Malicious PDF — malware analysis report

Static analysis result for SHA-256 9410b1424ca30be6…

MALICIOUS

PDF

351.2 KB Created: 2022-02-04 08:56:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 8b70d55b9bf53da45c7d29a0486c7279 SHA-1: 7dccec65b27d8f44c36d500b9ef596ad4742c6c8 SHA-256: 9410b1424ca30be6606150c744da47040142247545b5dc8bf5a8e6223d551f2c
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to compromised WordPress uploads and SEO redirectors, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier further support its malicious nature. Although no scripts were explicitly extracted, the presence of external URIs and a link farm suggests the document is designed to redirect users to malicious content, likely for initial access via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6763

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/XSRYdR1H?utm_term=friday+hourly+weather+report PDF link annotation
    • http://vollaracis.com/UserFiles/file/sinusetewi.pdfIn PDF document text
    • https://hydratrend.com/application/third_party/ckfinder/userfiles/files/xoginuwajefep.pdfIn PDF document text
    • http://anpamedical.com/kcfinder/upload/files/manelanim.pdfIn PDF document text
    • http://influences-vegetales.eu/assets/Image//files/62162072981.pdfIn PDF document text
    • https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/istsjmp878gseop8halb3mr0ti/pigamexemuxu.pdfIn PDF document text
    • http://ablerexthailand.com/userfiles/files/28208344807.pdfIn PDF document text
    • https://triplejfoundation.com/nbloom/fckuploads/file/54550208001.pdfIn PDF document text
    • http://interel-rus.ru/test/sites/default/files/file/tefibalopiwukuso.pdfIn PDF document text
    • http://commsoft.nu/demo/ktb/wsmbilder/files/9445808175.pdfIn PDF document text
    • http://malifer.hu/upload/file/jivuwafozovezuzowo.pdfIn PDF document text
    • https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d86b510fc26b2ea39ebbf3d6750c9331/jarevuxupojenoriw.pdfIn PDF document text
    • http://goldmustang.com/files/files/zupalixisow.pdfIn PDF document text
    • https://bishopsalamatkhokhar.org/userfiles/file/76900242634.pdfIn PDF document text
    • http://atthaya.com/file_media/file_image/file/35755399742.pdfIn PDF document text
    • https://bursakaynak.net/userfiles/file/29434071016.pdfIn PDF document text
    • https://ladachess.ru/userfiles/file/85384530900.pdfIn PDF document text
    • http://go-pxl.com/uploads/files/didovurerozekunawu.pdfIn PDF document text
    • http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161d24bd8885fb---jesabututidojozegegepube.pdfIn PDF document text
    • http://copy2d.com/ftp/image/file/71480481653.pdfIn PDF document text
    • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/161bd55394d2a8---43236602840.pdfIn PDF document text
    • http://china-miyaco.com/img/file/20218292194.pdfIn PDF document text
    • http://kuwaited.com/cote_dor_import/admin/ckfinder/userfiles/files/jezigawinewirerotexaworu.pdfIn PDF document text
    • http://xn--42cfa4ewb0a0b3fwh.com/imageupload/files/28802413715.pdfIn PDF document text
    • http://stmarysharipad.com/userfiles/file/55572663829.pdfIn PDF document text
    • http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616589c53a7e3---69344591942.pdfIn PDF document text
    • http://americandeliorder.com/uploads/files/sirotixev.pdfIn PDF document text
    • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/ovnivrq44ju2p2omm305mf3une/36254557073.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_off0005159d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5159D 15844 bytes
SHA-256: 6adf84f3c4aafc1d8b7abb8025b6c622fb2fb6a46a7541a53f90b91c9603aec8
font_01_sfnt_off00053eb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53EB4 10496 bytes
SHA-256: 82d9c3089ffb01ae5e5e19727d9f1a68487ced1e76e53f8e77b5340053b84585
font_02_sfnt_off000556b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x556B0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

Open this report in the interactive analyzer, or submit your own file for analysis.