Malicious PDF — malware analysis report

Static analysis result for SHA-256 8336d623c4c95f65…

MALICIOUS

PDF

74.8 KB Created: 2021-03-31 16:16:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: f3b45c48a1c55cd5896af12ee1c32358 SHA-1: dabd38064f2d87d32017df53202687b8def97a37 SHA-256: 8336d623c4c95f6517694eeb3f29e8dfe8ad70b53eb38d35ebb3273bfac77157
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to a suspicious domain, likely intended for phishing or credential harvesting. The PDF structure and embedded URI heuristic further support this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/wix?keyword=door+county+real+estate+records PDF link annotation
    • http://rinusiwujegabu.medianewsonline.com/leukocytoclastic_vasculitis_treatment.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisimak/hfjcChi/rubber_duck_rain_boots_toddler.pdfIn PDF document text
    • http://xevamoz.mygamesonline.org/the_berenstain_bears_show_some_respect.pdfIn PDF document text
    • http://kajuzumanaz.sportsontheweb.net/jafomuguzu.pdfIn PDF document text
    • https://cdn.sqhk.co/vuvapolaxaj/9jcijhd/defender_90_review_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370302/normal_602c122737076.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378831/normal_5ff45b558b11d.pdfIn PDF document text
    • https://cdn.sqhk.co/xidafigutoxa/WjcxjjK/ninja_awesome_apk_uptodown.pdfIn PDF document text
    • https://cdn.sqhk.co/panafilaputu/idfhSic/simple_css_social_media_icons.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/daselex/periodic_and_non_periodic_signals_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/bofake/how_long_to_study_cfa_level_1.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/82412641613.pdfIn PDF document text
    • https://s3.amazonaws.com/kitakilesa/livowakevejapowaxozopo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5aaea076-30c9-42cc-9675-8ca6d8e9c60c/joxudole.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/66471819616.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8c41130-6c11-4ccf-a821-c8960469a959/48534028342.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/18495620821.pdfIn PDF document text
    • http://zejusamipokera.myartsonline.com/human_trafficking_prevention_methods.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/861b1ca4-b519-4780-93bc-4a15063ed829/90762254213.pdfIn PDF document text
    • http://tibamupebunod.atwebpages.com/bonnes_pratiques_de_fabrication_document_de_rfrence_version_3._0.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d9fe8e0-acb0-4adf-8d27-e1b6409d8518/romeo_y_julieta_cigars_1875.pdfIn PDF document text
    • https://s3.amazonaws.com/nevowimo/gubekefelosuzomuzakitom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2a4a416-5dcd-435f-afd7-d3bd8a7b7700/how_to_use_a_manual_watch.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/korean_action_movies_with_english_subtitles.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_off0000e581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE581 5032 bytes
SHA-256: 8b691f60c599c7994dfe4e9c6c613357011c54b9b44dd9f084ad0e6a34fa1721
font_01_sfnt_off0000f6bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6BB 10940 bytes
SHA-256: e57feb17f55a76e4dd8e7f93f8c87e2e80ec3c92be999896607b733c401bfa66

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