Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa87d98000ff993c…

MALICIOUS

PDF

109.8 KB Created: 2022-04-17 14:46:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 000a77256d756c3caec8690fd3527cbe SHA-1: 5dd4255994522f347e66e6fba06a49f204dc4120 SHA-256: aa87d98000ff993c2024f0c2db457c8daea262550c57997dd975318f58b3c483
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9477

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://yoyep.co.za/YmrXLWy8?keyword=how%20to%20reset%20linksys%20re3000w%20range%20extender PDF link annotation
    • http://kondicionery-fryazino.ru/upload_picture/file/69517088095.pdfIn PDF document text
    • http://ranahytta.com/ckfinder/userfiles/files/87925792854.pdfIn PDF document text
    • http://marcobernini.it/userfiles/files/desowipewa.pdfIn PDF document text
    • https://staffinghub.complifly.com/ckeditor/kcfinder/upload/files/57107697225.pdfIn PDF document text
    • https://northcity.rs/slike/files/22413388326.pdfIn PDF document text
    • http://yuha.be/_files/file/kuvusera.pdfIn PDF document text
    • http://wordtmann.beckbauer.eu/ckfinder/userfiles/files/64668586528.pdfIn PDF document text
    • http://livermore.com/wysiwygfiles/file/fagovuni.pdfIn PDF document text
    • https://mehreganimaging.ir/images/upload/files/82234091635.pdfIn PDF document text
    • https://xevexafof.weebly.com/uploads/1/4/1/2/141260484/7c145b9bd8dec0.pdfIn PDF document text
    • https://bipovubukixepev.weebly.com/uploads/1/3/2/7/132740720/9761132.pdfIn PDF document text
    • https://gifoxulexup.weebly.com/uploads/1/3/4/8/134865115/3e43b16.pdfIn PDF document text
    • https://www.tocbirsen.org.tr/ckfinder/userfiles/files/20351693749.pdfIn PDF document text
    • https://zogudoweno.weebly.com/uploads/1/3/1/6/131637773/b5c3e2346b9b197.pdfIn PDF document text
    • https://xovadodelemowuz.weebly.com/uploads/1/3/1/3/131383330/8f931395e1.pdfIn PDF document text
    • https://alinassociates.com/assets/kcfinder/upload/files/14500427880.pdfIn PDF document text
    • https://kemigaguni.weebly.com/uploads/1/3/1/0/131070112/96c18c9bd0.pdfIn PDF document text
    • http://kukubara.com/zdjecia/file/wasivimidogakipolifalat.pdfIn PDF document text
    • https://nukoxola.weebly.com/uploads/1/3/1/3/131380146/tabozibatul.pdfIn PDF document text
    • https://pixavegabub.weebly.com/uploads/1/3/5/3/135307945/0061957cc72.pdfIn PDF document text
    • https://namonivet.weebly.com/uploads/1/3/4/4/134493383/lumikax-pewano-gewazazinekiz.pdfIn PDF document text
    • https://bevabuje.weebly.com/uploads/1/3/4/8/134897483/wemaz.pdfIn PDF document text
    • https://zexavoxiwufezir.weebly.com/uploads/1/3/5/3/135350245/tozasikeruse-nirizi.pdfIn PDF document text
    • https://gratuit.kidilangues.fr/js/kcfinder/upload/files/vuwarajasenu.pdfIn PDF document text
    • https://negofugino.weebly.com/uploads/1/3/4/5/134529575/rerosokesusagelofeku.pdfIn PDF document text
    • https://xumotisububilup.weebly.com/uploads/1/3/4/5/134591263/dekopovidajisanebu.pdfIn PDF document text
    • https://libertyrealestate.in/ckfinder/userfiles/files/90205021980.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013acc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13ACC 2220 bytes
SHA-256: c99d436dc798cdb5b8467acf1b49dac99b1e7a5f8acb05650c454d7eb90f6326
font_01_sfnt_off000144af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144AF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00015cc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15CC1 17716 bytes
SHA-256: 039353b3fe82512b032408c8a7be0a56626966b1f308cda8f629c9f0d4c326c5
font_03_sfnt_off00018b7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18B7B 11104 bytes
SHA-256: ee34f5e83e5c5263241eca8f4bb532556605f60619eaac6522b714dcfe067fda