Malicious PDF — malware analysis report

Static analysis result for SHA-256 af22f4fb8cb11539…

MALICIOUS

PDF

76.6 KB Created: 2022-04-04 12:21:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: b4094eb94f90424caf29f3aa30e78d94 SHA-1: 431051129e8b9bf204aa41139916f231824f12c3 SHA-256: af22f4fb8cb115391a941ca544d963d6dca93195feead29c9da20ec5567fd8fb
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

Heuristics 7

  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://cafij.co.za/YmrXLWy8?keyword=ge%20cafe%20gas%20range%20specs PDF link annotation
    • https://balabirow.weebly.com/uploads/1/3/4/6/134690292/8421645.pdfIn PDF document text
    • https://gunobapeve.weebly.com/uploads/1/3/4/7/134706327/b4105377.pdfIn PDF document text
    • https://kigokowolabewal.weebly.com/uploads/1/3/4/1/134132594/mezenuwoviwaf.pdfIn PDF document text
    • https://bowixasexagat.weebly.com/uploads/1/3/4/0/134041419/firezu.pdfIn PDF document text
    • https://rujavuxubigiwak.weebly.com/uploads/1/3/4/3/134331492/doxijonuja-xegenevibobevo-zoxopusa-lunepetuv.pdfIn PDF document text
    • https://ludefexidox.weebly.com/uploads/1/3/4/3/134344451/ximap_ligezeguzimukog.pdfIn PDF document text
    • https://razotipelemato.weebly.com/uploads/1/3/0/7/130738732/866d663d9732cb3.pdfIn PDF document text
    • https://nuwudune.weebly.com/uploads/1/3/4/3/134362296/pujiwiko_nizumegugubo.pdfIn PDF document text
    • https://centralcms.coodex.net/galeria/files/funiliwovixumeki.pdfIn PDF document text
    • https://megoximigiwuboz.weebly.com/uploads/1/3/4/5/134579220/1982142.pdfIn PDF document text
    • https://menusopam.weebly.com/uploads/1/3/4/5/134597334/bujix_tilezuke_folaro_zoxevedoxa.pdfIn PDF document text
    • https://molesomux.weebly.com/uploads/1/3/2/6/132681378/5c31f60e.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/c4a18e69f24b8b77e78ff09887de004a/kokoraxalobefiduwewajoxap.pdfIn PDF document text
    • http://www.soletsgo.cz/userfiles/files/xixofuna.pdfIn PDF document text
    • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16248296b3c6f1---fotexijiveweg.pdfIn PDF document text
    • https://fujofalogit.weebly.com/uploads/1/4/1/2/141254385/buwewe-lororesovunevix-wepin-zemonux.pdfIn PDF document text
    • https://guzebiba.weebly.com/uploads/1/3/4/3/134368687/f1292.pdfIn PDF document text
    • https://sibanozaniso.weebly.com/uploads/1/3/4/8/134858677/futonaturegaxer-rorodara-pulizifawasuwi.pdfIn PDF document text
    • https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16200922563797---sedisirozevifegu.pdfIn PDF document text
    • https://jelajumazu.weebly.com/uploads/1/3/4/3/134368400/zusowux.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_off0000c810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC810 17504 bytes
SHA-256: bbdfe738ff6e1f7a9284bf2aff44c8dfb9cc10cc2b8a38b4cb0bb71fd584649e
font_01_sfnt_off0000f5c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5C8 10340 bytes
SHA-256: a16a248147e1129339efd36370fc92a1b5a0e4279e680b8e18594d4ff8ae4906
font_02_sfnt_off00010d3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D3C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1