Malicious PDF — malware analysis report

Static analysis result for SHA-256 73ebb49b42d98158…

MALICIOUS

PDF

72.2 KB Created: 2021-03-01 15:06:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1c2ba832f482d99e34858dbf200c7426 SHA-1: b548ab2d94fb614a6ff869e85b634d88a92a3c33 SHA-256: 73ebb49b42d98158c341f4f41dfbd6993b20b84a922a545a61fbdbae5651b054
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/award?keyword=from+the+mixed+up+files+of+mrs+basil+movie+trailer PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4459170/normal_5ff605c9da763.pdfIn PDF document text
    • http://xawamiwupajev.mygamesonline.org/gadavexupagore.pdfIn PDF document text
    • https://cdn.sqhk.co/lomasamube/dnuwXie/66958758733.pdfIn PDF document text
    • https://cdn.sqhk.co/logubaxe/iiahcOj/jodifikivizojutigesi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456121/normal_5febd9bc08b4b.pdfIn PDF document text
    • http://tedurelaseji.mygamesonline.org/washington_state_high_school_basketball_stats.pdfIn PDF document text
    • http://vanimerukaguto.scienceontheweb.net/59966249198.pdfIn PDF document text
    • http://moxegelubopidi.sportsontheweb.net/thesaurus_of_scales_and_melodic_patterns_for_bass.pdfIn PDF document text
    • https://wefojomoki.weebly.com/uploads/1/3/5/3/135389947/bazavebaredide-tirefavoje-vezivuj-nemivasewamoluk.pdfIn PDF document text
    • https://romidemifavev.weebly.com/uploads/1/3/1/8/131857114/tejatenetabo.pdfIn PDF document text
    • https://sodolujakuxef.weebly.com/uploads/1/3/1/3/131398606/belomagufajewiwe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403940/normal_602f4407c0e44.pdfIn PDF document text
    • https://kukurako.weebly.com/uploads/1/3/5/3/135321284/rugurojedonomefi.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/semuxemakaw/goxugafawudaj.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/2005_nissan_pathfinder_transmission_issue.pdfIn PDF document text
    • http://bajekixizosi.myartsonline.com/what_is_a_feature_story_in_agile.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_off0000dc6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC6B 5504 bytes
SHA-256: 57da4efe93937ee13ee37aad11f46733c349d80ede60adcfd482d43fdbe92f7c
font_01_sfnt_off0000eefb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEFB 10724 bytes
SHA-256: 9894f9d8b66dd836647e6e4b8231055114c4d2d06d2fba26752c36dc1b149a67