Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fe53eee42fb5c77…

MALICIOUS

PDF

70.3 KB Created: 2021-02-26 23:54:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a30aad5d338d56fa79441b5fe116b080 SHA-1: 696f871f7c6a28a1d50971431a981790a9578d82 SHA-256: 6fe53eee42fb5c77596dfb8d884e0682302edde5efe7870e514cf5f8ece760fc
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://midufefew.ru/award?keyword=lg+service+centre+refrigerator+in+cbd+belapur PDF link annotation
    • https://vipeketiduwe.weebly.com/uploads/1/3/1/6/131636725/sigitekuriforaxufo.pdfIn PDF document text
    • http://loduwij.scienceontheweb.net/words_their_way_assessment_paper.pdfIn PDF document text
    • http://givepamodugag.22web.org/minutes_of_meeting_template_ms_word.pdfIn PDF document text
    • https://kekoluborefox.weebly.com/uploads/1/3/5/3/135327445/4397806.pdfIn PDF document text
    • http://wijufonexomi.22web.org/barcelona_map.pdfIn PDF document text
    • https://bodonoweti.weebly.com/uploads/1/3/1/8/131856710/61ebc7e2b43856e.pdfIn PDF document text
    • http://bagerisevi.scienceontheweb.net/rojupiguxixapenona.pdfIn PDF document text
    • http://lidobexi.22web.org/95758396422.pdfIn PDF document text
    • http://begiguvok.iblogger.org/la_metamorfosis_franz_kafka_frases.pdfIn PDF document text
    • https://pavibizad.weebly.com/uploads/1/3/0/7/130740264/5d36ce18112.pdfIn PDF document text
    • http://dolupusam.22web.org/redizizixemarovamanawe.pdfIn PDF document text
    • https://monivewuvafa.weebly.com/uploads/1/3/4/0/134096064/4196876.pdfIn PDF document text
    • https://pufoputinagof.weebly.com/uploads/1/3/4/2/134234879/8e7554ed5.pdfIn PDF document text
    • https://felabare.weebly.com/uploads/1/3/0/7/130776415/keruxemanevewode.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rowesotinik.rf.gd/86048413873.pdfIn PDF document text
    • http://dexupanuwobazab.rf.gd/47709707448.pdfIn PDF document text
    • http://milodip.epizy.com/brachistochrone_problem.pdfIn PDF document text
    • http://zezajezo.epizy.com/69517043186.pdfIn PDF document text
    • http://wixufoliwesomep.epizy.com/crystal_reports_asp._net_c_mysql.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_off0000d5e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5E3 5464 bytes
SHA-256: 9d8962f56b866853f4403dfca09f53e6b93f1bf780a61c931555cfd75dd78d54
font_01_sfnt_off0000e896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE896 10296 bytes
SHA-256: 1b8ff629b87c0c9e576d2f6a1c1edd39974b543bac74112dc25332cece3d8eb9