Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa82781d01591b46…

MALICIOUS

PDF

75.1 KB Created: 2022-04-11 16:38:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 0d6b5366a85cc22b46174296e9952b08 SHA-1: 5a5eb3f8df6669369b6ce3e35e01e3c04074ed75 SHA-256: aa82781d01591b4638e4bcf2f42b793e605c43ec289a7774a00a3db8085dee09
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://wirut.co.za/YmrXLWy8?keyword=what%20are%20chicken%20soup%20for%20the%20soul%20books%20about PDF link annotation
    • https://fasanubuxa.weebly.com/uploads/1/3/4/7/134733786/mimuseb_faxolamevotafes.pdfIn PDF document text
    • http://chafewyuok.handysociality.com/upload/files/94296565135.pdfIn PDF document text
    • http://bcma.com.bd/backend/web/kcfinder/upload/files/kifabememewozepil.pdfIn PDF document text
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1621aed6707e08---33036203210.pdfIn PDF document text
    • https://canyonoaksmtg.com/~duckdi5/canyonoaksmtg.com/content/file/beton.pdfIn PDF document text
    • http://trunghungplastic.com/luutru/files/jejuwuvaro.pdfIn PDF document text
    • https://guclupin.com/calisma2/files/uploads/fevivafupugered.pdfIn PDF document text
    • http://sentai.cc/data/file/20220402_141822_976.pdfIn PDF document text
    • https://plasticosgyc.co/kcfinder/upload/files/22482512331.pdfIn PDF document text
    • http://www.logomarcanet.com/userfiles/file/53419883949.pdfIn PDF document text
    • https://pnvvr.ro/userfiles/file/raritizozuro.pdfIn PDF document text
    • http://pinboulevard.com/file_space/files/44385979662.pdfIn PDF document text
    • https://thebottombillion.org/business_school/uploads/file/dagejeminamize.pdfIn PDF document text
    • https://tommytest.dish1314.com/data/html_editor/files/71086648692.pdfIn PDF document text
    • https://www.yulava.es/js/libraries/ckeditor/kcfinder/upload/files/5697335742.pdfIn PDF document text
    • https://defupodanujazi.weebly.com/uploads/1/3/5/3/135346118/niguwakoboku-runete-bugekuwowudomul.pdfIn PDF document text
    • http://satyamtracparts.com/userfiles/file/38931916712.pdfIn PDF document text
    • http://americansemitruckparts.com/d/files/81641835405.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_off0000c0c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0C9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d8e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8E0 10900 bytes
SHA-256: 041b91e2bc8b627c7c8a5b05c483e29a1f3170d86169bf753525563b4fc90e64
font_02_sfnt_off0000f1da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1DA 17244 bytes
SHA-256: 87868f8de73de42dc48b1097fba132918e808dddf9fc57acd3e0ceb6f37397e5

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