Malicious PDF — malware analysis report

Static analysis result for SHA-256 44517cefef3b9eea…

MALICIOUS

PDF

373.0 KB Created: 2022-04-10 18:56:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: d4330bf5daf11bd9c48e28b726b22e5d SHA-1: daad74ea8e5503a7366af7474b971b4d77d89a9f SHA-256: 44517cefef3b9eea843dd75183eb4689dc4fd9aba5cf093b00cb87ed9e0d0eba
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and multiple external URIs, including one pointing to a compromised WordPress upload directory. The heuristic 'PDF_SEO_UTM_REDIRECTOR_LINK' indicates the document uses an image lure to redirect users to a phishing site. The embedded JavaScript likely facilitates the download or execution of a secondary payload, contributing to the overall phishing and malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7298

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://lovig.co.za/XSRYdR1H?utm_term=word+problems+on+addition+and+subtraction+for+class+5+pdf PDF link annotation
    • https://nikuwexipamojag.weebly.com/uploads/1/3/0/8/130813731/tasejixaxix_mesomudatugi_lelukera_fanitavapesup.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/32e691f346865330b170080434746006/wuwopibadimetepiroterib.pdfIn PDF document text
    • https://tagizolatoz.weebly.com/uploads/1/3/5/3/135311358/tojiva_sababarofure_kesezolul_mapigewon.pdfIn PDF document text
    • https://foodvellythailand.com/upload/files/51134959457.pdfIn PDF document text
    • https://xabiwavozan.weebly.com/uploads/1/3/4/0/134012294/nelodibix.pdfIn PDF document text
    • http://rvhifi.cz/files/file/gifalejakokanavijiriwi.pdfIn PDF document text
    • https://zefowumuf.weebly.com/uploads/1/3/5/3/135327275/631168.pdfIn PDF document text
    • https://detalejutapebis.weebly.com/uploads/1/3/4/6/134610814/071ccc437d1e7.pdfIn PDF document text
    • http://www.barbazan-debat.fr/ckfinder/userfiles/files/45335813991.pdfIn PDF document text
    • https://dunabosugetagek.weebly.com/uploads/1/3/4/6/134601841/2035456.pdfIn PDF document text
    • http://forcedainik.com/dbros/public/ckeditor/kcfinder/upload/files/difawivabutupulijuna.pdfIn PDF document text
    • https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1624316fb6cc4f---69167264865.pdfIn PDF document text
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16239855813bb0---netuvebekufapapovubog.pdfIn PDF document text
    • https://bubemufebe.weebly.com/uploads/1/3/4/4/134470009/9aad8cf.pdfIn PDF document text
    • https://nolipugi.weebly.com/uploads/1/3/4/6/134652161/xovon.pdfIn PDF document text
    • https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/dff74678d0a03f8ac95bc8583b4ee7cb/40010559773.pdfIn PDF document text
    • https://ximazula.weebly.com/uploads/1/3/0/7/130738777/7554305.pdfIn PDF document text
    • http://parafiasadkowice.pl/pliki/32086053572.pdfIn PDF document text
    • https://www.informacion-indoorclub.com/boletines/img/file/verorevelikikon.pdfIn PDF document text
    • http://satexvernaz.fr/kcfinder/upload/files/vovigorisajumelo.pdfIn PDF document text
    • http://beibarys.com/app/webroot/js/kcfinder/upload/files/nuwiled.pdfIn PDF document text
    • https://basalulonow.weebly.com/uploads/1/3/4/6/134612360/c179e2a4311.pdfIn PDF document text
    • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16209cbddd9001---46225188449.pdfIn PDF document text
    • https://comobrew.illomoc.com/newsite/images/user_uploads/file/65451202355.pdfIn PDF document text
    • https://alhasooncorp.com/Files/files/4078747655.pdfIn PDF document text
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16205467b32b8d---basoderugeborifigepazit.pdfIn PDF document text
    • https://xeluluferira.weebly.com/uploads/1/3/4/2/134266649/d43565d2e33c3a7.pdfIn PDF document text
    • http://formanwoman.ru/userfiles/files/33070783675.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_off00056773.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56773 11148 bytes
SHA-256: 48bdc4ecff2d2b04faf07408e9a4f068a801edd3e7d41e45d60ecb18f75b8209
font_01_sfnt_off00058149.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58149 16704 bytes
SHA-256: 83eccbee6827d92e1bbc00f3218fa8a42ad9f6ff67c6e84111057f881e18607f
font_02_sfnt_off0005ac68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC68 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1