Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd2d548ce8b3b837…

MALICIOUS

PDF

73.1 KB Created: 2021-03-17 08:59:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d9057d75fdfb1b6986f22d7a9bc315eb SHA-1: 464b2d24c6adb6859e9566eadf09d9dc39dd19ce SHA-256: bd2d548ce8b3b83752063316349bdb8375a6ac10f366c95b5882f21aebf8ae36
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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://mezovuduw.ru/award?keyword=deep+groove+ball+bearing+skf+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4501037/normal_6049e69769b3c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485587/normal_6008b25902d25.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388613/normal_6036bebd94350.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446789/normal_5ff3e07c44a88.pdfIn PDF document text
    • http://verefdliyvtorogo.xyz/425147616299o1ml.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370791/normal_5ff2af8537aa4.pdfIn PDF document text
    • http://medyahanem.com/gukokivadevegaxazj1sh.pdfIn PDF document text
    • https://muxiduxipa.weebly.com/uploads/1/3/5/3/135319221/2754560.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453747/normal_5fed5f53ccbc5.pdfIn PDF document text
    • https://revawovaweku.weebly.com/uploads/1/3/4/0/134013066/2410207.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452618/normal_6015b6209b4c7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378164/normal_5ff302a51b96e.pdfIn PDF document text
    • https://xutonipojoneri.weebly.com/uploads/1/3/4/6/134667901/vewumewi_jumomerakaso.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381321/normal_5fd05c16e1b05.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383918/normal_60316c070f245.pdfIn PDF document text
    • https://larigagip.weebly.com/uploads/1/3/4/8/134887586/4770839.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486550/normal_6035a16f02c03.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/1988_evinrude_9.9_parts_diagram.pdfIn PDF document text
    • https://s3.amazonaws.com/paxunu/piroxanasilepuxegalilu.pdfIn PDF document text
    • https://s3.amazonaws.com/jejulurowev/628608927.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/alicia_keys_2019_grammy_awards_performance.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c89d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC89D 5180 bytes
SHA-256: 94207281562dec4bf88b9cb3f39b687f34d31762467b801f743da269a90754d5
font_01_sfnt_off0000da4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA4A 18852 bytes
SHA-256: 11836074f6d0ffa884c08e05ceddad171b9031a3e912e21f11dc5ef74a12a897
font_02_sfnt_off000106d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106D1 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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