Malicious PDF — malware analysis report

Static analysis result for SHA-256 941e59e50b8375a1…

MALICIOUS

PDF

136.5 KB Created: 2022-04-15 23:35:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: daa44a7057546d9c96df5c8a85f883a3 SHA-1: e762459ff5e8277e518d562256565bb3ffcd6726 SHA-256: 941e59e50b8375a1f486312e8256c6c0fbc69e4442ce2f23274971ade1c63e62
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded JavaScript and a large number of external links, indicating it is likely a phishing lure or a downloader for further malicious content. The embedded JavaScript and the extensive link farm suggest an attempt to redirect users to malicious sites. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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://podar.co.za/YmrXLWy8?keyword=what%20are%20the%207%20extra%20books%20in%20the%20catholic%20bible%20called PDF link annotation
    • http://mayfairplace50.com/kcfinder/upload/files/salovoderuf.pdfIn PDF document text
    • https://lemoguvan.weebly.com/uploads/1/3/7/5/137501156/dovejajujokilu-mefuvivarel-jopevo.pdfIn PDF document text
    • http://mountainsidecamp.com/upload/files/biwumu.pdfIn PDF document text
    • https://xapovakugad.weebly.com/uploads/1/3/5/3/135393008/992f144.pdfIn PDF document text
    • https://gupijevud.weebly.com/uploads/1/3/1/4/131407369/nuxoduv.pdfIn PDF document text
    • https://www.agro-zavod.ru/app/webroot/js/ckfinder/userfiles/files/wunejulivigis.pdfIn PDF document text
    • http://omgmediatank.com/userfiles/files/28417296019.pdfIn PDF document text
    • https://zuzilumapodebaj.weebly.com/uploads/1/3/1/3/131382406/8d7e91.pdfIn PDF document text
    • http://nm-union.ru/ckfinder/userfiles/files/93225755859.pdfIn PDF document text
    • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/31f71a930d391c5469f2dd236104c4a0/mitojazujafa.pdfIn PDF document text
    • https://wesifepanegu.weebly.com/uploads/1/3/4/3/134337407/lefonokaravobem-kixaruketoxes-padukuvone.pdfIn PDF document text
    • http://sweethomedelivery.com/ckeditor/ckfinder/core/connector/php/uploads/files/jewanufogitujelava.pdfIn PDF document text
    • https://disaxugotusineg.weebly.com/uploads/1/3/1/8/131871710/dec333ab97.pdfIn PDF document text
    • https://pt-olympus.com/contents/files/jojadefaf.pdfIn PDF document text
    • http://bronnicy.inhome360.ru/admin/ckfinder/userfiles/files/nonaxiforexajisiluv.pdfIn PDF document text
    • https://duocvinhkim.com/userfiles/file/zifededivi.pdfIn PDF document text
    • https://bazeliwelari.weebly.com/uploads/1/3/1/8/131857734/zuloruvaka.pdfIn PDF document text
    • https://afpf.emailingmanager.com/uploads/editor/file/zuvedugafafexofaxigovuxor.pdfIn PDF document text
    • https://sifebonuvotom.weebly.com/uploads/1/4/1/4/141439698/12922f27f407.pdfIn PDF document text
    • https://minesipapotevu.weebly.com/uploads/1/3/4/1/134108733/nimoduvejifusewe.pdfIn PDF document text
    • http://columb-sklep.pl/userfiles/file/venelofoxisimirumofewipir.pdfIn PDF document text
    • http://chanhungcorp.com/images/uploads/files/81545417706.pdfIn PDF document text
    • http://kondicionery-krasnogorsk.ru/upload_picture/file/komomakafubun.pdfIn PDF document text
    • https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/f28ii2oaqvl8dai87oqchpa60n/22883135299.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_off0001a130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A130 10844 bytes
SHA-256: 71597ea932696ced8a8154a966fc92eb9a1e3318c3d5406864d89e74e4c1f895
font_01_sfnt_off0001ba43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BA43 25944 bytes
SHA-256: 2f9834e569e59ef1a880a5b16e86772979a73f18628d708f205b5ac422ae0114
font_02_sfnt_off0001fafe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FAFE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1