Malicious PDF — malware analysis report

Static analysis result for SHA-256 14286fef2b32e670…

MALICIOUS

PDF

67.1 KB Created: 2021-03-04 23:42:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e3fdccd17957b4f31b069af94a37e300 SHA-1: 2e1a3a0dde042ba60a5291012f4b9f39e6d400ba SHA-256: 14286fef2b32e67064b1c014661c9027f35bc3ecc5825ae1e33a55990769fcce
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jacksth.ru/wix?keyword=union+county+yellow+jackets+basketball PDF link annotation
    • https://vaputonusodi.weebly.com/uploads/1/3/4/4/134493057/b6adee.pdfIn PDF document text
    • https://fowemofuf.weebly.com/uploads/1/3/1/3/131379389/1076474.pdfIn PDF document text
    • https://subijiderekura.weebly.com/uploads/1/3/4/6/134616270/9201550.pdfIn PDF document text
    • https://suveruwifofe.weebly.com/uploads/1/3/1/3/131380558/liboredofolepol.pdfIn PDF document text
    • http://murunabo.iblogger.org/xikane.pdfIn PDF document text
    • https://joguxakiwemov.weebly.com/uploads/1/3/4/7/134707067/808526.pdfIn PDF document text
    • http://ritixabig.iblogger.org/butterball_turkey_fryer_xxl_manual.pdfIn PDF document text
    • http://kozevoviwepok.iblogger.org/xunin.pdfIn PDF document text
    • https://megevoweroke.weebly.com/uploads/1/3/5/3/135351245/nojasi.pdfIn PDF document text
    • https://jetezoxow.weebly.com/uploads/1/3/1/3/131379231/ae33e11c.pdfIn PDF document text
    • http://kipoxepufe.iblogger.org/sinugezudavaviwi.pdfIn PDF document text
    • https://cdn.sqhk.co/getabemuto/hgyhjii/lefosupamugukozuw.pdfIn PDF document text
    • https://cdn.sqhk.co/xeduwukaxusa/qjbAV2g/project_management_certification_course_austin.pdfIn PDF document text
    • https://vofirojaj.weebly.com/uploads/1/3/1/6/131637635/nafozenisafeverotega.pdfIn PDF document text
    • http://kudopifupelixi.22web.org/95481445528.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zideniniwos.epizy.com/graphical_method_of_adding_vectors_worksheet.pdfIn PDF document text
    • http://xuzatazuji.epizy.com/29532010127.pdfIn PDF document text
    • http://godavuvexo.epizy.com/kuguza.pdfIn PDF document text
    • http://gifixutazopoja.epizy.com/72948397425.pdfIn PDF document text
    • http://namidonom.epizy.com/rafetefidukakejitebuzizal.pdfIn PDF document text
    • http://xozelabudizi.epizy.com/my_talking_angela_free_hack.pdfIn PDF document text
    • http://dikekonigexixa.epizy.com/standard_sheetrock_screw_size.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_off0000ca3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA3B 5160 bytes
SHA-256: e2c8a046c240cb900c279c6f4ccbaeaf8da49abb2a28bf00f4f4bcde8cb85cfc
font_01_sfnt_off0000dbfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBFD 10184 bytes
SHA-256: d6aaa33fd4fdeb3845c6b2f5d4826e5ef343ea44325205e2af96df62cdc0d7ae

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