Malicious PDF — malware analysis report

Static analysis result for SHA-256 da143ca0551df939…

MALICIOUS

PDF

83.9 KB Created: 2021-01-06 02:35:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 24639b58097501049f468f5a6f43c682 SHA-1: 590b267ce4c675556931bff356e354c80bd308e1 SHA-256: da143ca0551df939d693209af3480a83bb607c1728742ff44b6aa45d96805c82
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ggtraff.ru/shook?utm_term=b2b+sales+best+books In PDF document text
    • https://cdn-cms.f-static.net/uploads/4381988/normal_5fa967fe32d6f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374371/normal_5fd8cb69591ba.pdfIn PDF document text
    • https://cdn.sqhk.co/penunotati/ghQhcEj/google_calendar_widget_android.pdfIn PDF document text
    • https://cdn.sqhk.co/peluxisomex/agjMQVT/nolumenuxuwuzoxiwi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426974/normal_5fe528a4b7db9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b692cc46-0f85-48fa-a001-aa78496c9c23/duke_energy_power_outage_telephone_number.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/21ab93c2-7c66-4714-81e8-b4ba6717ce86/ffxiv_error_5006.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/41603307293.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e13e822-3fdc-4f33-885c-1ca4777889dc/44562584498.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f4ea967-f6bb-4f35-a2be-5a223ddd884e/47448709869.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/najuruxonuxedekuwalopax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dfed3cb6-6593-4fab-bf66-b2036791dbd7/direwirolev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4841f618-26a0-4e50-9127-f2014188d946/riteguresenunafebolud.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/31376979714.pdfIn PDF document text
    • https://s3.amazonaws.com/dujepav/dupawiriwamewo.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_off00010ce0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CE0 4968 bytes
SHA-256: 019fec2e2fd58970e9a6656ca02e35385e18a215da319b113661886ca3cda42e
font_01_sfnt_off00011ddd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DDD 11016 bytes
SHA-256: c2edf5db1ed12ff47124c145c574f70b1a69e0ab6b19ee1b33f752510720b112

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