Malicious PDF — malware analysis report

Static analysis result for SHA-256 b73ec3af39312df1…

MALICIOUS

PDF

75.0 KB Created: 2021-03-01 14:03:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 46284e6ab622d2591563b4e67ba3dff1 SHA-1: c7b98f46ac336bb3a5c9e29451ef822762be3cb6 SHA-256: b73ec3af39312df12dbff0545157c1cd15151aa3cebd3484c3e8252d35fa9071
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://jumiwimov.ru/award?keyword=free+crochet+cable+stitch+afghan+patterns PDF link annotation
    • http://zathkatow.xyz/ultralight_backpacking_checklist34d9f.pdfIn PDF document text
    • http://rigoditibalun.mywebcommunity.org/dupapidakomelax.pdfIn PDF document text
    • http://tulavesew.getenjoyment.net/dedemejukepefid.pdfIn PDF document text
    • http://kmplitka.shop/decimal_place_value_worksheets_5th_grade_with_answerspkdew.pdfIn PDF document text
    • https://veduwasa.weebly.com/uploads/1/3/1/6/131637496/pejoraguzizabufosule.pdfIn PDF document text
    • http://supportcopyright.net/samsung_dv328aew_xaa_manualvafa3.pdfIn PDF document text
    • http://xedeporib.medianewsonline.com/52970738857.pdfIn PDF document text
    • https://bumarotijij.weebly.com/uploads/1/3/4/6/134688095/fabba22.pdfIn PDF document text
    • https://tuxuboninivufos.weebly.com/uploads/1/3/4/4/134478209/74167d66cc1d.pdfIn PDF document text
    • http://richteam.site/armory_v._delamirie9nllf.pdfIn PDF document text
    • http://bimiwefumukiv.22web.org/finaxumezakatukone.pdfIn PDF document text
    • https://gipazekafasulal.weebly.com/uploads/1/3/4/6/134600210/1384032.pdfIn PDF document text
    • https://guzesunidami.weebly.com/uploads/1/3/0/8/130873942/xipemufivotefotati.pdfIn PDF document text
    • http://spencermcman.us/fijevasogivusogirewebegci9q.pdfIn PDF document text
    • https://sasominafa.weebly.com/uploads/1/3/4/3/134362810/526891397db.pdfIn PDF document text
    • http://mazafaka69pussy.online/ps_plus_vita_games_listotv5s.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://guxozuzemonixe.epizy.com/cid_moosa_songs_free.pdfIn PDF document text
    • http://bitenozof.atwebpages.com/21861000620.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_off0000e71b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE71B 5372 bytes
SHA-256: 663ab6e1c77f27b103f2ba968ab88f6cfddf2d370b3a3d22659ff3db7df2e374
font_01_sfnt_off0000f95e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF95E 10920 bytes
SHA-256: 3fd232dbe72f60c80af2e0910d0abf8d21fdff93cf2edd9d1faa4c100373a543