_questions_for_performance_testing.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_off0000eba9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA9 5012 bytes
SHA-256: a20d9ba41868aee12d4f7a4e3657d322c455a0e18d35d266c87cb9d6952c7514
font_01_sfnt_off0000fcd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCD4 10660 bytes
SHA-256: e6b5d45b58343674670050d9bb5c74eae7fee21c5f9dd3a164df6ebe25693444