Malicious PDF — malware analysis report

Static analysis result for SHA-256 30e80470ae9c5cec…

MALICIOUS

PDF

77.5 KB Created: 2021-03-07 03:47:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d7be2f5bf1b9e3506fda408b7372d5ee SHA-1: d0ea00d9c476d9a3bed73f4fb46b271a7b5cc7db SHA-256: 30e80470ae9c5cec7fd407be2c611090fdb015151712057df28d4f70143757db
186 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://kuzutuzo.ru/award?keyword=how+to+get+google+maps+to+open+at+my+location PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4527902/normal_60287c5022441.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443819/normal_5fdac0616705f.pdfIn PDF document text
    • https://cdn.sqhk.co/wubunepan/SjcuA8t/5633296613.pdfIn PDF document text
    • https://cdn.sqhk.co/purawewus/jjjbD1Q/human_skeleton_puzzle_game.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421215/normal_5ff68570e7567.pdfIn PDF document text
    • https://cdn.sqhk.co/rojawamusula/qfKiiig/my_icloud_storage_is_almost_full.pdfIn PDF document text
    • https://cdn.sqhk.co/gigatakel/btjeogc/lobebusuguselalowonadawu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443598/normal_6025b58524759.pdfIn PDF document text
    • http://joy-todays.online/butterhead_lettuce_calories_per_leafcmncy.pdfIn PDF document text
    • https://cdn.sqhk.co/lunosupi/jjzjgie/47490193132.pdfIn PDF document text
    • http://smartbright.club/ginkgo_tree_planting_guideyq87f.pdfIn PDF document text
    • https://cdn.sqhk.co/gibiganegaz/midiev0/pacification_definition_oxford.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://61069a5e-3c5f-4884-a3c7-8c7552058b74.filesusr.com/ugd/0789d5_7f2223b181e24bce986ddfa2b8cd5614.pdf?index=trueIn PDF document text
    • https://0bef8565-087b-457a-960c-b0529baba50c.filesusr.com/ugd/638000_02de349c95754706863b69601fbb93ce.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tazopaju/66286788325.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/140094984.pdfIn PDF document text
    • https://5cbbff6b-7c47-4fbb-abda-9de5069fbc88.filesusr.com/ugd/1a89c8_ebdaa07a1bad4461ac6568e8a591caa5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wutogugej/segoxuwefulitopofuz.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_off0000f19b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF19B 5312 bytes
SHA-256: 7d15572915ec01e641e94a9029b24410bf19fe405bf45af5ef5aaa898ca77f94
font_01_sfnt_off000103bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103BC 11004 bytes
SHA-256: d929bfbd23430c21024d75a69d198500342a3e13fd2931553c33f11301eb7bd1

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