Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa87c8f234778d9a…

MALICIOUS

PDF

76.2 KB Created: 2022-04-21 02:44:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: 07b40afc39b8ef196c6e541917f04193 SHA-1: 2dd1d8eb5df58d9873e3d5280df7471de0205eab SHA-256: aa87c8f234778d9a81ea91197c664f74614c44a412ec98c144ac97545dcd95d4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://lovig.co.za/YmrXLWy8?keyword=how%20to%20draw%20stuff%20easy%20step%20by%20step PDF link annotation
    • https://vinibakuru.weebly.com/uploads/1/3/4/3/134310820/daeb38.pdfIn PDF document text
    • https://lufodeku.weebly.com/uploads/1/3/4/5/134586195/3410705.pdfIn PDF document text
    • https://vigaziwow.weebly.com/uploads/1/3/4/3/134322068/vaniruligofekobasip.pdfIn PDF document text
    • https://vozuviwugil.weebly.com/uploads/1/3/2/6/132681927/8037209.pdfIn PDF document text
    • https://vutuwibomakupir.weebly.com/uploads/1/3/2/7/132740747/powerivaroxotejewuka.pdfIn PDF document text
    • http://forensique.biz/app/webroot/kcfinder/upload/files/79564581500.pdfIn PDF document text
    • http://mea-travel.pl/userfiles/file/xulumogiwirazaxupuvel.pdfIn PDF document text
    • https://nuzixusimupe.weebly.com/uploads/1/3/4/3/134306281/b957271d74a7.pdfIn PDF document text
    • https://limakeluror.weebly.com/uploads/1/3/4/6/134657352/boman_konilijujokove_vuzofuk_dogutalelonari.pdfIn PDF document text
    • https://vujerige.weebly.com/uploads/1/3/4/4/134467486/0b3c14fb7cfaa.pdfIn PDF document text
    • https://gokavebaraxev.weebly.com/uploads/1/3/5/3/135309677/vadumuvejavizisu.pdfIn PDF document text
    • https://ralawuxageg.weebly.com/uploads/1/3/4/3/134319431/tedobimupe_lutavim.pdfIn PDF document text
    • https://wolifejigejut.weebly.com/uploads/1/3/7/5/137512537/8743971.pdfIn PDF document text
    • https://dalosetog.weebly.com/uploads/1/3/1/4/131412235/ac704db9d03.pdfIn PDF document text
    • https://xokewetabido.weebly.com/uploads/1/3/1/8/131857041/3ef62afb.pdfIn PDF document text
    • https://danevetiwa.weebly.com/uploads/1/3/4/6/134600357/eb54ad7c0b7.pdfIn PDF document text
    • https://getotegosuri.weebly.com/uploads/1/4/1/2/141291728/vovupex.pdfIn PDF document text
    • https://duzufeto.weebly.com/uploads/1/3/4/7/134734580/3670ee217f4e11.pdfIn PDF document text
    • https://pukuxenusafo.weebly.com/uploads/1/3/4/7/134711282/gutejiguk.pdfIn PDF document text
    • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621fca1d25527---48181021097.pdfIn PDF document text
    • https://farisogu.weebly.com/uploads/1/3/4/3/134307724/ca40c64.pdfIn PDF document text
    • http://rent2day.ca/ci2/userfiles/files/27197466561.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_off0000c4cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4CF 16784 bytes
SHA-256: b812127d3e96bd7f679abecc30080110822dc5a267ecf41e79138b81d860030a
font_01_sfnt_off0000f052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF052 10680 bytes
SHA-256: a4476ae7b22c3a007fce6aace85606f1da9bf346127d44a9c6dab75fe7fe1c15
font_02_sfnt_off000108cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108CB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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