Malicious PDF — malware analysis report

Static analysis result for SHA-256 674246daeba02212…

MALICIOUS

PDF

86.4 KB Created: 2021-03-28 20:21:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2f57acc5999a9341fe04f766d9f27c5d SHA-1: 4f1e6eca9d86adeb46e96033f30654b8aa62a2dc SHA-256: 674246daeba022121e8db87b75f23f47084c317476b8567a77f9b695d4a12cef
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external URIs, many hosted on disposable domains, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://golowaki.ru/award?keyword=principios+de+asepsia+y+antisepsia+oms+pdf PDF link annotation
    • http://fapseo.ru/90318469404re3g3.pdfIn PDF document text
    • http://silkhfig.bid/unity_of_time_definition_literature7xap5.pdfIn PDF document text
    • http://blu-ital.space/59132247014g2w59.pdfIn PDF document text
    • http://teagreen.space/can_you_work_at_ross_at_14uve3t.pdfIn PDF document text
    • http://inostrana.com/50172736968cq9eo.pdfIn PDF document text
    • http://tiktokhd.design/prsu_b._ed_syllabuslugrl.pdfIn PDF document text
    • http://fitafipos.iblogger.org/where_is_adobe_acrobat_xi_serial_number.pdfIn PDF document text
    • http://mesanezedid.mypressonline.com/garanopasez.pdfIn PDF document text
    • http://wegoluxetas.scienceontheweb.net/apresentao_online.pdfIn PDF document text
    • http://niburufajanuto.sportsontheweb.net/25449663788.pdfIn PDF document text
    • http://tonozezoziw.iblogger.org/30673282014.pdfIn PDF document text
    • http://bizowokare.getenjoyment.net/34277169293.pdfIn PDF document text
    • http://universal-kirov.ru/4966955035cyquw.pdfIn PDF document text
    • http://vupaniseb.iblogger.org/gimejejawezabuwovupirofi.pdfIn PDF document text
    • http://hhizmet.com/pamomoxovjo86.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://aa4a64a1-c69a-4176-9ab9-82648dcabbba.filesusr.com/ugd/70701b_ab9987bc6b164d5ca8434f71c953c581.pdf?index=trueIn PDF document text
    • http://fomupobidep.epizy.com/grid_paper_1cm.pdfIn PDF document text
    • http://kivozusemu.atwebpages.com/zolopitasugawedafu.pdfIn PDF document text
    • http://tofedig.epizy.com/miwavul.pdfIn PDF document text
    • http://palavujat.epizy.com/symbol_latex.pdfIn PDF document text
    • http://dejifiragilu.epizy.com/sentence_combining_worksheet_answers.pdfIn PDF document text
    • https://a5fc3680-5c08-4cda-bd6c-abaa3bdf25bc.filesusr.com/ugd/ea5d7b_ea40212384a74ce289655a3d7cea0c4a.pdf?index=trueIn PDF document text
    • http://nulepavujuzafo.epizy.com/html_to_using_laravel.pdfIn PDF document text
    • http://wikolote.epizy.com/what_is_software_development_services.pdfIn PDF document text
    • https://acbe2b0b-ee64-4eea-b0ce-372b1aa9cc7a.filesusr.com/ugd/4bcc67_63228f794bd04006889df30517ec4846.pdf?index=trueIn PDF document text
    • https://9042e326-c85f-44e6-b9b6-0c206471fdba.filesusr.com/ugd/0d2fda_5167fbaccd754056b92475f96fc74aea.pdf?index=trueIn PDF document text
    • https://4a7d9d2b-1d67-446c-8d6d-bdd3043d1f60.filesusr.com/ugd/c3d078_2e5e7b919c254dd382ff535a03e18b9b.pdf?index=trueIn 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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000104cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104CD 5372 bytes
SHA-256: f0ab14ccb5e9f821be4b3e0b2a2967fff436fc73a0846d6d224010e6501cf9cf
font_01_sfnt_off000116ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116FF 2628 bytes
SHA-256: 85959640c08d7bcb1701dba1fba07c5d73379a255d027c90b5ced51d5eeea2ea
font_02_sfnt_off00012226.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12226 12504 bytes
SHA-256: a4cbff300c724360b158a3e046d40889b77941aad6d0495f0189fe583d14db4c