Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d73830d7fd01f8c…

MALICIOUS

PDF

84.6 KB Created: 2021-03-02 14:53:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 787c265aa120b78123a2031ed07e0203 SHA-1: 8955b2b6c4a78c16813ce4cb3b0a05f021e6c4de SHA-256: 1d73830d7fd01f8cedcfd9e1b1b18e2d408423a9f911693019d1e8f4465e3cf5
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://mezovuduw.ru/wb?keyword=kenmore%20795%20ice%20maker PDF link annotation
    • http://xitabijasava.getenjoyment.net/94654405332.pdfIn PDF document text
    • https://cdn.sqhk.co/zibepidok/WRBghR1/vaziwexe.pdfIn PDF document text
    • https://molobaguzali.weebly.com/uploads/1/3/0/7/130739923/4501104.pdfIn PDF document text
    • http://esmoney.site/langstroth_beehive_frame_plansuttke.pdfIn PDF document text
    • https://jojapewabivato.weebly.com/uploads/1/3/1/3/131379205/9848076.pdfIn PDF document text
    • https://nakubinigana.weebly.com/uploads/1/3/1/3/131379761/c07dcdb7f82f4.pdfIn PDF document text
    • https://nevajuto.weebly.com/uploads/1/3/2/6/132695651/275b19f88f313e6.pdfIn PDF document text
    • http://walawabijuver.22web.org/vuxunotisuba.pdfIn PDF document text
    • https://cdn.sqhk.co/vedasukuki/hgiegc2/77985460840.pdfIn PDF document text
    • https://cdn.sqhk.co/fopajuxalaso/cNgcggh/a_prayer_of_gratitude_for_god_s_blessings.pdfIn PDF document text
    • http://xuwuvewisin.mypressonline.com/xozomunofafum.pdfIn PDF document text
    • http://natnat.fun/6133768820022vsq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/badoo_premium_gratis_2018_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/gmail_free_for_macbook_pro.pdfIn PDF document text
    • http://fofifalog.rf.gd/sipegotanujunokuxixifuk.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_off00010e9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E9C 5128 bytes
SHA-256: b6f7f6d2b3f52799eec65c7b1cb57f2549296e8ff5cbfb17ddb743d082ba3db5
font_01_sfnt_off00012009.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12009 11076 bytes
SHA-256: 14d4570eaf5a7a0af56e8c36328323a188fa3b097f1dfae935c4aef24edc5668