Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3210e214f553b3c…

MALICIOUS

PDF

53.0 KB Created: 2020-10-15 01:21:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: ff9b1ad74de5f31a0f5539b6069b26c3 SHA-1: 32624eee0ac5e635ca9603d78568ca13c9100e8a SHA-256: e3210e214f553b3cdbfc25c86bab8ecdd9900991cd7ff82e3d64662990fe7e75
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • 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://gettraff.ru/123?keyword=rasif+marcelino+freire+pdf In PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/tiladejonu.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/xududev-ledavodu-jatulivarolaxe-bixebenal.pdfIn PDF document text
    • https://gamupizesusaza.weebly.com/uploads/1/3/1/3/131398140/nabomet.pdfIn PDF document text
    • https://vozutadisifik.weebly.com/uploads/1/3/1/4/131483249/074323a3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6065/7817/files/personal_excellence_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7309/2766/files/black__decker_gh900_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/7702/1079/files/bully_english_2_jawaban.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9390/0958/files/nuwave_air_fryer_10_qt_accessories.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd95f7b5-ec45-4159-a0a0-a2a03ba3871d/melusimebaxiwidowiwozela.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6525da8b-a439-4383-9111-91f2343862b9/zozirufikusabikef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16d74bee-06bf-4a42-b159-58e983e339ff/rojititufikiwitamolarijo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25c0399d-2133-4d41-8a2e-78430bc5c056/kibilalanubowano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1634/6007/files/16663703300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9808/8628/files/cisco_300_series_switches_data_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/9267/2157/files/photo_designing_apps_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2722/7036/files/kusumumupolapapixinegubaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0147/0366/files/lee_gi-kwang_girlfriend.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3315/0118/files/sabukegisetene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7020/0737/files/haar_wavelet_transform_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3117/4043/files/ganibosupono.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_off00009129.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9129 5308 bytes
SHA-256: 4ed58370e570066b74d1bd820b53f1215c974fe382ce41af45456aab82668e69
font_01_sfnt_off0000a315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA315 10512 bytes
SHA-256: 6a16738ec5359524f92c7aadcbd726aef7476dfe82e686fe3f4d908eebdb04a1

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