Malicious PDF — malware analysis report

Static analysis result for SHA-256 4251cc20e94afb77…

MALICIOUS

PDF

77.4 KB Created: 2022-04-22 13:47:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: c2da989554fadd7ba4c2b16125a1ee43 SHA-1: fa7b950c59e1ac6e048ce618d5fc3918020965d6 SHA-256: 4251cc20e94afb777c4e1ce91a2c4641c17e6518248f4214f0a4916efc39b75c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://lazav.co.za/YmrXLWy8?keyword=pelicula%20el%20nombre%20de%20la%20rosa%20en%20espa%C3%B1ol%20completa%20online PDF link annotation
    • https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/e84fde1138281fb1e3eeb16349099025/zikotorinitod.pdfIn PDF document text
    • https://mekogupo.weebly.com/uploads/1/4/1/2/141217790/nafaz.pdfIn PDF document text
    • https://lexajedulife.weebly.com/uploads/1/3/5/9/135993044/6898283.pdfIn PDF document text
    • http://trumoi-khutrung.com/upload/files/5928563124.pdfIn PDF document text
    • http://chugguwang.com/files/fckeditor/file/68742396451.pdfIn PDF document text
    • https://wavikifetin.weebly.com/uploads/1/3/4/9/134901048/laxibidogoji.pdfIn PDF document text
    • https://negiwonilelif.weebly.com/uploads/1/3/4/5/134583179/gopodaladinewek-xewaboluzepi-zapigiromonel.pdfIn PDF document text
    • https://alwillislifecenter.org/ckfinder/userfiles/files/84178597108.pdfIn PDF document text
    • http://maimungkorn.com/UserFiles/file/52571869648.pdfIn PDF document text
    • https://tomadukego.weebly.com/uploads/1/3/6/0/136083679/91d562a45a1dc.pdfIn PDF document text
    • https://mukojemugasab.weebly.com/uploads/1/3/5/3/135314074/9df32.pdfIn PDF document text
    • https://charlesstreetvideo.com/userfiles/file/mogujarujobemutixegipan.pdfIn PDF document text
    • http://1careglobal.com/upload/files/sexezogitotetugiboreliz.pdfIn PDF document text
    • https://mavieromantique.com/images/files/46728530328.pdfIn PDF document text
    • https://gawuwusirijer.weebly.com/uploads/1/3/4/1/134108670/dewuge_zususepamupovuz_vixenilum_luzesog.pdfIn PDF document text
    • https://ganalazukomej.weebly.com/uploads/1/3/4/7/134714395/2078690.pdfIn PDF document text
    • http://daiichihr.com/uploads/news_file/12407843972.pdfIn PDF document text
    • https://tovoginimu.weebly.com/uploads/1/3/4/3/134379987/xusik_sofebomab_zujavosikelud.pdfIn PDF document text
    • https://sokizotisananig.weebly.com/uploads/1/4/1/3/141392714/1661459.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC458 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000dc6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC6A 18140 bytes
SHA-256: d004af4ae4a36b353e63e11a0b141f2d8884ad19711f1eee568ddafb653b989e
font_02_sfnt_off00010aac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AAC 11120 bytes
SHA-256: e6b1166e8318c56b4d821606e4257fb2e4073d911287a8c32f6ce1f5a2bb3146

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