Malicious PDF / .VIR — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
  PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
• ClickFix social engineering attack high SE_CLICKFIX
  Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
• 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://metud.brittanygroundhouse.com/20877434299.pdf In PDF document text

  • https://vulokut.peykweb.com/66603383947.pdfIn PDF document text
  • https://rodewanux.mctreadiness.com/risezimezebiwu.pdfIn PDF document text
  • https://pifij.chaosdev.org/kosemiguvojuv.pdfIn PDF document text
  • https://dagosasa.peykweb.com/96046119492.pdfIn PDF document text
  • https://lamulogezijod.haviol.co.za/379073387639697183?vibujuximizefarebirevaxutuwipiwaduduzokinotajuwekudesolovilugo=wusorefexovikolapirejedulujemofovuvimapinabuvinezinurexutofamemumafirunosaxuvewozonaxexodafenesujukilokexofewexixajubumugazivufexuzinupakuwifixukojegebemadamaribafokatimopovawesetomaxumufebobajavexazibofek&utm_kwd=hp+printer+won%27t+print+from+internet&tikumepurevajakofejejixikuvukakuxeruwavubisulokixodupusakugedolusivazulotokoni=tinapogaselodudamelinibifisimosikitetaxaxelazipuvedadunevazosetopepilomoputexezifolitafabikevojezimarasojikijalazopowomededuwonoxanabikufIn PDF document text
  • https://lamulogezijod.haviol.co.za/379073387639697183?vibujuximizefarebirevaxutuwipiwaduduzokinotajuwekudesolovilugo=wusorefexovikolapirejedulujemofovuvimapinabuvinezinurexutofamemumafirunosaxuvewozonaxexodafenesujukilokexofewexixajubumugazivufexuzinupakuwifixukojegebemadamaribafokatimopovawesetomaxPDF link annotation
  • https://lamulogezijod.haviol.co.za/379073387639697183?vibujuximizefarebirevaxutuwipiwaduduzokinotajuwekudesolovilugo=wusorefexovikolapirejedulujemofovuvimapinabuvinezinurexutofamemumafirunosaxuvewozonaxexodafenesujukilokexofewexixajubumugazivufexuzinupakuwifixukojegebemadamaribafokatimopovawesetomaxumufebobajavexazibofek&utm_kwd=hp+printer+won%27t+print+from+internet&tikumepurevajakofejejixikuvukakuxeruwavubisulokixodupusakugedolusivazulotokoni=tinapogaselodudamelinibifisimosikitetaxaxelazipuvedPDF link annotation
  • http://wenq.org/In extracted file (font_00_sfnt_off00043beb.bin)
  • https://uploads-ssl.webflow.com/64eddd955cc39e56b0385d9a/6548a2ad7d76af5bc7aff9d4_liwasapikixawegevijidurip.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://nmr.mgh.harvard.edu/~fangq/In extracted file (font_00_sfnt_off00043beb.bin)
  • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_00_sfnt_off00043beb.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_01_sfnt_off00044605.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_01_sfnt_off00044605.bin)

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