Malicious PDF — malware analysis report

Static analysis result for SHA-256 2195174cda379507…

MALICIOUS

PDF

72.8 KB Created: 2021-02-18 14:56:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9b5b5f5537af89c42fc2bf32fcf43566 SHA-1: 108a58e4865e9a0c4ade739bc5b4909a56cd4647 SHA-256: 2195174cda379507e44e69f760aadfde0e5fe101b4100e4371fc9b1056f4de9c
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://maypoin.ru/wix?keyword=dyson+am04+manual PDF link annotation
    • https://latimemoniborij.weebly.com/uploads/1/3/1/4/131437487/74904795c0cfc5.pdfIn PDF document text
    • https://tufafoselebore.weebly.com/uploads/1/3/5/3/135389740/xutoxinefolane_lisafakuz.pdfIn PDF document text
    • https://betijefozivur.weebly.com/uploads/1/3/0/7/130776077/1209441.pdfIn PDF document text
    • https://bopelesi.weebly.com/uploads/1/3/0/8/130874615/levosedaj_sebopuke_dopobuxed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425533/normal_5ffcdae4dd78a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383475/normal_601d3d4d486a2.pdfIn PDF document text
    • https://wisiwojapano.weebly.com/uploads/1/3/4/8/134896472/lakepanug-bewerejilawab.pdfIn PDF document text
    • https://xijapesulole.weebly.com/uploads/1/3/4/5/134588017/c8f0953d5da693.pdfIn PDF document text
    • http://copytoshka.ru/license_plate_search_free_ownermsknk.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/sorogamat/hubspot_digital_marketing_strategy_template.pdfIn PDF document text
    • https://s3.amazonaws.com/desekusoxi/dadijavamojuxaxewu.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/systems_engineering_project_management_approach.pdfIn PDF document text
    • https://s3.amazonaws.com/tixeligufokup/boro_chele_full_natok.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/67649307066.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/set_background_color_in_xamarin_android.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/latest_android_sdk_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/geographical_fugue_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/fezenur/wwe_raw_bleacher_report_grades.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_off0000e280.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE280 5064 bytes
SHA-256: db433ed9fbdfbbf7b953f49b1c87b325bf3e32abd61348351a49f797011a21d7
font_01_sfnt_off0000f3bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3BC 9972 bytes
SHA-256: 9bb70cb6bf0781d60d3df18d63fab8b44a64726145bf66546251ce090eff8b87

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