Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd71d2bc52cad84d…

MALICIOUS

PDF

75.0 KB Created: 2022-04-06 09:54:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: cd6daff03d55ac3a7be0ff345a0e7ab7 SHA-1: 21c515b9ae1848e28f8f2015043424180d91b5f5 SHA-256: cd71d2bc52cad84d427b628eedad5ca96f5c1445e22a4f4474d057dfbb72b8e7
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://podar.co.za/YmrXLWy8?keyword=cognitive%20psychology%204th%20edition%20medin PDF link annotation
    • https://wulonuvesiga.weebly.com/uploads/1/3/4/3/134362584/befev-waxoriki-voturil.pdfIn PDF document text
    • https://tamunalu.weebly.com/uploads/1/3/3/9/133999965/fe870c.pdfIn PDF document text
    • https://rewemaxokaw.weebly.com/uploads/1/3/4/7/134748572/lirasavoviru.pdfIn PDF document text
    • https://zobadesozuxuj.weebly.com/uploads/1/3/5/3/135326391/wiwebu_lagokajarelu_sejulorekog_liwamitoril.pdfIn PDF document text
    • http://pop-around.com/file_media/file_image/file/tedirep.pdfIn PDF document text
    • https://shindah.com/images/ckeditor_img/files/judukufusetawebapudav.pdfIn PDF document text
    • https://fuvufuraw.weebly.com/uploads/1/3/4/7/134745886/posabe.pdfIn PDF document text
    • https://vugadeji.weebly.com/uploads/1/3/1/4/131406436/gonewulusabuka-walinebufesinaw-filiwopuvepu-vosotoxamomite.pdfIn PDF document text
    • https://zirubelazuzo.weebly.com/uploads/1/3/4/7/134747961/dozafafata.pdfIn PDF document text
    • https://reribowin.weebly.com/uploads/1/3/4/6/134643330/lodedonubomovad-negologemu.pdfIn PDF document text
    • https://lajawomipeluzo.weebly.com/uploads/1/4/1/3/141339233/4439852c4f45cb.pdfIn PDF document text
    • https://janilunulosuga.weebly.com/uploads/1/3/0/7/130739392/lokoxugobobu_farunaxoku.pdfIn PDF document text
    • https://dapujevubo.weebly.com/uploads/1/3/1/4/131438680/risitewir_puziritigovomib.pdfIn PDF document text
    • https://fovepupaveveri.weebly.com/uploads/1/3/1/3/131384368/36965e.pdfIn PDF document text
    • https://edouardweil.com/userfiles/file/newuwabofi.pdfIn PDF document text
    • https://zegaturivelegob.weebly.com/uploads/1/3/1/4/131437779/zufefe-jijozofukaped-xitowu.pdfIn PDF document text
    • https://kueapem.com/contents/files/webiw.pdfIn PDF document text
    • https://www.tratedu.net/ssss2018/assets/143ad273/ckfinder/core/connector/php/upload/userfiles/files/6816efba20086c20eb539137e175ba27.pdfIn PDF document text
    • https://solorebigaz.weebly.com/uploads/1/3/4/7/134707119/1fdadbaaa2ea96.pdfIn PDF document text
    • https://pekireraseg.weebly.com/uploads/1/3/4/7/134720831/jizuxuv.pdfIn PDF document text
    • https://lugomovumejaran.weebly.com/uploads/1/4/1/2/141256975/tonolemugirodatiji.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_off0000c1ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1EA 10988 bytes
SHA-256: 9acf9a2301427e792c078a7078914f1a73b62be2630ba6f47c1e43bdc30ffe2b
font_01_sfnt_off0000db1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB1D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f32f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF32F 16612 bytes
SHA-256: 2fbe3158e2aa4dd3362c56d9eb16c08a773213b6ce91a6dca39bcbab6485cf9d

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