Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b69ac25dd7aab1…

MALICIOUS

PDF

78.6 KB Created: 2022-04-25 07:43:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: be54564a69baa8eab488d2eb3465acea SHA-1: 8b3f21a289d2f54af980c7f004fe8f428c141b38 SHA-256: 88b69ac25dd7aab13652afe1c9b0b37b641ece31145257d41d9bf04673454c0a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://tevav.co.za/YmrXLWy8?keyword=what%20are%20some%20examples%20of%20biomass PDF link annotation
    • http://bikesport-krnov.cz/www/js/kcfinder/upload/files/54615956422.pdfIn PDF document text
    • https://nijodumedogale.weebly.com/uploads/1/3/6/0/136082157/433a206260a.pdfIn PDF document text
    • https://jotekonybakterium.hu/userfiles/files/18472512818.pdfIn PDF document text
    • https://dancleland.com/img/upload/file/xewakulo.pdfIn PDF document text
    • https://sufogewanogona.weebly.com/uploads/1/3/1/0/131070160/zirogaravu.pdfIn PDF document text
    • https://befadileniralan.weebly.com/uploads/1/3/6/0/136082268/rosinis_razeno_xezizukovelowid_welerisironezel.pdfIn PDF document text
    • http://navicom.net.vn/ckeditor/kcfinder/upload/files/37291275384.pdfIn PDF document text
    • http://7treehotel.com/userfiles/file/dirabebafevomiva.pdfIn PDF document text
    • https://rozolabo.weebly.com/uploads/1/3/0/8/130814594/4495762.pdfIn PDF document text
    • http://safrano.pl/userfiles/file/52853288847.pdfIn PDF document text
    • http://dobre-jaja.com/Upload/file/jimexab.pdfIn PDF document text
    • http://playos.net/data/playos.net/uploadfiles/file/78707690895.pdfIn PDF document text
    • https://jolaxedepodoz.weebly.com/uploads/1/3/4/7/134708869/1425096.pdfIn PDF document text
    • https://kerozusokenizil.weebly.com/uploads/1/3/1/3/131383247/tutetabimone.pdfIn PDF document text
    • https://natanashoes.com/kingkong/userfiles/files/vexolegafunaru.pdfIn PDF document text
    • http://econrobot.com/app/webroot/userfiles/files/20220416_105531.pdfIn PDF document text
    • https://specialgarden.ro/userfiles/file/datifowobavo.pdfIn PDF document text
    • http://www.aqua-systems.com.tw/ckeditor/kcfinder/upload/files/fonivetixuzesirepababe.pdfIn PDF document text
    • https://potegixizaw.weebly.com/uploads/1/3/4/5/134588155/kopovasar_dujojo.pdfIn PDF document text
    • https://numozekede.weebly.com/uploads/1/3/7/5/137505847/fafalenenitowupunan.pdfIn PDF document text
    • https://motefeka.weebly.com/uploads/1/3/4/1/134108707/fexozufe.pdfIn PDF document text
    • https://xosesobo.weebly.com/uploads/1/3/4/6/134697532/sifisepeweraw.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1625b72127b237---zetizesizavuvegow.pdfIn PDF document text
    • http://sloba.org/media/uploads/files/jagibemakemojerefejilojud.pdfIn PDF document text
    • http://hengelo.scholenkeuze.nl/UserFiles/files/ralupepojalubujezo.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_off0000cf7a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000cf7a.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF7A 10752 bytes
SHA-256: 17db7bd708be0f3c5e0237ca0174ccacd4e64b9d2c7e21a78e602a4d63243c21
font_01_sfnt_off0000e803.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE803 16948 bytes
SHA-256: 0cd5d784a3ef800e144cefaa1030cbf330b5b09f9446fb20bc0e8f459ab7f821
font_02_sfnt_off0001144f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1144F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1