Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ff96c989f716133…

MALICIOUS

PDF

76.6 KB Created: 2021-02-02 16:00:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c5c8f611a5497193c656472ed8766e1a SHA-1: 8608dd2e3d24d2ff003b7050c58d55330de267a1 SHA-256: 3ff96c989f7161333e76320b7de5420cc20e6c71bcd78c403620f0be15ec0ca1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/aws?utm_term=new+car+racing+games+2018 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4424645/normal_600f256351787.pdfIn PDF document text
    • https://cdn.sqhk.co/muxaferamet/hehdhfR/mods_for_minecraft_pe_by_mcpe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416125/normal_60032324aafee.pdfIn PDF document text
    • https://cdn.sqhk.co/wavagowew/geia7gi/calculate_percent_change_year_over_year_excel.pdfIn PDF document text
    • http://lixuzixewufixib.66ghz.com/cell_division_mitosis_and_cytokinesis_worksheet.pdfIn PDF document text
    • http://trenolgia.buzz/940563594660go5n.pdfIn PDF document text
    • http://help-lnstagramcopyrights-verify.com/linux_kernel_networking_implementatiois3t.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425255/normal_5ff9789d03ea8.pdfIn PDF document text
    • http://infokurs.design/gelumazufitavoteleqsdrl.pdfIn PDF document text
    • http://mivakoxukike.22web.org/45592565220.pdfIn PDF document text
    • https://cdn.sqhk.co/tipusuzog/6hdcihd/dead_ahead_zombie_warfare_cheats_ios.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dupetomumipur.rf.gd/51412340435.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/40753948353.pdfIn PDF document text
    • http://jikibepedoroto.epizy.com/battlelands_royale_apkmonk.pdfIn PDF document text
    • https://s3.amazonaws.com/sebunuzu/free_keynote_template_medical.pdfIn PDF document text
    • http://runoxujozu.rf.gd/passport_application_form_malawi.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/30470208966.pdfIn PDF document text
    • http://kiduvunizujenav.rf.gd/teaching_bursaries_for_2018_application_forms.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_off0000ef43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF43 5668 bytes
SHA-256: 814946a30047ffb9085e74073ae4594f8132689b4dc0ad02340211599df92e35
font_01_sfnt_off00010299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10299 10236 bytes
SHA-256: 9b7a9c4dfb6ea972357c0fa0d546facfe79a42606c17f14bc7fb2961278d5066