Malicious PDF — malware analysis report

Static analysis result for SHA-256 238ea63f2cbdae95…

MALICIOUS

PDF

70.5 KB Created: 2021-02-19 10:43:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d5e1ebdf92c6b345c6f631f11b3e7081 SHA-1: 4304a9f7e42afd7695430dfed789d0d22dec19c1 SHA-256: 238ea63f2cbdae951cf288cb0a4925350ddb51417bdfb702373fcbedebef5247
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/wix?keyword=samsung+steam+dryer+manual+dv419aew%252Fxaa PDF link annotation
    • https://cdn.sqhk.co/puvubuzu/bWibagj/dining_room_sets_cheap.pdfIn PDF document text
    • http://neuroncraft.online/vuvuriguvobefamojolofaolyzn.pdfIn PDF document text
    • http://tomogorman.com/78293128387kkmyb.pdfIn PDF document text
    • https://tizijepen.weebly.com/uploads/1/3/4/2/134234944/f0f9149bf.pdfIn PDF document text
    • https://cdn.sqhk.co/zebenane/hfcQzp8/nejulamapolegenel.pdfIn PDF document text
    • http://carbags.site/super_crafting_and_building_2020_for_pcw5kaz.pdfIn PDF document text
    • http://anbieterbewertung-autoscoutch.com/lotigujov42kuf.pdfIn PDF document text
    • https://lelamibi.weebly.com/uploads/1/3/0/7/130738841/litiwazekuvilive.pdfIn PDF document text
    • https://garowowo.weebly.com/uploads/1/3/6/0/136033653/171121.pdfIn PDF document text
    • https://cdn.sqhk.co/regavebike/gfhdjhO/animal_warfare_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/kinemefuwa/i7At2GI/used_drum_set_for_sale_in_nigeria.pdfIn PDF document text
    • https://cdn.sqhk.co/diwamukef/hcheBsd/gipadurebebavato.pdfIn PDF document text
    • http://wovewor.iblogger.org/92484313105.pdfIn PDF document text
    • https://cdn.sqhk.co/madilaxetevo/jitrjgN/shoot_em_up_moviescounter.pdfIn PDF document text
    • https://cdn.sqhk.co/pesuxitum/2mGXn9o/talion_meaning_greek.pdfIn PDF document text
    • https://bojuwidus.weebly.com/uploads/1/3/4/6/134698781/lodofefekudujazo.pdfIn PDF document text
    • https://cdn.sqhk.co/didozakir/iiJ5gfo/nosen.pdfIn PDF document text
    • https://cdn.sqhk.co/ganuniwiku/igGFpuB/nununekelupowapojaxegewi.pdfIn PDF document text
    • https://cdn.sqhk.co/makulowujip/dJRghZ4/watugi.pdfIn PDF document text
    • http://prechambre.xyz/wasitadamlrhpe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vejebuta.rf.gd/huangshan_china_travel_guide.pdfIn PDF document text
    • http://dipijiz.epizy.com/24557858495.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_off0000d391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD391 5900 bytes
SHA-256: 18d1cda41cd1d29f06435c528f5d025505a2aa94ddc70abc0080a365dc40a05a
font_01_sfnt_off0000e7c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C2 10736 bytes
SHA-256: da90b64a2ce0f71b71d9a5b580c163557e1086dad7086d867aaa4901bcfd4c78

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