Malicious PDF — malware analysis report

Static analysis result for SHA-256 99237806b84439b5…

MALICIOUS

PDF

73.2 KB Created: 2021-03-05 09:05:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e9c1a1df48666d125dfe5536c59070e8 SHA-1: 08b945648864b4b69eddfa104ea2c2c6bac3eabb SHA-256: 99237806b84439b5a02f779338d63ca0ce95910ebcaced579a176e97c2088230
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gimoguvi.ru/wix?keyword=philips+7+dual+screen+portable+dvd+player+with+games PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416675/normal_6032fde28f426.pdfIn PDF document text
    • https://cdn.sqhk.co/rixutixim/ZwidbnS/ghost_hunters_hulu.pdfIn PDF document text
    • https://cdn.sqhk.co/rabovafom/Njhjrjc/22406595585.pdfIn PDF document text
    • https://cdn.sqhk.co/bujasugawo/eheBSid/lowe_s_stockton_california_trinity_parkway.pdfIn PDF document text
    • http://zekabivalejasaj.22web.org/48113121166.pdfIn PDF document text
    • http://zalavsky.ru/ferrocene_polar_or_nonpolarcx25h.pdfIn PDF document text
    • https://cdn.sqhk.co/modonasuje/fjjajZi/zutikixujajojogat.pdfIn PDF document text
    • https://cdn.sqhk.co/xelajura/ghfifio/tarabile.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374980/normal_5ffc668983cf3.pdfIn PDF document text
    • http://ekzo-fruit.ru/guideline_value_for_amman_sannathi_madurai14wa7.pdfIn PDF document text
    • https://cdn.sqhk.co/fozuwasixeja/AHEVehh/3691304034.pdfIn PDF document text
    • https://cdn.sqhk.co/fewoxenovof/iiigiiH/35137722043.pdfIn PDF document text
    • http://promoocaoameericanas.com/como_baixar_do_passei_direto_no_pc5udd9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426557/normal_602721dfcb074.pdfIn PDF document text
    • http://amsidgi.xyz/horizon_blue_color_kiat1orq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462341/normal_5fceb02bdf996.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://5926284e-b61c-4ed0-95e5-27b9feedd2c3.filesusr.com/ugd/50c35f_d3a7c21f4e08469fb5f0361ec6fed1ca.pdf?index=trueIn PDF document text
    • https://ed59cdd8-0d75-4634-8bb2-7afdb9da103e.filesusr.com/ugd/9cb112_0bc2e84773124b07985dec50e79ec714.pdf?index=trueIn PDF document text
    • http://vinusefasa.rf.gd/what_size_chain_for_husqvarna_450_rancher.pdfIn PDF document text
    • http://wipovevoliku.epizy.com/atmega16_microcontroller_ppt.pdfIn PDF document text
    • https://305aa2e3-e1d2-413d-aa2e-f1bb83d03ded.filesusr.com/ugd/92ee2b_04c1a31b33414787897d04861e641bf6.pdf?index=trueIn 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_off0000df9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF9E 5960 bytes
SHA-256: fd96c29771d71df31ebe6be1a4e0564657c53158f6a960aa96011f84eb98ad2b
font_01_sfnt_off0000f3db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3DB 10256 bytes
SHA-256: 9bcd1a0a7aa55011b7ba0d3b64772fd3e51d599e59d4ab51a77e3b1f974577cc

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