Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e34daeb203d3857…

MALICIOUS

PDF

64.7 KB Created: 2021-02-11 19:06:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 697f13093dcab9cb5fde2e593acf58b0 SHA-1: c7322802f573eebf90ed300653c1941421f0d0bf SHA-256: 4e34daeb203d38572ebed1fe11f9cff85ebac9c7169bbaf80b17967c6ab14f95
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://jacksth.ru/wix?keyword=32.1+the+skeletal+system+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4495271/normal_601b557f657c9.pdfIn PDF document text
    • http://lefefegibilapo.22web.org/jisad.pdfIn PDF document text
    • https://zaxixeresez.weebly.com/uploads/1/3/1/8/131871416/jilup.pdfIn PDF document text
    • https://pemilixip.weebly.com/uploads/1/3/5/3/135330450/rijidowepus.pdfIn PDF document text
    • https://votorivoxezi.weebly.com/uploads/1/3/4/0/134095847/kewedegexufafo.pdfIn PDF document text
    • https://cdn.sqhk.co/birofinud/VjjMXLq/wijijolepodupo.pdfIn PDF document text
    • https://cdn.sqhk.co/detaludolef/hNii2gi/hair_salon_games_hair_styles_and_hairdressers.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447251/normal_5fdbdfe03efc5.pdfIn PDF document text
    • https://cdn.sqhk.co/mofosalamo/PYTjd8a/farmer_sim_2018_mod_apk_revdl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462341/normal_5fcaeb3136474.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383929/normal_60170dd8293d6.pdfIn PDF document text
    • https://zuzumesagodufen.weebly.com/uploads/1/3/2/6/132695194/toguvetapuse-rakiwepoluxu-jigifijemiwet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472506/normal_5ffdf4bf1b67b.pdfIn PDF document text
    • https://cdn.sqhk.co/sazobenapur/ifKb2jj/suwesokodudif.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pewizofiwerobep.rf.gd/seximujosevabixavifig.pdfIn PDF document text
    • http://fadakivok.rf.gd/sight_words_writing_worksheets.pdfIn PDF document text
    • http://sifebina.epizy.com/36465364152.pdfIn PDF document text
    • http://savekuf.rf.gd/ligifanawogumurobo.pdfIn PDF document text
    • http://kagabefusexem.epizy.com/tixofovizuso.pdfIn PDF document text
    • http://kinadawefenipe.rf.gd/abrahaminte_santhathikal_full_movie_free_tamilrockers.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_off0000c1f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1F5 5468 bytes
SHA-256: 69ffc870616a4d305e42a64f3d897269c8592d1888dc493b725b593e62855502
font_01_sfnt_off0000d482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD482 9688 bytes
SHA-256: fdfefdc07f9c454c0d21c3874b9adb02e672082f8229b62902e9a6999ea79110