Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9d18d22e2b0a47a…

MALICIOUS

PDF

84.8 KB Created: 2021-03-15 12:26:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: aa4a33de98a29ad29b5bf2a197698709 SHA-1: 7c666d621a3c4644341032908820c2f19da56fae SHA-256: e9d18d22e2b0a47a6f39461c8a2cab0e62557717fb87c684462f1bd626af730f
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, and is flagged by heuristics as a link farm designed for SEO manipulation. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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 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://kuzutuzo.ru/strik?utm_term=hp+z440+motherboard+type PDF link annotation
    • http://diporesorojina.scienceontheweb.net/87083846691.pdfIn PDF document text
    • https://vuxukavimegi.weebly.com/uploads/1/3/5/3/135328550/refituruwogonar-lufazumuwurar-zovenokipi-gojekolozizuxus.pdfIn PDF document text
    • https://cdn.sqhk.co/baruduwege/jdDjgmn/fruit_cutting_game_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/xajamenujo/d1Chejj/us_army_stickman_rope_hero.pdfIn PDF document text
    • http://tedurelaseji.mygamesonline.org/82139360554.pdfIn PDF document text
    • http://rejorevubirobu.sportsontheweb.net/gizamiroxozaled.pdfIn PDF document text
    • https://cdn.sqhk.co/mekibekowufe/a4jiQPu/wovonoxibufelegawebex.pdfIn PDF document text
    • https://cdn.sqhk.co/mafowixodi/eeWU7HL/18721571487.pdfIn PDF document text
    • http://samafutanub.mypressonline.com/97348830235.pdfIn PDF document text
    • http://vodabutopidaru.getenjoyment.net/bugaboo_frog_seat_cover.pdfIn PDF document text
    • https://cdn.sqhk.co/jawuraxexije/DHgfkYC/daxerejotodawolimenod.pdfIn PDF document text
    • https://fugunukotuji.weebly.com/uploads/1/3/4/5/134589730/b97842714a9a490.pdfIn PDF document text
    • http://kagaromorin.medianewsonline.com/ruzofofewexopaxidofuzegop.pdfIn PDF document text
    • https://radixukawatezod.weebly.com/uploads/1/3/4/6/134645496/3062287.pdfIn PDF document text
    • https://degovemidim.weebly.com/uploads/1/3/4/0/134017519/nozeziliwade.pdfIn PDF document text
    • http://vuvulusigi.scienceontheweb.net/rumoki.pdfIn PDF document text
    • http://dazenad.iblogger.org/dejar.pdfIn PDF document text
    • https://zajinepimasi.weebly.com/uploads/1/3/2/8/132815118/7f1148e7d0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef3dd753-1b64-40f5-b464-0cb7ee46e3ae/80430714475.pdfIn PDF document text
    • http://xenezipulugiji.atwebpages.com/excel_vba_copy_range_of_cells_into_array.pdfIn PDF document text
    • http://kasegame.rf.gd/interjection_sentences_worksheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aaf1076e-5d4a-4156-b10a-f1d923a09ce7/40204432646.pdfIn PDF document text
    • http://mopafanimuwez.epizy.com/82375147326.pdfIn PDF document text
    • http://kibululugavi.epizy.com/ammonification_and_nitrification.pdfIn PDF document text
    • http://vilepobafomunow.atwebpages.com/char_broil_infrared_grill_ribs_recipe.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_off000101b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101B4 5472 bytes
SHA-256: 7d1b98a67ccffd2d4bd2433de52cfc46d34a3c63f8a24a4e7f533c8a21241a4f
font_01_sfnt_off0001142d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1142D 16708 bytes
SHA-256: c670848b3fcac2d52ad02c9e668e6bc9113f42d2012595d2897cdbee18ca33d6