Malicious PDF — malware analysis report

Static analysis result for SHA-256 445353c7969a0cb1…

MALICIOUS

PDF

75.1 KB Created: 2022-04-01 16:36:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: c2911ac702d0e3c0d851ec6f659429d8 SHA-1: e0fc7a1560c07a9d40472984e6403a9b207ce9fe SHA-256: 445353c7969a0cb1960f365ecd06a941ec2547377e02d16c658874e3e164966f
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded JavaScript and a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing lure. The 'Fake invoice / payment lure' heuristic further supports the idea that the document is designed to trick the user into clicking on one of the provided URLs, which likely lead to malicious content or further phishing attempts. The embedded JavaScript is likely used to facilitate the redirection or obfuscate the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 8

  • 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.
  • 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://mifuj.co.za/YmrXLWy8?keyword=can%20you%20change%20garage%20door%20openers PDF link annotation
    • https://tamilifikex.weebly.com/uploads/1/3/5/3/135321075/fuweg.pdfIn PDF document text
    • https://bomosofa.weebly.com/uploads/1/3/4/4/134496399/wupugizadan.pdfIn PDF document text
    • http://bakineshr.az/ckfinder/userfiles/files/72382967899.pdfIn PDF document text
    • https://keziwoxiw.weebly.com/uploads/1/3/4/0/134042402/6795809.pdfIn PDF document text
    • https://gojenejanoz.weebly.com/uploads/1/3/0/7/130739654/9176126.pdfIn PDF document text
    • https://punujagenak.weebly.com/uploads/1/3/0/7/130775029/dd8f62dddb09b6.pdfIn PDF document text
    • https://voxivunesiru.weebly.com/uploads/1/3/1/4/131407918/9514852.pdfIn PDF document text
    • https://kokujefep.weebly.com/uploads/1/3/1/4/131409677/caa188c1a0f1.pdfIn PDF document text
    • http://imhyuk.com/imhyukeditor/userfile/file/guzozowoxu.pdfIn PDF document text
    • https://sukewemuzi.weebly.com/uploads/1/3/4/6/134668821/dazuwudat_vapepozotupi_lawisebirile_kotemadeji.pdfIn PDF document text
    • https://bosuzegenelulu.weebly.com/uploads/1/3/4/1/134131522/1db4a017b.pdfIn PDF document text
    • http://chinalabware.es/d/files/vofatowoje.pdfIn PDF document text
    • http://webbuilders.com/files/file/dinux.pdfIn PDF document text
    • https://elnativocoffee.com/silver/upload/files/paxosaguxofuga.pdfIn PDF document text
    • http://dolnoslaskialarmsmogowy.pl/imgturysta/files/zajitojelufujisef.pdfIn PDF document text
    • http://bephoangdung.vn/uploads/ckfinder/files/69569139982.pdfIn PDF document text
    • https://jejomedilad.weebly.com/uploads/1/3/5/3/135316302/f9f2379.pdfIn PDF document text
    • https://dujililapute.weebly.com/uploads/1/3/5/3/135347223/xirikujuwodir.pdfIn PDF document text
    • https://kenazago.weebly.com/uploads/1/3/1/0/131070597/ea3b64.pdfIn PDF document text
    • http://demo-enriquemora.shopcloud.es/ckfinder/userfiles/files/jagifazage.pdfIn PDF document text
    • https://netiwililisal.weebly.com/uploads/1/3/5/3/135398280/9276186.pdfIn PDF document text
    • https://woseluwimi.weebly.com/uploads/1/3/4/1/134131525/nefixubofezenip_gulevupej_tiwevale.pdfIn PDF document text
    • https://vepufekuso.weebly.com/uploads/1/3/0/7/130775624/mopogijo.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/kkvi2m73p887a8qm4l93elk95c/65284203666.pdfIn PDF document text
    • https://www.peace4r.com/assets/admin_panel/js/kcfinder/upload/files/84826611566.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_off0000c24a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC24A 16740 bytes
SHA-256: d64ff869f5d0e3bb6f66e9eb851b5016e34de679491bcbfac0c2937b596ac9b4
font_01_sfnt_off0000edb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000105ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105CE 10804 bytes
SHA-256: a691d691b2331c3c325c8ed966f6b7488a8a8f8c7eb1c30ea2677b06c87f4b74

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