Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce8714824e5bd8a4…

MALICIOUS

PDF

77.6 KB Created: 2021-02-23 08:13:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 4f0f5a649c11f97bbf66741127c65acd SHA-1: 34d95a7d1c86c7385b964659d4b36ada08d5b82a SHA-256: ce8714824e5bd8a40cde587088fb8865cc0cd178bf1ebc6352445fb01e7018f4
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://baarspo.ru/aws?utm_term=laars+gas+boiler+reviews PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4407788/normal_5ff4d1fe3b0fd.pdfIn PDF document text
    • http://vitrinachel.ru/wkhtmltopdf_php_optionszyqbf.pdfIn PDF document text
    • http://guwejusu.22web.org/united_technologies_annual_report_2015.pdfIn PDF document text
    • http://fewizoge.22web.org/xitesajuritupixodunubilu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376599/normal_60143ea6e1eb4.pdfIn PDF document text
    • http://ryukzak.digital/twitch_guide_runeszb1p8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485927/normal_5fd99705aa3c8.pdfIn PDF document text
    • http://vashe-zdorovie.xyz/college_algebra_clep_practice_testgv3gb.pdfIn PDF document text
    • https://cdn.sqhk.co/zezoxomop/ZgficCh/wego_music_city_star.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427287/normal_601aca776a259.pdfIn PDF document text
    • http://goproits.com/foxtel_espn_tv_guide_nbai14kl.pdfIn PDF document text
    • https://cdn.sqhk.co/budajawisore/hdmhfZv/matrixyl_synthe_6_serum_1_oz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408471/normal_600bf2555d4d2.pdfIn PDF document text
    • https://cdn.sqhk.co/zereseful/Bhijbhj/mubujazezajovuzabavu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370068/normal_602e51e860e54.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sitozi/siemens_masterdrive_ac_dc_rectifier_manual.pdfIn PDF document text
    • http://bitegovaduxigag.epizy.com/dormant_company_accounts_and_tax_return_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/fusegelakixag.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_off0000f131.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF131 5088 bytes
SHA-256: 51fa6855eb17c3dfd8fc50d1de01181a237a5f205821e4097af510d39ad89fb8
font_01_sfnt_off000102a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102A6 11496 bytes
SHA-256: 51b2fedb1194ea7eb134d2919410cc7a7a96e219ae484759ff28705992a98e0b