Malicious PDF — malware analysis report

Static analysis result for SHA-256 116518a87725bcc5…

MALICIOUS

PDF

286.6 KB Created: 2022-03-15 08:51:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: d9b3a9f64d9de50b89491f4abe1b3fc6 SHA-1: ba30b4079535ff23d68883c042b1cf7d6d2aa8b6 SHA-256: 116518a87725bcc5e63878394a5809bf735b260a7359ecb37caef347072bb9ae
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier. It contains embedded JavaScript and multiple external links, including one pointing to a compromised CMS upload directory, suggesting it's designed to redirect users to malicious sites or facilitate further infection. The presence of a redirector link further supports a phishing or malware distribution intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7749

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=the+full+form+of+microprocessor PDF link annotation
    • https://castrolraceway.global-powersystems.com/~globa859/castrolraceway/userfiles/file/20701026429.pdfIn PDF document text
    • https://cbmpolska.pl/www/js/kcfinder/upload/files/bevoposexoduvexole.pdfIn PDF document text
    • http://comlark.ru/userfiles/files/bumuxerasox.pdfIn PDF document text
    • https://www.yukule.com/ToBeDeleted/admin-assets/js/ckeditor_4.6.2_standard/kcfinder/upload/files/zusikikugekubul.pdfIn PDF document text
    • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620fdb082bd0d---letilonut.pdfIn PDF document text
    • http://shangrilatheshow.com/ckfinder/userfiles/files/94590364847.pdfIn PDF document text
    • https://futurefacesnyc.com/uploads/file/xovarilabazoguliwo.pdfIn PDF document text
    • http://sualpturizm.com/userfiles/file/wepewuraf.pdfIn PDF document text
    • http://lesbambousbleus.fr/ckeditor/upload/files/14467924677.pdfIn PDF document text
    • https://www.cbrn.tj/nrsa_system/ckeditor/kcfinder/upload/files/34795588362.pdfIn PDF document text
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620365c4bdde2---95698030712.pdfIn PDF document text
    • http://xn--80ab1a9a.xn--p1ai/sadm_files/wurixoxesusesazetiluli.pdfIn PDF document text
    • http://yoyaku.com/app/webroot/js/kcfinder/upload/files/kozupexa.pdfIn PDF document text
    • http://andreevka.topmebli.com/content/xuploadimages/file/50487180262.pdfIn PDF document text
    • http://brodart01.com/wp-content/plugins/super-forms/uploads/php/files/84fodrgra597m2577lnj13q56l/xuvitelug.pdfIn PDF document text
    • https://www.coopi.org/admin/assets/js/ckeditor/kcfinder/upload/files/files/xenun.pdfIn PDF document text
    • https://noursportevents.com/wheelmarine/userfiles/file/faxaxokabibo.pdfIn PDF document text
    • https://e-midas.ro/files/file/91715749780.pdfIn PDF document text
    • http://eugensa.lt/app/webroot/uploads/userfiles/files/galubukibokawizibanu.pdfIn PDF document text
    • http://rc-modeller.se/images/file///17636732194.pdfIn PDF document text
    • https://villanakarin.com/userfiles/files/vewew.pdfIn PDF document text
    • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1621c736a3ab4f---jusibojebujamabazixip.pdfIn PDF document text
    • http://otticagries.it/custom/archivio/files/7971832763.pdfIn PDF document text
    • http://dhf-china.com/d/files/51427802263.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_off00040593.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40593 21024 bytes
SHA-256: 8a0ade5a4841370f4b7e292620ad328dd6cfed78d7bdbd8ebe67be3805069daa
font_01_sfnt_off00043d84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43D84 10444 bytes
SHA-256: 68a0521f0a5ec0c1e29ef13dd797e8ad5e167b6bd7c6aab8d54e0d39188deb4f
font_02_sfnt_off0004552e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4552E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9