Malicious PDF — malware analysis report

Static analysis result for SHA-256 75aed0024096e39d…

MALICIOUS

PDF

96.9 KB Created: 2021-04-05 05:48:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a77d2c8471d24cbbeff1041f782bdb71 SHA-1: ea7cb5fd9d3b70bea7112d21ce274639eff89b2f SHA-256: 75aed0024096e39d6ee311f3b5e484d683f37240c2e16aba9ea5d9068f0d3410
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/award?keyword=vertical+axis+wind+turbine+thesis+pdf PDF link annotation
    • http://keep-travel.com/sozawufefipeburlgbs.pdfIn PDF document text
    • http://vbruti.site/sagibekamafusafixwcvv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470835/normal_6007e6abba453.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382420/normal_602e469cb3303.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/sugosubexez/ladepolobozexaruvexoge.pdfIn PDF document text
    • https://s3.amazonaws.com/tuletivotarupu/angularjs_find_element_in_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/sipolazas.pdfIn PDF document text
    • https://s3.amazonaws.com/rakabexozu/avon_catalogue_november_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/tugumeb/dojon.pdfIn PDF document text
    • https://s3.amazonaws.com/tudawufed/circular_saw_rail_guide_system.pdfIn PDF document text
    • https://s3.amazonaws.com/gatazeromij/evenflo_symphony_lx_booster_mode.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/jotalazoxewaxenumi.pdfIn PDF document text
    • https://s3.amazonaws.com/ziwuvijevo/punikifisofukoxikusopewuj.pdfIn PDF document text
    • https://s3.amazonaws.com/natewared/organic_chemistry_david_klein_3rd_edition_solutions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7f1b697-9e92-4c7b-9cf4-56d3bcf2b2d9/vocabulary_builder_app_ios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5bd4e0b-0082-4366-a86b-11f0f620aae8/marx_communist_manifesto_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/redegelesibif/edc_canada_annual_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/816dde1e-89bd-4b0b-bb04-a1fcc6f23d68/temas_presentes_en_la_casa_de_bernarda_alba.pdfIn PDF document text
    • https://s3.amazonaws.com/vexeliku/ariston_oven_manual_cp_859.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_off00013be7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BE7 5508 bytes
SHA-256: 967b4ee3cd9477758de5101cf2a18e2ae687a01d0461949c29f0a615745860c7
font_01_sfnt_off00014eb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14EB2 11620 bytes
SHA-256: af7cb016b8995e9cf6601ef8d00c1830c54bff3544971663c8604218a640f143

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