Malicious PDF — malware analysis report

Static analysis result for SHA-256 09a9a2bbef88be4b…

MALICIOUS

PDF

90.0 KB Created: 2021-03-06 18:26:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 43ad5ffd324573db929be9973bb5b39b SHA-1: 0f1467c5c1369655f9bee34de50bdffcf4dcf50e SHA-256: 09a9a2bbef88be4bc9da31df88b264b6b8ead046da092af39ad311d80665851b
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many pointing to disposable hosting and potentially malicious domains, as indicated by the PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically identified as Pdf.Phishing.Trojan. The embedded URLs and the nature of the link farm suggest an attempt to redirect users to phishing sites or download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://mezovuduw.ru/strik?utm_term=financial+ratio+analysis+project+pdf PDF link annotation
    • https://mufamemibota.weebly.com/uploads/1/3/1/8/131856380/b13244e6173c.pdfIn PDF document text
    • https://gomepenet.weebly.com/uploads/1/3/0/8/130874128/6882392.pdfIn PDF document text
    • https://lokeduvedip.weebly.com/uploads/1/3/4/8/134885922/551bfd6f61.pdfIn PDF document text
    • https://wiwojuzikog.weebly.com/uploads/1/3/6/0/136050554/eda66d.pdfIn PDF document text
    • https://cdn.sqhk.co/nizaveni/1hdiihg/the_ants_go_marching_to_war_original.pdfIn PDF document text
    • https://jovigazever.weebly.com/uploads/1/3/1/6/131637362/sezumusasaxeg.pdfIn PDF document text
    • https://cdn.sqhk.co/dedomafub/1Q17cic/guidehouse_washington_dc_location.pdfIn PDF document text
    • https://cdn.sqhk.co/kigoxeni/ejdy93Y/theme_for_oneplus_x_hd_yaz_l_m.pdfIn PDF document text
    • https://cdn.sqhk.co/sufokorume/hiijjie/64670257956.pdfIn PDF document text
    • https://cdn.sqhk.co/buzaxelubot/6jbdhix/hide_seek_apk_mod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://99442e0c-e188-470f-b1e9-a2082f9e7f28.filesusr.com/ugd/2274a7_336744440d4c46d8a466087096c8242a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/metubevozisul/gowadamede.pdfIn PDF document text
    • https://a98f38e8-5810-4fc9-be6a-c3d78c7c4f9f.filesusr.com/ugd/921909_7f6eba34cd7d4c5cb0cb667cb3fe6fac.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6896f2a-9afc-4ecb-8cd6-f302434277b8/69022096937.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b4e7698-6e0b-41b5-a48f-01cfffb921b0/gakibarig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d5514e4-0878-4d9f-ac1d-186a578cbdac/science_a_closer_look_reading_and_writing_workbook_grade_5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1564e4f-d019-449b-b00d-706c1b0bd638/vosubunoximop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34ab72ef-8146-4603-91ba-6434220e0c82/rokawazawudunizupilogu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cbdf1d78-c4b3-4e16-bcf4-629dd25fbf2c/how_do_you_calculate_probability_and_statistics.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/89403383448.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/axonopus_compressus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33633362-9143-4776-9a1b-a4ae62a3963b/qualitative_research_design_grounded_theory_example.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/758e05e6-d76d-4679-81e1-d9ada64f83a0/tafofezelufitakokox.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_off0001207f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1207F 5284 bytes
SHA-256: 025c7cb7f95bea117affe7ac216e8c6d775355306f1ac06fa49b7b684ca02ddb
font_01_sfnt_off00013296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13296 11276 bytes
SHA-256: d6b2b3e01c5b55260c1f61793080f5b938acf218432b2d9b3a94fd11e18ce91f