Malicious PDF — malware analysis report

Static analysis result for SHA-256 44565a847ab74882…

MALICIOUS

PDF

466.6 KB Created: 2022-03-27 09:51:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-10
MD5: 9c733949fc1fe7d718f7cfb3ae8218f1 SHA-1: 2da7a09a5f776d8b58ad60fc5c89942fcf3524bb SHA-256: 44565a847ab7488282c0a6f0840dfe6dc91d4afe7e3085d8ac8f5e7f7ca5aadb
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and exhibits characteristics of a phishing lure. It contains embedded JavaScript and links to a redirector hosted on a compromised WordPress site, suggesting an attempt to deliver a secondary payload. The use of a redirector and a compromised upload link points towards an effort to obscure the final malicious destination and bypass security controls.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4579

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
  • 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.
  • 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://loheb.co.za/XSRYdR1H?utm_term=tetra+whisper+filter+instructions PDF link annotation
    • http://boletin.alicantehosteleria.com/lib/ckfinder/userfiles/files/97411021186.pdfIn PDF document text
    • http://thechinatailor.com/uploadfile/file/2022020910521073499.pdfIn PDF document text
    • http://goupcrm.com.br/kcfinder/upload/files/49475186258.pdfIn PDF document text
    • https://kohaz.hu/files/file/zekusuzidulojejoja.pdfIn PDF document text
    • http://www.elstar.ru/uploads/files/97099211912.pdfIn PDF document text
    • http://hudebninastrojedrastik.cz/js/kcfinder/upload/files/84782598877.pdfIn PDF document text
    • https://www.webursitet.ru/kcfinder/upload/files/93538803312.pdfIn PDF document text
    • http://dip.natura2000.pl/imgturysta/files/rororaxusonanulugalatu.pdfIn PDF document text
    • http://sentidoseg.com/resources/original/file/42603513133.pdfIn PDF document text
    • http://gdi-fr.com/upload/upload/fazavoxilu.pdfIn PDF document text
    • http://cameradungphat.com/uploads/files/noxolupadifuf.pdfIn PDF document text
    • https://endeligmandag.no/e-brev/data/div/72364272665.pdfIn PDF document text
    • https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/7f6ed3d74762293e907560d3993f269f/18931654863.pdfIn PDF document text
    • http://tentauto23.ru/ckfinder/userfiles/files/pilibogafobusegijad.pdfIn PDF document text
    • http://unite-chem.com/upload/files/giwufudekobiroperuwumaf.pdfIn PDF document text
    • https://rtvpuls.com/ckfinder/userfiles/files/gisoxo.pdfIn PDF document text
    • https://gbrcbodhgaya.com/userfiles/file/digepokewiretid.pdfIn PDF document text
    • https://laplacedesstores.com/upload/file/lubogasudaxabirufitakirep.pdfIn PDF document text
    • https://cafesca.info/ckfinder/userfiles/files/22407902871.pdfIn PDF document text
    • http://jhdjt.com/images/upload/File/masejejexudonedorat.pdfIn PDF document text
    • https://jeevadhara.org/work/london/userfiles/file/49280141240.pdfIn PDF document text
    • https://kalashad.com/userfiles/file/12159180689.pdfIn PDF document text
    • http://www.groupkms.com/ckeditor/kcfinder/images/files/powesasedolorimofido.pdfIn PDF document text
    • http://nage-z.com/ckfinder/userfiles/files/5818420319.pdfIn PDF document text
    • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1623771e495bc2---2573301828.pdfIn PDF document text
    • http://preiss.at/upload_files/files/2709553819.pdfIn PDF document text
    • http://constantcontinuity.com/membership/data/files/57644957741.pdfIn PDF document text
    • https://tmtechvn.com/webroot/img/files/35040751556.pdfIn PDF document text
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/161fbd9b4256e0---kapofimukux.pdfIn PDF document text
    • http://kaica.org.sa/ckeditor/kcfinder/upload/files/jetuwetexuvivata.pdfIn PDF document text
    • http://khyljg.com/uploadfiles/files/63688330379.pdfIn PDF document text
    • https://xn----8sbkgjdl3aku5f.xn--07-6kc3bf4angc2g.xn--p1ai/files/files/wetatef.pdfIn PDF document text
    • http://zbraneklapka.cz/ckfinder/userfiles/files/25847571630.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006bb24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BB24 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0006d23e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D23E 16468 bytes
SHA-256: 039e9bd1aab6374c84db68bf5a03a1e4ad6fff4c6abbe115c5a5fcaf92f98fcf
font_02_sfnt_off0006e8a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E8A0 21988 bytes
SHA-256: c20ab253faafb1f1d3da2d80f211766a86c1dfcce64c58347c74bb01763d1bff
font_03_sfnt_off00072167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72167 10728 bytes
SHA-256: fcac3d7703f4be687879efcb982db5d70d952ee4008ebb64b608dad7f4f4e076