Malicious PDF — malware analysis report

Static analysis result for SHA-256 00731116758b5db0…

MALICIOUS

PDF

73.1 KB Created: 2021-03-16 01:21:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 155cdebcb2381762938c3be5b25a1357 SHA-1: 80e93c1f5a93609bf406a8a9b4d7e669783bbc5e SHA-256: 00731116758b5db0874af048c4df28410fef2cbe3503e855167f38c7fd5fefd5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://jacksth.ru/award?keyword=fretboard+roadmaps+bass+guitar+pdf PDF link annotation
    • http://jenewazajasazu.getenjoyment.net/25742276193.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469626/normal_600957acb9ea6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490128/normal_603928d8cbe6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420029/normal_6011d77338274.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490519/normal_5fe46b5200ca2.pdfIn PDF document text
    • http://fabujisaw.mygamesonline.org/kekaragidetefo.pdfIn PDF document text
    • http://ruxuzosok.mywebcommunity.org/utilitarianism_mill.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374002/normal_601dd42f335f6.pdfIn PDF document text
    • http://rofuxipof.mywebcommunity.org/5929007250.pdfIn PDF document text
    • http://penageli.getenjoyment.net/26408225769.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382209/normal_5febd41d8aebe.pdfIn PDF document text
    • http://pewujok.mypressonline.com/basic_english_grammar_book_8th_class.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422627/normal_5ff5e1cfb7cca.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/126b4e00-a4c1-470a-ab9c-e8b059efbdcd/pioneer_gm-a5602_manual_espaol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8094efab-e3d1-4ef6-9ea1-43ee0daa15f3/2008_jeep_grand_cherokee_3.0_crd_problems.pdfIn PDF document text
    • https://679cd94f-bb1f-411a-9684-d99498fe93d6.filesusr.com/ugd/ce16d4_463238e39a11457ead2570a3bac4751a.pdf?index=trueIn PDF document text
    • http://bavotuvezomevi.myartsonline.com/94574821126.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb741b74-6f4f-4c6d-b43b-eab412e8b248/dyson_absolute_dc17.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f7255a9-4005-4d7f-a12e-c065673c7c41/what_is_power_mediation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67a84f32-a68c-414b-bd72-76942a64386a/zavinurojivuxe.pdfIn PDF document text
    • https://332892e0-6a2b-40ad-946e-e7c92c61c867.filesusr.com/ugd/3e5d97_fbd78f8b423d4f45a4f23891ec14af72.pdf?index=trueIn PDF document text
    • http://zitadufafasid.onlinewebshop.net/como_cambiar_de_pulgadas_a_milimetros_en_mastercam.pdfIn PDF document text
    • https://b7eb3c74-9f10-4efd-a612-efb7ea03662f.filesusr.com/ugd/7198c1_3b681692debe463d94da228ca0140e5a.pdf?index=trueIn PDF document text
    • https://709e7e89-b264-4d73-b757-064736ed86f1.filesusr.com/ugd/f523c3_3658a017daae4e338a2dc821205d19c3.pdf?index=trueIn 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_off0000db8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB8D 5424 bytes
SHA-256: f1135690bf21a0422a7decbe48fadbac4f989648646292aaddbacc10e3383dca
font_01_sfnt_off0000ede4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDE4 11580 bytes
SHA-256: d0fd7efda83c785aa6ac0881266cb3dfa438bc25189451d6985119add9270251

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