Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa88386679a0a00c…

MALICIOUS

PDF

71.6 KB Created: 2022-05-10 05:08:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: aa0b5b4db63237868cee4fc9216975ad SHA-1: 1588c41911d187dfa5a43474d1961ef6759104d5 SHA-256: aa88386679a0a00ccad9e67bd7f46166576aa14cc1b17a0aa4797e208fbb2340
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://lazav.co.za/YmrXLWy8?keyword=borrowing%20costs%20ias%2023%20pdf%20download%20full PDF link annotation
    • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16279a1d427a48---nodopevalefetivusoredofe.pdfIn PDF document text
    • https://moxuronanupew.weebly.com/uploads/1/3/4/5/134597487/miluwiferibobut.pdfIn PDF document text
    • https://nanivenom.weebly.com/uploads/1/3/0/9/130969334/xakobizaxokukomasad.pdfIn PDF document text
    • http://pwmtqatar.net/userfiles/file/36505381824.pdfIn PDF document text
    • https://hoalavender.net/upload/files/70928147871.pdfIn PDF document text
    • https://ibbfvhn.org/recursos/kcfinder/upload/files/surumabiwororiruwes.pdfIn PDF document text
    • http://vetcasatenovo.it/userfiles/files/9738362105.pdfIn PDF document text
    • http://janeblondsalon.cz/files/upload/files/59968267421.pdfIn PDF document text
    • http://1855-4080.com/userfiles/file/jiworak.pdfIn PDF document text
    • https://p-yanagase.gorakuou.net/blog/upimg/26623191070.pdfIn PDF document text
    • https://ponuxarazuzega.weebly.com/uploads/1/3/5/3/135328107/7372344.pdfIn PDF document text
    • https://vaitinhdien.com/app/webroot/upload/files/liboxedipaligado.pdfIn PDF document text
    • http://qunjl.com/userfiles/files/riluwen.pdfIn PDF document text
    • http://phanphoiongnhuahoasen.vn/upload/files/sososivafetozow.pdfIn PDF document text
    • http://93564497.com/userfiles/kitogurelixajadobevor.pdfIn PDF document text
    • http://www.prodomasa.com/ckfinder/userfiles/files/sonozelapip.pdfIn PDF document text
    • https://ganuzuvotaju.weebly.com/uploads/1/3/5/3/135304652/03f30ff63923.pdfIn PDF document text
    • http://radiopoint.cz/userfiles/file/zuvafivotol.pdfIn PDF document text
    • https://agrando.cz/files/file/8035137786.pdfIn PDF document text
    • https://nozesebekujizaj.weebly.com/uploads/1/3/4/6/134698307/palifesesubodirugud.pdfIn PDF document text
    • http://wx-test.com/upload/ckimg/files/202204082221045103.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b3fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3FA 16144 bytes
SHA-256: 0e3395297ab7aa3ff8736f5daa10b582230f189d57ce5e99ce250ef2d58f4fe5
font_01_sfnt_off0000dde4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDE4 11196 bytes
SHA-256: 9c283c597fa07de9833215848bf240c5d54c605173a59466176a323efe77a01e
font_02_sfnt_off0000f838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF838 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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