Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b681f246ca0690d…

MALICIOUS

PDF

97.0 KB Created: 2022-03-31 16:33:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 647ff4b26be8fcd126844609b46ff2bf SHA-1: c23c094e28185430a57aa2afb110313ebe44dcb9 SHA-256: 2b681f246ca0690dd838b1b55d442b87cd1067db1b7d0b6378df64dc58dbc044
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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=what%20is%20project%20based%20learning PDF link annotation
    • https://waragorejitise.weebly.com/uploads/1/3/0/8/130813548/fiwoliti_davidesokula_ponawex.pdfIn PDF document text
    • https://montferri.com/admin/js/plugins/kcfinder/upload/files/vejekibivunowafi.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16205c440d58a5---79712846696.pdfIn PDF document text
    • https://etevent.itweald.com/uploads/files/623a2b1a30265.pdfIn PDF document text
    • https://rinducm1.com/contents/files/77624563073.pdfIn PDF document text
    • http://hrjok.com/uploadfile/file/90346826824.pdfIn PDF document text
    • http://conf.uml2.ru/kcfinder/upload/files/minejibuvurejila.pdfIn PDF document text
    • http://minhquoc.vn/ckfinder/userfiles/files/93444546121.pdfIn PDF document text
    • https://rioclaro.com.co/kcfinder/upload/files/zuzimedidabixolop.pdfIn PDF document text
    • https://darimigavibibej.weebly.com/uploads/1/3/3/9/133997658/3089019.pdfIn PDF document text
    • https://kolukofutire.weebly.com/uploads/1/3/0/7/130740340/tipup.pdfIn PDF document text
    • https://tamukatiraf.weebly.com/uploads/1/3/4/7/134766395/sorokawizuw.pdfIn PDF document text
    • https://nepajomawowezuw.weebly.com/uploads/1/3/4/4/134462508/39831b45.pdfIn PDF document text
    • https://pukukadusese.weebly.com/uploads/1/3/4/6/134666137/werunotinep.pdfIn PDF document text
    • http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1622d7caf0f2a0---79016832645.pdfIn PDF document text
    • https://loffoxfitness.mvwebsolution.com/userfiles/files/84635647878.pdfIn PDF document text
    • https://rezukozivir.weebly.com/uploads/1/3/4/6/134631959/7824658.pdfIn PDF document text
    • https://pidofuvu.weebly.com/uploads/1/3/0/7/130739764/7232087.pdfIn PDF document text
    • https://fuwipinax.weebly.com/uploads/1/3/4/0/134016709/gogolakubuxilakov.pdfIn PDF document text
    • http://artin-intranet.com/ckupload/files/guvikobamajav.pdfIn PDF document text
    • https://sifapovidajep.weebly.com/uploads/1/3/0/7/130738911/vililogonet-sejedubowik.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_off00011714.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11714 17456 bytes
SHA-256: 3d882e473ae09b9057d11906b97c62e01b03b54f43cb54fd766944407a111135
font_01_sfnt_off000144ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144AE 11056 bytes
SHA-256: 733fd5c494ff57c9216eee8a378ad6f9b349c3759eb60a08b512b2be3c58ce90
font_02_sfnt_off00015de8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15DE8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1