Malicious PDF — malware analysis report

Static analysis result for SHA-256 44155cf558031475…

MALICIOUS

PDF

286.8 KB Created: 2022-02-19 09:53:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: 5e6338c2ef426c1c15c3e4666aa65375 SHA-1: 75891e8d4f0b9801bf4f960d1e20a5f5915eae95 SHA-256: 44155cf558031475e8430112c676546045650abeecf095f91a9adad558fbdcfe
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7346

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://tevav.co.za/XSRYdR1H?utm_term=pwc+annual+report+2015+pdf PDF link annotation
    • http://www.bioderko.chodziez.pl/kcfinder/upload/files/11974424796.pdfIn PDF document text
    • http://abb-impuls.su/kcfinder/upload/files/32302623171.pdfIn PDF document text
    • http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/xaletesunejavirul.pdfIn PDF document text
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1620fec6151e15---zadevubojazalene.pdfIn PDF document text
    • https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/5cb19a84da5cccd0b3c0eaa7ac68c027/tujafofuzexob.pdfIn PDF document text
    • http://studiotecnicomartani.eu/userfiles/files/sasumikakefise.pdfIn PDF document text
    • http://contrast.no/ckfinder/userfiles/files/lepam.pdfIn PDF document text
    • http://www.vinoplaza.nl/img/upload/files/nalutorupekokenuwanefimal.pdfIn PDF document text
    • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/161394af41bc92---35685431085.pdfIn PDF document text
    • http://satisfytech.com/ck/upload/files/sifuzudakevuzigije.pdfIn PDF document text
    • http://nutranghongngoc.com/media/ftp/file/63419544356.pdfIn PDF document text
    • https://lanegarrett.net/userfiles/file/25131017751.pdfIn PDF document text
    • https://traicaygiasi.com/Images_upload/files/gepowag.pdfIn PDF document text
    • https://icrs-as.com/userfiles/file/xinizo.pdfIn PDF document text
    • http://meuble-tunisie.com/userfiles/file/17543090257.pdfIn PDF document text
    • http://www.klimavill.com//data/editorfile/fadukumatuwalajatuna.pdfIn PDF document text
    • http://oasis-inwaste.asia/files/file/40390207172.pdfIn PDF document text
    • https://ontogepszerviz.hu/editor_up/wasunanani.pdfIn PDF document text
    • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/162103458bbb38---73809576718.pdfIn PDF document text
    • http://polesprogettazioni.com/userfiles/files/4058756254.pdfIn PDF document text
    • http://4998horo.gmmwireless.com/contents/files/8302131901.pdfIn PDF document text
    • http://sbnjl.com/userfiles/files/mewubeb.pdfIn PDF document text
    • https://albertsdrukwerk.nl/bestanden/files/22287318654.pdfIn PDF document text
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/d064a5644cd32d38b10ce99c926218fa/81892363539.pdfIn PDF document text
    • http://self119.net/upload/userfiles/2021/07/files/210704105714.pdfIn PDF document text
    • http://eths1967.org/clients/6/6b/6b000f7c2bca5b3a89f93fde6b54c5e6/File/pomozow.pdfIn PDF document text
    • http://gazomotor.com/allinone/file/41988983199.pdfIn PDF document text
    • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/161a80b1572b7b---89114935095.pdfIn PDF document text
    • http://exima.kr/userData/board/file/dedex.pdfIn PDF document text
    • http://khachsansapa.vn/webroot/img/files/46169859245.pdfIn PDF document text
    • http://sherry-japan.com/uploads/files/zudojagetawomixitujeteduj.pdfIn PDF document text
    • http://voyagevietnamlaos.com/hinhanh/file/3848648776.pdfIn PDF document text
    • http://capthepcongtrinh.com/uploads/news/files/8552029465.pdfIn PDF document text
    • http://www.teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/20633960874.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 extracted file (font_00_sfnt_off0004037d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004037d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004037d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4037D 20480 bytes
SHA-256: 3d7d98b2228ceac0020a2f985436a30221a0a32fcb894d919b8e94f1fd7db27b
font_01_sfnt_off000439ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x439CE 10968 bytes
SHA-256: ed09998ccadee03e7b9558d874932ec9c911caa4071c2d903361baec2dd3a545
font_02_sfnt_off00045396.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45396 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9