Malicious PDF — malware analysis report

Static analysis result for SHA-256 80b9b593e4ab606f…

MALICIOUS

PDF

75.8 KB Created: 2021-01-27 01:05:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 3bd3fc0902de1b9623e861f36948eb75 SHA-1: 312b5a4654583a2201dfdaa2752915c8fb1393f5 SHA-256: 80b9b593e4ab606f85b58cef020f5f9de5f803807a5c3f0ce73056b523b847c3
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://jottigo.ru/123?utm_term=roadworthy+centre+near+me PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4467318/normal_5ffd4dc441989.pdfIn PDF document text
    • http://nimojojisox.22web.org/90043649141.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375705/normal_5fcf1ec2b6e47.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413475/normal_5ffb7e2595f2c.pdfIn PDF document text
    • https://jinezivatu.weebly.com/uploads/1/3/4/6/134687025/bc3e02.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415077/normal_6001c903746ba.pdfIn PDF document text
    • http://skameyki.club/central_florida_expressway_authority_pay_tollmy4af.pdfIn PDF document text
    • http://gravkamen.ru/color_shift_wrapcb1jf.pdfIn PDF document text
    • https://kivalake.weebly.com/uploads/1/3/4/8/134885121/zulobowuv.pdfIn PDF document text
    • http://zhigina.ru/service_tool_v3400e58po.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485440/normal_60070da983d40.pdfIn PDF document text
    • http://topstudy.fun/wonadarukeftl30.pdfIn PDF document text
    • http://hotita.fun/tower_defense_simulator_wiki_zombieslcelr.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mizozibobekujul.rf.gd/10588928897.pdfIn PDF document text
    • http://dejanubotikepiw.rf.gd/c._t._m_full_form.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_off0000ebd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBD8 5172 bytes
SHA-256: f873e2fd2f89c6b9e1bee4d8bae0ea7ab7b866daf27e5caaf021dc7cb1f92337
font_01_sfnt_off0000fd63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD63 10868 bytes
SHA-256: aff5a421b1153c706724eb3b983bd372c20e29b724c5946832f56a63e8e66b5b