Malicious PDF — malware analysis report

Static analysis result for SHA-256 7568ca76931528f4…

MALICIOUS

PDF

68.8 KB Created: 2021-03-12 15:10:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 72c9fcbe5bf0e148a8b5eeaa0c55cb1b SHA-1: e481c6b04dc0ca24e6cfebc780e49daf2f5fd1a3 SHA-256: 7568ca76931528f4dd8386954d11b8f64ade5ce749b3eb6d58ab8930b8c323bc
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xajibur.ru/award?keyword=bescherelle+anglais+le+vocabulaire+pdf PDF link annotation
    • https://cdn.sqhk.co/dufimogemeka/uiiiaja/death_city_zombie_invasion_hack_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485587/normal_602fcff37c837.pdfIn PDF document text
    • https://xasejudezorakoz.weebly.com/uploads/1/3/0/8/130813307/tazopugojesagufa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417992/normal_6008c4bcf025e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488102/normal_60461f926ef11.pdfIn PDF document text
    • https://rotalexabif.weebly.com/uploads/1/3/1/3/131381819/fbf9a349d0.pdfIn PDF document text
    • https://cdn.sqhk.co/lerapuraroke/fvVzify/fisezupunomi.pdfIn PDF document text
    • http://zafikapasipugog.medianewsonline.com/what_lives_in_a_rainforest_ecosystem.pdfIn PDF document text
    • https://cdn.sqhk.co/dasofuduveje/esg9jgU/disufeludefata.pdfIn PDF document text
    • http://rejemezurufoveg.mywebcommunity.org/wafirajirodoxogurivivine.pdfIn PDF document text
    • https://cdn.sqhk.co/ridijafugemi/icOzNic/democratic_management_styles_definition.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499334/normal_603b38adec5b3.pdfIn PDF document text
    • https://cdn.sqhk.co/sinupupuzaxa/aOjhUjg/super_model_fashion_growth_diary_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/mekaxosur/r4hbkjj/98714725747.pdfIn PDF document text
    • https://lixezakokigek.weebly.com/uploads/1/3/4/5/134596317/xikukodo.pdfIn PDF document text
    • https://cdn.sqhk.co/nogawevorus/ifljjhj/derwent_charcoal_pencils_amazon.pdfIn PDF document text
    • https://xujarilo.weebly.com/uploads/1/3/4/6/134693127/pemutanaxolaviloz.pdfIn PDF document text
    • http://rexonina.medianewsonline.com/39150594607.pdfIn PDF document text
    • https://voteriboxovoviv.weebly.com/uploads/1/3/4/3/134352377/4120661.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/6522a884-ed76-4192-bbfa-feae5443643a/que_es_la_distribucion_normal_estandar_en_estadistica.pdfIn PDF document text
    • http://pusapovewazigu.onlinewebshop.net/how_to_use_the_ti_30x_iis_for_algebra.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88091c03-7582-4a94-aafe-463ba3bf78c3/covid_19_safety_signs_for_construction_sites.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_off0000cc20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC20 5668 bytes
SHA-256: 9f82eaa48adefdde7a4b34f80d4c5605b7056ee7919a91ef3d9110ea40c61ab2
font_01_sfnt_off0000df6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF6A 11180 bytes
SHA-256: 9f20e1892cac163d3f2e57b26f1632a534b16480a34d33c5e087176a2b267a93

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