Malicious PDF — malware analysis report

Static analysis result for SHA-256 82927fcc6a679304…

MALICIOUS

PDF

65.8 KB Created: 2021-02-23 18:41:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e14996bb37cece13f05c9c32aff68103 SHA-1: 2ee266e041cebfd24d6638b41fa51e049cac611f SHA-256: 82927fcc6a679304a7213d300c7003656de188c366996569dea1a731d2c74453
136 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
  • 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://baarspo.ru/123?utm_term=healbot+setup+for+resto+druid PDF link annotation
    • http://ninefuva.22web.org/42370889476.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/mipizaju/minecraft_for_pc_full_version.pdfIn PDF document text
    • http://nopasemetefut.epizy.com/rusipiwezidepega.pdfIn PDF document text
    • http://punumakiwibase.rf.gd/31721368311.pdfIn PDF document text
    • https://s3.amazonaws.com/damerirazib/fatopakotawezutisu.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/mailchimp_address_format.pdfIn PDF document text
    • http://zoxuwabemowel.epizy.com/fopuvikefinixitipadopo.pdfIn PDF document text
    • https://s3.amazonaws.com/roware/17890684495.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/zawemowigod.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/microsoft_project_cash_flow_template.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/good_answers_to_retail_interview_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/vidadaviwal/nefivagibovufujawaxa.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/nidopebitimi.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/juninofikumugedidavonar.pdfIn PDF document text
    • https://s3.amazonaws.com/jenisozazewubo/woman_hollering_creek_audiobook_free.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_off0000c33d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC33D 5136 bytes
SHA-256: 3cbf92329ecadde6e8ce3b3b608bb23fcced5e30a035ad4f98da2e0aa22f6005
font_01_sfnt_off0000d4b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4B6 11048 bytes
SHA-256: 959fb35461321519594376d95ee76a34d76bd0f2cec330bfd5c8eb32003626c3