Malicious PDF — malware analysis report

Static analysis result for SHA-256 be3d29466c38ff1c…

MALICIOUS

PDF

79.8 KB Created: 2021-02-12 12:06:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1f57edd7ec3d4609a06bfece32608bad SHA-1: abf543e66bb179f16fee48e2421ce16e34844200 SHA-256: be3d29466c38ff1c2ccd8f0489419febf7f342df9f9d7bc80b5cc5074f46d7fa
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://seumenha.ru/wix?keyword=el+diloggun+pdf PDF link annotation
    • https://xaxibilezulaf.weebly.com/uploads/1/3/4/0/134096047/897693f66285c0.pdfIn PDF document text
    • https://pejasosujotu.weebly.com/uploads/1/3/2/6/132683127/6598405.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497075/normal_600ade6909fb5.pdfIn PDF document text
    • http://wazixusazajafem.22web.org/types_of_cognitive_biases.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447916/normal_5ff3f3b34bdaa.pdfIn PDF document text
    • https://cdn.sqhk.co/fimegasaz/ghFIsEY/us_atlantic_fleet_ww2.pdfIn PDF document text
    • https://garovinarabibaf.weebly.com/uploads/1/3/5/2/135293384/butedipar.pdfIn PDF document text
    • https://larigagip.weebly.com/uploads/1/3/4/8/134887586/7e90d.pdfIn PDF document text
    • https://cdn.sqhk.co/jisaside/Ohejijj/77084952488.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/turip/apple_airpods_android.pdfIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/wajimitevazuvepewegezarir.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/funetikirovinemeb.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/january_2020_blank_calendar_template.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/nursing_case_study_sample_format.pdfIn PDF document text
    • https://s3.amazonaws.com/nawosineromigi/wegovejematitabipi.pdfIn PDF document text
    • https://s3.amazonaws.com/jopomodilamego/wojinibabosulezupese.pdfIn PDF document text
    • http://legekiwogitevil.epizy.com/9917839739.pdfIn PDF document text
    • https://s3.amazonaws.com/semuxemakaw/how_to_answer_how_are_you_question.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_off0000fc71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC71 4680 bytes
SHA-256: a68ab61bdb688f8f95b26518800e98553e3d2d0d9f4636baf0c276592d1a5e6a
font_01_sfnt_off00010c81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C81 11252 bytes
SHA-256: ee48ff91eb996f30ad9166be1d5f055782fd5ddb787a5720f12d3f0a18481fc3

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