Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6141fe92b94e47d…

MALICIOUS

PDF

68.6 KB Created: 2022-05-19 23:17:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: cf9dd4322f588678f5f48cf4434baed4 SHA-1: b5e642e67ce55df3d293c51e8006512defbf8f75 SHA-256: b6141fe92b94e47d696017b2f7030171b35ed732041aa558d3256f76a940c629
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9837

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://mifuj.co.za/YmrXLWy8?keyword=fundamentos%20de%20transferencia%20de%20calor%20incropera%20pdf%20online%20gratis%20pdf%20download PDF link annotation
    • http://xn--9d0b102a6wc3y4a.com/sa_upload/userfiles/file/20220429023115.pdfIn PDF document text
    • https://latavulepa.weebly.com/uploads/1/3/4/4/134461708/4652969.pdfIn PDF document text
    • http://yellowstonewildlife.com/wademelewadokujazopa.pdfIn PDF document text
    • http://partynfun.com/kcfinder/upload/files/79855313918.pdfIn PDF document text
    • https://folodevatedox.weebly.com/uploads/1/4/1/2/141278939/2657611.pdfIn PDF document text
    • https://niriretof.weebly.com/uploads/1/3/4/4/134488174/zijugidosomefukipumo.pdfIn PDF document text
    • https://ijmscr.com/ckfinder/userfiles/files/397907538.pdfIn PDF document text
    • https://nasoluludeg.weebly.com/uploads/1/3/4/4/134435301/tidoxabaluvora.pdfIn PDF document text
    • http://oguzlarotomatiksanziman.com/depo/sayfaresim/file/laparezizozazewenorox.pdfIn PDF document text
    • https://xavidupi.weebly.com/uploads/1/3/4/7/134723560/wogotumavewiwulo.pdfIn PDF document text
    • https://xijogokamu.weebly.com/uploads/1/3/4/7/134721509/2277405.pdfIn PDF document text
    • https://xolufoxe.weebly.com/uploads/1/3/4/5/134501271/2396611.pdfIn PDF document text
    • http://brandorbit.in/userfiles/file/88031050703.pdfIn PDF document text
    • https://patokepejiven.weebly.com/uploads/1/3/4/7/134706466/wezowigipafelet.pdfIn PDF document text
    • http://www.startbatteries.gr/ckeditor/ckfinder/userfiles/files/tivurukivezivaregolafolez.pdfIn PDF document text
    • https://nimukebobe.weebly.com/uploads/1/3/4/5/134527887/8d86087d8df.pdfIn PDF document text
    • https://fejamelaluboj.weebly.com/uploads/1/3/4/3/134311679/3025183.pdfIn PDF document text
    • https://setozovijigaze.weebly.com/uploads/1/3/4/3/134383391/4459239.pdfIn PDF document text
    • https://fabezetenonuke.weebly.com/uploads/1/3/4/8/134846610/8f9212894840dc.pdfIn PDF document text
    • https://tutowori.weebly.com/uploads/1/3/5/3/135317166/gufuri_rokenopi_mapoba.pdfIn PDF document text
    • https://g55net.com/webpagebuilder/ckfinder/userfiles/files/gojifadawiwowuvabibujosit.pdfIn PDF document text
    • https://roxoxurapu.weebly.com/uploads/1/3/4/3/134307884/koxegaxedunitav-telubepuvoka-gukililaxom.pdfIn PDF document text
    • https://japarikadag.weebly.com/uploads/1/3/4/1/134108792/ruzugejeze-givug-vetof-zexiwadigotu.pdfIn PDF document text
    • https://giliruba.weebly.com/uploads/1/3/1/4/131483170/babosuz.pdfIn PDF document text
    • https://pafetujesotizi.weebly.com/uploads/1/3/5/3/135348857/xiwoteputuxebux.pdfIn PDF document text
    • https://nonewogigej.weebly.com/uploads/1/3/2/6/132681399/lunamijewidajef.pdfIn PDF document text
    • https://trungtammaychieu.com/ad-min/js/libs/kcfinder/upload/files/9287154318.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_off0000a3b9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000a3b9.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a3b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3B9 11128 bytes
SHA-256: a67ad7c498241cbdb3dcf21195894583b27639c06907cf879773a702ab424c25
font_01_sfnt_off0000bd86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD86 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000d598.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD598 17504 bytes
SHA-256: 45025da2a5019f10ee2801766c95e37ff346e2acd058712a4b2970ff172a5b5b