Malicious PDF — malware analysis report

Static analysis result for SHA-256 875f9a52af810fdd…

MALICIOUS

PDF

78.1 KB Created: 2022-04-09 03:46:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: b1be7779437ff8abe7e8cbfdfa49f716 SHA-1: b4f3aebcab084a15c5892a14cc213d59eb3b0155 SHA-256: 875f9a52af810fdde870105896ddad6dd5db8cbb3e96504ced84c5bbf7003630
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

Heuristics 6

  • 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 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://rixemeja.weebly.com/uploads/1/3/4/7/134711448/5367823.pdf In PDF document text
    • https://nodifolosorak.weebly.com/uploads/1/3/4/7/134758422/e58f877aa1cc4bb.pdfIn PDF document text
    • https://lusimijibujadex.weebly.com/uploads/1/3/4/6/134677052/2401356.pdfIn PDF document text
    • http://daoltrading.com/userData/board/file/22006662420.pdfIn PDF document text
    • http://rjbmachinery.com/d/files/5267064082.pdfIn PDF document text
    • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/c2491ef10b6ca436abf404b963618655/91404561700.pdfIn PDF document text
    • https://zazozoke.weebly.com/uploads/1/3/0/7/130776388/fcd7ac.pdfIn PDF document text
    • http://zonatourism.com/media/ck/files/jodavotadabe.pdfIn PDF document text
    • https://juwibaviwexufeb.weebly.com/uploads/1/3/0/7/130739975/sivim-kaguz-fivumuterobogix-jizirugefawes.pdfIn PDF document text
    • https://medgal.pl/admin/ckfinder/userfiles/files/kaxijajuzuf.pdfIn PDF document text
    • https://jotogenawe.weebly.com/uploads/1/3/1/4/131406354/88dcd9b213d.pdfIn PDF document text
    • https://sidunaxegizu.weebly.com/uploads/1/3/0/7/130776644/lopaxit-vafubitirapimu-sazopifufaz-woxezefawifat.pdfIn PDF document text
    • http://gsprojekt.eu/userfiles/files/zojijalo.pdfIn PDF document text
    • http://uktohabbarijamalta.com/files/file/salakumabojivotexaw.pdfIn PDF document text
    • https://digakope.weebly.com/uploads/1/3/5/9/135974251/dimebilikunaburifate.pdfIn PDF document text
    • http://oprandi.it/userfiles/files/duridejoniwojelapi.pdfIn PDF document text
    • https://zipegudedore.weebly.com/uploads/1/3/1/6/131636753/bogotovirituzamafipi.pdfIn PDF document text
    • https://dazujaxika.weebly.com/uploads/1/3/1/4/131437396/154132d3f7cbce.pdfIn PDF document text
    • https://knoxvilleremembers.com/media/57036650906.pdfIn PDF document text
    • http://99hospitalitygroup.com/ckfinder/userfiles/files/30986286418.pdfIn PDF document text
    • https://libertavoyages.com/kcfinder/upload/files/wuluxaw.pdfIn PDF document text
    • https://fokuxadeji.weebly.com/uploads/1/3/4/5/134585395/7328769.pdfIn PDF document text
    • https://punetitudide.weebly.com/uploads/1/4/1/2/141293242/e3f7e1.pdfIn PDF document text
    • https://wurotifaji.weebly.com/uploads/1/3/4/3/134315076/9c793e3a333f7df.pdfIn PDF document text
    • https://harkakotony.hu/UserFiles/file/17274782084.pdfIn PDF document text
    • https://bejogazapusa.weebly.com/uploads/1/3/4/5/134528063/16a7f5392bc2.pdfIn PDF document text
    • https://wirut.co.za/YmrXLWy8?keyword=por%20que%20estudiar%20administracion%20de%20empresas%20en%20colombiaPDF link annotation
    • https://supportsurgical.com.br/assets/kcfinder/upload/files/lobaru.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000c881.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c881.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c881.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC881 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e098.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE098 11060 bytes
SHA-256: f631656d54e9cea215404ba1ecfb27da65de52026ec2a320ee6cbe1e3715d1ae
font_02_sfnt_off0000f9e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9E6 17932 bytes
SHA-256: b826fdbfe7610ca59dfd055262b037b4adb2b0522be7650216b290454f1b2f31