Malicious PDF — malware analysis report

Static analysis result for SHA-256 af3b147ec5bb5b7a…

MALICIOUS

PDF

70.9 KB Created: 2021-02-19 00:31:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ae2c3f22947669b638dae4be5ca0deae SHA-1: 77acd1d21d7dd0e004f4bf7342008f5c49de585e SHA-256: af3b147ec5bb5b7a149631f4a1467af8d286adc6d32f01dd7a4d0d0f8e26e717
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://leonvi.ru/wix?keyword=fishing+clash+cheats+for+iphone PDF link annotation
    • https://vudujetejagug.weebly.com/uploads/1/3/4/6/134674723/55b53d3e7d410e1.pdfIn PDF document text
    • https://towizitubozabo.weebly.com/uploads/1/3/5/4/135400713/jeritijifeboki.pdfIn PDF document text
    • https://vetasokimatajed.weebly.com/uploads/1/3/5/2/135296406/keman.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378641/normal_5fd19e5028fc8.pdfIn PDF document text
    • https://sipesavuw.weebly.com/uploads/1/3/4/6/134697333/aa2fa06db28c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470981/normal_5fdc37105b476.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/wogikokuzotaxa/bosch_electronic_aquastop_dishwasher_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/pokemon_revolution_online_cerulean_cave_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxuxemu/biodermis_silicone_scar_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/gudukupir/mcd_self_assessment_property_tax_form.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/hardness_test_report.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/load_css_stylesheet_php.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/kuta_geometry_free_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/bogeguva/kms_activator_office_2010_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/zeworibuzoza/15257597031.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/exceeding_the_core_answer_key_8th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/fukezavazuj/nabalekoz.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/forbes_travel_guide_2018_macau.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/livro_bioclimatologia_animal.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_off0000da06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA06 5232 bytes
SHA-256: fdbb3960509651705e9573084f449aa4710755aafee5f370abd6629a1b8cc946
font_01_sfnt_off0000ebde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBDE 10084 bytes
SHA-256: ca5698c978bae13338a21c463d8d804da1b1ecd19e1dd11e9ddcdbaf6bbca617

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