Malicious PDF — malware analysis report

Static analysis result for SHA-256 94ddb2482e335874…

MALICIOUS

PDF

161.8 KB Created: 2021-03-17 02:20:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5beaa94ddf22f86308bc453539697c1f SHA-1: 70ea058a0fcb9e62e87887caebaeeae82030d086 SHA-256: 94ddb2482e335874b099f0f00ff26064398f0576a63e40a8ac56e78c2159a823
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of multiple external URIs, including one on disposable hosting, combined with the 'Fake invoice / payment lure' heuristic, suggests a phishing or credential harvesting attempt. The document body, though heavily obfuscated, contains metadata related to 'wkhtmltopdf' and a date, but no clear textual lure. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://leonvi.ru/wix?keyword=fallout+wanderers+edition+book+2 PDF link annotation
    • https://cdn.sqhk.co/popenewosaso/BqEjggj/screaming_goat_meme_sound_button.pdfIn PDF document text
    • http://instas.site/657093957065dbug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379723/normal_5fdc396da1e69.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485578/normal_60479f0dafe9c.pdfIn PDF document text
    • https://cdn.sqhk.co/xubipoxeguza/aADhjtp/bandpass_filter_matlab_2012.pdfIn PDF document text
    • http://verifiedbadge-lnstagram.com/presupuesto_de_capital_definicion_y_caracteristicasmf3jz.pdfIn PDF document text
    • http://lanasobewusek.22web.org/dupegumalevizotofiseroliw.pdfIn PDF document text
    • https://cdn.sqhk.co/besimiwi/dihjfid/6131958482.pdfIn PDF document text
    • http://robertferrell.net/96113769740ywsgs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nogobixa.epizy.com/payment_receipt_lic.pdfIn PDF document text
    • https://e8dc5420-792a-4861-90db-09cfc8d8a7d1.filesusr.com/ugd/1378f5_4e657b699c2049d996b9793e3495367e.pdf?index=trueIn PDF document text
    • https://a21f0d7d-5fe0-4a99-a381-3b18266e0880.filesusr.com/ugd/6c313a_20e4b38f77334b70b8a253e01e1b9018.pdf?index=trueIn PDF document text
    • https://52a1af19-6946-4c37-aba6-ab00a30e4874.filesusr.com/ugd/5dc3ca_1206ba89d6da4d04a2b331fe553b490b.pdf?index=trueIn PDF document text
    • https://8e12fe21-47c1-448c-af9e-883e7c84523b.filesusr.com/ugd/52ac5e_e1b3e00004b24948a85a420e7542ea3f.pdf?index=trueIn PDF document text
    • https://f803bf1b-e1c2-47f6-a41f-c9785c88fbd4.filesusr.com/ugd/bf07b1_1ece893c6bff4cb28239320c24bd9f64.pdf?index=trueIn PDF document text
    • http://vopepogam.rf.gd/70889614640.pdfIn PDF document text
    • http://xuwuxubemepimox.rf.gd/57313847031.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

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023e19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23E19 5200 bytes
SHA-256: 568f2a62330a48e5950233ec8d5d8eed54a758c2032f429305621390dab1dc6e
font_01_sfnt_off00024fec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24FEC 11632 bytes
SHA-256: 55330d621f0b00045270945270afcbfa0aea7312453a17ad46ed50ac6d65d110

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