Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6d19d137d19314d…

MALICIOUS

PDF

75.4 KB Created: 2021-02-10 20:40:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 95c7a84383ee991be2eeaab1b6166e76 SHA-1: ccd1caff59dc91ba50f784b32da1a70e4d138949 SHA-256: b6d19d137d19314d005113e3647d02215fb9df45fda1f609cc6459f44d730b5a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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/123?utm_term=final+fantasy+9+apk+kostenlos+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4457586/normal_5fcd9dd6ab72d.pdfIn PDF document text
    • https://cdn.sqhk.co/menekilebuz/chbfFbh/97458897264.pdfIn PDF document text
    • http://furniture21.online/stainless_steel_sheet_gauge_tolerance8zafq.pdfIn PDF document text
    • https://cdn.sqhk.co/regisanozoxo/NghGiec/sloth_goonies_meme_back_to_school.pdfIn PDF document text
    • http://tevoriveterusof.22web.org/latest_hollywood_action_movies_2019.pdfIn PDF document text
    • http://ifeelgood.club/50088446384fn21z.pdfIn PDF document text
    • https://cdn.sqhk.co/nopusixinid/cZja3hg/juancash_buy_load_pay_bills_send_money.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417122/normal_5fcf6758df4a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425916/normal_601fd1655a6ba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388165/normal_5fef9ebc4cd63.pdfIn PDF document text
    • https://cdn.sqhk.co/gufemazibafi/iie6hay/podarujuxubeguv.pdfIn PDF document text
    • https://cdn.sqhk.co/suwapipejob/bhh0XcS/the_arcade_rabbit.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/risalenefazozo/zozas.pdfIn PDF document text
    • http://sobibuxasegisun.rf.gd/berger_paints_exterior_colour_combination.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/18463164777.pdfIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/speaker_booster_app_free.pdfIn PDF document text
    • http://bipaxoxibiva.rf.gd/canonical_form_of_state_model.pdfIn PDF document text
    • https://s3.amazonaws.com/bodajaku/wejilumoxukel.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_off0000e5b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5B7 5308 bytes
SHA-256: 57b47dff2f61f16ed6efe5b36b04f6d1442b7e624daa39850fa2720d7daf35ac
font_01_sfnt_off0000f7fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7FB 11724 bytes
SHA-256: 84910383cbc753fb469f8118c105fc14c0d13e3f57642bd4426de13ac1f6083a