Malicious PDF — malware analysis report

Static analysis result for SHA-256 93cac88e81c893b9…

MALICIOUS

PDF

70.3 KB Created: 2022-04-03 00:56:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-13
MD5: eee57101d204d4bdc81f4cedde766355 SHA-1: 3f302ff677381b23470312081394ce21c2faa64a SHA-256: 93cac88e81c893b9fcbd8d9dcfb10e0193f3cbc124c7898a030cd20117e3e748
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9878

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
  • 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 http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/0f5c3e5ce79ef5c1b5f24277da96c485/tuxagig.pdf In PDF document text
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/1622911a5f09ae---65180111044.pdfIn PDF document text
    • http://rspon.pl/images/wyswig_images/file/40491436153.pdfIn PDF document text
    • https://www.uralhelicom.com/frontend/web/js/kcfinder/upload/files/tasirif.pdfIn PDF document text
    • http://sergeybazarov.ru/file/70901277424.pdfIn PDF document text
    • http://softtox.com/new/userfiles/file/429733265.pdfIn PDF document text
    • http://strandedtattoo.info/file/degurowefosojaxudewewa.pdfIn PDF document text
    • https://bahamianbrewery.com/ckfinder/userfiles/files/jubijivikobugepidu.pdfIn PDF document text
    • https://astdubai.co/userfiles/files/jifukazodulopemitotine.pdfIn PDF document text
    • https://martonelektro.hu/files/file/fezatizabi.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/162170f12a812f---30660536166.pdfIn PDF document text
    • http://www.hausman.eu/images/wyswig_images/file/66236662844.pdfIn PDF document text
    • http://www.prunay-en-yvelines.fr/ckfinder/userfiles/files/nibezabizesizofuluf.pdfIn PDF document text
    • https://thermocalnepal.ramjanki.com/ckeditor/kcfinder/upload/files/78018301973.pdfIn PDF document text
    • http://bvsaigonbinhduong.com/uploads/files/nisup.pdfIn PDF document text
    • https://prolinenergy.com/Admin/plugins/ckeditor/kcfinder/upload/files/jozefekipowizujibidasazux.pdfIn PDF document text
    • https://www.trungtammaychieu.com/ad-min/js/libs/kcfinder/upload/files/nigituteno.pdfIn PDF document text
    • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/0de2371a97b6752a4c9d4d3ad3114293/45845468624.pdfIn PDF document text
    • https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/cdf7f6f2215bc632fdced723e80304b1/ratutakabejexinivukamos.pdfIn PDF document text
    • http://greenld.com/userfiles/9532136985.pdfIn PDF document text
    • https://placute-frana-dispaco.dispaco.ro/userfiles/file/jifexevetebijaboguxegemuk.pdfIn PDF document text
    • https://propactionvehiclesuk.tv/userfiles/files/36910192973.pdfIn PDF document text
    • https://czus-lukasa.sk/userfiles/file/gimonosivunivuwixetin.pdfIn PDF document text
    • http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/16234d471d0529---94631953024.pdfIn PDF document text
    • http://heonlab.hu/uploads/files/87663615575.pdfIn PDF document text
    • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/0d9bv0js4pr31fh0ntc5s0qob5/xolaluwebujuguribezavaso.pdfIn PDF document text
    • https://newtrichur.com/userfiles/file/napelajusu.pdfIn PDF document text
    • https://htapigroup3.com/contents/files/falokuposetet.pdfIn PDF document text
    • https://dcoderesearch.com/uploads/31308282815.pdfIn PDF document text
    • http://gro-felix.si/uploads/zisububevirogalesitiba.pdfIn PDF document text
    • http://austral-immo.com/userfiles/files/5672708187.pdfIn PDF document text
    • https://yubit.co.za/XSRYdR1H?utm_term=we+got+married+joonmi+ep+22+eng+subPDF link annotation
    • 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_off0000adcf.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000adcf.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000adcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADCF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c5e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5E1 16660 bytes
SHA-256: 41a8cf004cc46de5395d24de32a90dd1ac718e17dc59739cd4a39906b4adce2d
font_02_sfnt_off0000f0d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0D2 11172 bytes
SHA-256: 6534d1b5727fd96ff734fed5312efa9fd638b6b5513045b9f69735cc94e13eff