Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ead2ac0a4889c0c…

MALICIOUS

PDF

81.4 KB Created: 2021-03-18 13:46:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c63e4b0905de914eb349bad5e1e46bb3 SHA-1: 175853a87df564b6a64b677a944cd04d6c337fd9 SHA-256: 2ead2ac0a4889c0c81228d26d96ad71f172901c7f6a0e152d23c9aa57b09f401
186 Risk Score

Malware Insights

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

The PDF contains numerous external links, many hosted on disposable domains, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs point towards an attempt to redirect users to malicious or spam content, likely for SEO manipulation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • 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 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://lozipotod.ru/123?utm_term=letter+format+in+english+for+leave PDF link annotation
    • https://vasetovomakoti.weebly.com/uploads/1/3/2/7/132741031/gogiwugufudifizasez.pdfIn PDF document text
    • https://kuwobudub.weebly.com/uploads/1/3/4/5/134587752/mitejiduvinozifo.pdfIn PDF document text
    • https://wesoxuzepa.weebly.com/uploads/1/3/4/3/134372623/3dcdc4e299952c1.pdfIn PDF document text
    • https://fitulepam.weebly.com/uploads/1/3/0/8/130874207/6619719.pdfIn PDF document text
    • http://vajukadezazi.getenjoyment.net/jane_eyre_bildungsroman.pdfIn PDF document text
    • https://cdn.sqhk.co/difixoruze/hgh85ge/basketball_3_point_line_australia.pdfIn PDF document text
    • http://wulixiv.sportsontheweb.net/31959530508.pdfIn PDF document text
    • https://cdn.sqhk.co/rolileduvof/idgi6ih/adidas_nmd_r1_white_and_orange.pdfIn PDF document text
    • http://dovulup.iblogger.org/53996473943.pdfIn PDF document text
    • http://jujasoje.iblogger.org/2958381525.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sufitinefa.epizy.com/how_to_reset_unifi_ap_to_factory_default.pdfIn PDF document text
    • https://e0ff2378-281a-4ea3-95ae-419c526fdc99.filesusr.com/ugd/0baf77_69cd51098f4e43e69e280d6b0b47a9ff.pdf?index=trueIn PDF document text
    • http://sixeres.epizy.com/wakag.pdfIn PDF document text
    • http://wunilos.epizy.com/factoring_polynomials_examples.pdfIn PDF document text
    • http://gakilasefit.myartsonline.com/40712653068.pdfIn PDF document text
    • http://robabaxagolelez.rf.gd/bosch_washer_dryer_wvg30461gb_manual.pdfIn PDF document text
    • http://dekagozavamog.epizy.com/59501670394.pdfIn PDF document text
    • http://pidusagi.atwebpages.com/catalogo_novo_hinode_2020.pdfIn PDF document text
    • http://moxododokojuke.epizy.com/wifevoxisi.pdfIn PDF document text
    • http://digutir.rf.gd/before_sunrise_1995_free_movie.pdfIn PDF document text
    • https://f2fffe36-c7b4-4b88-9608-518dc6c14750.filesusr.com/ugd/950b2a_cb75ad717d2e44e192b794b2ff9acb48.pdf?index=trueIn PDF document text
    • https://3633ae4e-9acc-45df-885e-1bfa1481cb44.filesusr.com/ugd/e73054_2ea01b569dea4a81809a15888d275247.pdf?index=trueIn PDF document text
    • http://pewulalabes.epizy.com/bus_architecture_of_8085_microprocessor.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000101ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101FF 5180 bytes
SHA-256: 725f4f6052ebc8225c013b19e9889e33c27475a04907aae8e8eef759649a6eec
font_01_sfnt_off00011381.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11381 10648 bytes
SHA-256: 53e80b3e53bf1bc439b97598ae4a63379e0fbbc6ed7d043a9b2626c16e3fb650