Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c42c49df1823739…

MALICIOUS

PDF

75.3 KB Created: 2021-02-28 09:52:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 08bbdec6e0c2e4c60aab337be7ad6d27 SHA-1: 53ab5b78451f7ce406bd22507bff0101a53d4198 SHA-256: 2c42c49df182373936edd83ae2135b55c65a632e15ccb5ca16255bb6870c9b04
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://mezovuduw.ru/123?utm_term=white+washed+wood+effect+vinyl+flooring PDF link annotation
    • https://nemabofafuz.weebly.com/uploads/1/3/5/3/135389169/a397816aaaba75.pdfIn PDF document text
    • https://renobikedasel.weebly.com/uploads/1/3/4/8/134897329/kelofesabuka.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375340/normal_60048fc93a0d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405930/normal_5fe8fbae92ef1.pdfIn PDF document text
    • http://tulomodev.getenjoyment.net/8465322276.pdfIn PDF document text
    • https://zajuzuvo.weebly.com/uploads/1/3/4/4/134474050/josolif.pdfIn PDF document text
    • https://lurufabufukigo.weebly.com/uploads/1/3/1/4/131407807/5418572.pdfIn PDF document text
    • https://mivagadak.weebly.com/uploads/1/3/4/5/134599435/4120490.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366031/normal_5ffc4a42a44ab.pdfIn PDF document text
    • http://openplafond.xyz/does_red_cross_do_cpr_classesv7wn2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451737/normal_6000510145f71.pdfIn PDF document text
    • http://mirror-x.org/26780637883xqw1u.pdfIn PDF document text
    • https://telisawe.weebly.com/uploads/1/3/4/4/134466193/6675526.pdfIn PDF document text
    • http://galubiwigo.iblogger.org/92103964849.pdfIn PDF document text
    • https://zokevuwokonumez.weebly.com/uploads/1/3/4/6/134682223/fukatadukoz-bexasabiso-fogapak-vezolisuguz.pdfIn PDF document text
    • http://findssldz.xyz/mainstays_student_desk_instruction_manual7d5kl.pdfIn PDF document text
    • http://lexibanoma.iblogger.org/zaremadewukibigib.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://luvoxijamubisur.rf.gd/26078781250.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_off0000e94e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE94E 5552 bytes
SHA-256: 32ad48ecd5d8cf45c6ce59dfb936fa69ddb7f16cefd38df71164266909f1e587
font_01_sfnt_off0000fc4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC4D 10408 bytes
SHA-256: f94bb47fc2ba566f345b73a3d6beb62dab5723ffbdb675c5bca1f17230343639

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