Malicious PDF — malware analysis report

Static analysis result for SHA-256 941c12327a5fa38f…

MALICIOUS

PDF

74.0 KB Created: 2022-04-22 19:48:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 1b146edd886ca03c714e00618ec8cfc1 SHA-1: 3fe81f55dcc193bf1ffb21d3b8a0f570d50bbb62 SHA-256: 941c12327a5fa38ffa6d019749b015e22b065a043df2fdb680411ae41be699a3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file contains embedded JavaScript and a large number of external links, many pointing to PDF files, indicative of a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to phishing sites or download further malware. The embedded JavaScript is likely used to facilitate the redirection or exploit vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://lovig.co.za/YmrXLWy8?keyword=how%20to%20remove%20dots%20in%20table%20of%20contents%20word%202010 PDF link annotation
    • http://filmovani.eu/img-content/files/liwoxewet.pdfIn PDF document text
    • http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/1625e16c07651d---62268375185.pdfIn PDF document text
    • http://karimeh.com/public/userfiles/file/gumejevutetag.pdfIn PDF document text
    • https://rapijevile.weebly.com/uploads/1/4/1/2/141260043/telokemufalazofigalu.pdfIn PDF document text
    • https://bixedonaxube.weebly.com/uploads/1/3/4/6/134619794/81888.pdfIn PDF document text
    • http://oodow.cn/upload/file/220417225227320005ezty2wghcli7.pdfIn PDF document text
    • https://momimuraw.weebly.com/uploads/1/3/1/3/131384495/xawitotuged_safiwaka_farevedizim.pdfIn PDF document text
    • http://www.superior-inkjet.com/login/ckfinder/userfiles/files/47337669465.pdfIn PDF document text
    • https://kimiligemapi.weebly.com/uploads/1/3/4/3/134343210/senozosowimerusibawu.pdfIn PDF document text
    • http://edu-tur.ru/userfiles/file/44980001383.pdfIn PDF document text
    • https://lipodemofuxe.weebly.com/uploads/1/3/5/3/135316225/0f9384.pdfIn PDF document text
    • https://sinonulu.weebly.com/uploads/1/3/4/6/134654736/tagagifubes-zibozuvewewofe-koluwemava.pdfIn PDF document text
    • https://verevivomilob.weebly.com/uploads/1/3/0/7/130738769/zisajuxakiboru.pdfIn PDF document text
    • https://fijogukovope.weebly.com/uploads/1/3/1/3/131379832/jufafusomutifa-dimepixuwizo-teruxadi.pdfIn PDF document text
    • https://smartcrm.cloud/upload/files/49205294653.pdfIn PDF document text
    • https://sunamomam.weebly.com/uploads/1/4/1/3/141350431/wodejelez.pdfIn PDF document text
    • https://zotabuja.weebly.com/uploads/1/3/4/5/134510490/gamomokiz_biganotik.pdfIn PDF document text
    • http://comitatoamiantovelodromo.org/userfiles/file/nubepadivarudul.pdfIn PDF document text
    • https://www.ttmagazin.com/assets/admin/js/plugins/kcfinder/upload/files/gekotakiribaximonos.pdfIn PDF document text
    • http://www.cidadania23pr.org.br/ckeditor/kcfinder/upload/files/kufagunavawebidizopazixi.pdfIn PDF document text
    • http://kxqcgs.com/filespath/files/20220321043218.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_off0000b85d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB85D 17440 bytes
SHA-256: c768ce3d069674acc219a936ce5b9eecff13e2b298b1535f3959bfbd7906ef27
font_01_sfnt_off0000e601.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE601 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000fe18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE18 11216 bytes
SHA-256: 2f30a4a5a8194ab2c3927a266c8457c3e054b114429f726bfc65f6085b4d5246