Malicious PDF — malware analysis report

Static analysis result for SHA-256 32d42911ad8e9475…

MALICIOUS

PDF

34.8 KB Created: 2020-11-07 00:38:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: b5ee1803fc7c5748acacb046dc4aa0aa SHA-1: 1cae81356c326cd960e25e47e0a810119fe74c9a SHA-256: 32d42911ad8e94751ebb7ec57258192987029360aca6652a82a446bf1161d84f
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafffi.ru/123?keyword=harvest+moon+guide+book PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369511/normal_5fa3c1e9c7ab0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463807/normal_5fa58bd472f2d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365560/normal_5f86fee906a02.pdfIn PDF document text
    • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/bawarobu.pdfIn PDF document text
    • https://tipefejiri.weebly.com/uploads/1/3/0/9/130969755/goxufalu-buwokututa-kuvuli-gafuzuvasiki.pdfIn PDF document text
    • https://zivawopoxiba.weebly.com/uploads/1/3/4/3/134355714/pepefaden.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/5dfa3903-05ea-4673-aa72-3ac02a4bc214/53993721918.pdfIn PDF document text
    • https://s3.amazonaws.com/jeponowon/vilakidamivuwituv.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/87073256693.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/677a8c72-434a-4aa7-a8ff-bee1a4ecd7b8/pastoralism_definition_geography.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_off000049c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49C1 5336 bytes
SHA-256: c30468945da97ffc7a326815d6ff9bb61f7f7d73ca41d0a3407fb2ae9f28c32c
font_01_sfnt_off00005bd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BD5 10272 bytes
SHA-256: 4c3c3e7db4dbe6f08fdf2912c4ccb39a8352db9dc574d0987998ecc3cc1db006

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