Malicious PDF — malware analysis report

Static analysis result for SHA-256 5af79b87633eb388…

MALICIOUS

PDF

73.5 KB Created: 2021-03-01 18:20:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6b5a6809cce8059000a2bae2c0cbec8a SHA-1: 220e0fd3679fd7bf17b18a55f625cf2b724d806f SHA-256: 5af79b87633eb388b651e165aac38ab18d6ecfa55aa9e742cb7a593098d9504d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://resalured.ru/award?keyword=how+to+configure+samsung+dvr+for+remote+viewing PDF link annotation
    • http://zagozogenef.sportsontheweb.net/html_tags_for_indenting_text.pdfIn PDF document text
    • https://cdn.sqhk.co/leporolino/eLgjxCX/imagine_dragons_demons_letra_traducao.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367286/normal_6003c70116c5e.pdfIn PDF document text
    • http://lotibamuzuti.scienceontheweb.net/36583379130.pdfIn PDF document text
    • https://cdn.sqhk.co/gixekoji/ER1ia7I/flights_to_florida_from_detroit_spirit.pdfIn PDF document text
    • https://cdn.sqhk.co/jigugabopu/TurwheI/24428406839.pdfIn PDF document text
    • https://cdn.sqhk.co/mubikidom/ieLb7ig/52377547335.pdfIn PDF document text
    • https://cdn.sqhk.co/kiribikiv/hajfBds/digdeep_image_recovery_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/jotenitix/ipF95gi/68963313920.pdfIn PDF document text
    • http://lobabinuladeri.medianewsonline.com/used_garmin_rino_650_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/kuxaroposa/giUhcxB/powerbass_asa_1500._1.pdfIn PDF document text
    • https://cdn.sqhk.co/legesizas/gNKjhey/dictatorial_meaning_in_malayalam.pdfIn PDF document text
    • http://xilenemivagola.mywebcommunity.org/how_to_write_quotes_in_ap_style.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/ronatiduzoxij/natepozuzilesesubodeke.pdfIn PDF document text
    • https://s3.amazonaws.com/rumezo/british_american_tobacco_bangladesh_annual_report.pdfIn PDF document text
    • http://jadigilotuziwir.rf.gd/vitusasibotoxuwezagudilar.pdfIn PDF document text
    • http://nibemodida.myartsonline.com/97538255888.pdfIn PDF document text
    • https://s3.amazonaws.com/gogunabones/26345541944.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_off0000e452.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE452 5424 bytes
SHA-256: 2d2529697618a99549f1fa63ccb88032b6220d96c92445283f2f83c0eb73c68b
font_01_sfnt_off0000f6ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6CA 9920 bytes
SHA-256: c13226ac4dc816ef0f2c6bcd162e4295c7fe41c7215237c9db23ce0ab448de0a