Malicious PDF — malware analysis report

Static analysis result for SHA-256 f99e30aadfdac00a…

MALICIOUS

PDF

346.5 KB Created: 2022-02-25 08:54:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-14
MD5: 1106193395684d186a5a7c5892735af0 SHA-1: b648e63c6f8c0110bdb4406ba49f4d935aed9d13 SHA-256: f99e30aadfdac00a2f84a5b7fd610980502d6092009c9a25612cc0699d002b2c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6782

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://yubit.co.za/XSRYdR1H?utm_term=ken+blanchard+situational+leadership+pdf PDF link annotation
    • https://bu8m3tas68s-b1.com/contents/files/dagavakipibe.pdfIn PDF document text
    • http://pusancard.com/userData/board/file/rowilepemekokivaselozu.pdfIn PDF document text
    • http://thetsaban3watnuea.com/UserFiles/file/14899547496.pdfIn PDF document text
    • https://femagnet.com/upload/edu/article/file/xudeseruwanapepomuvep.pdfIn PDF document text
    • http://yarpb.ru/pic/userfile/66020263477.pdfIn PDF document text
    • http://pusheng168.com/uploadfiles/20220210054748.pdfIn PDF document text
    • https://tierrettung-in-katalonien.org/ckfinder/userfiles/files/lezagirifomadipokuvesafa.pdfIn PDF document text
    • https://biomedchita.ru/imeg_master/file/xewazu.pdfIn PDF document text
    • http://robalton.es/Albums/images/file///18656298731.pdfIn PDF document text
    • https://hamasataccessories.com/userfiles/files/88029073403.pdfIn PDF document text
    • https://merydian.pl/nowymerydian/userfiles/file/72889593573.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b17d847ddd5---merufinexejalepezikiwa.pdfIn PDF document text
    • http://egresiangus.com/admin/kcfinder/upload/files/femujijoj.pdfIn PDF document text
    • https://jnvhardoi.org/ckfinder/userfiles/files/12850996053.pdfIn PDF document text
    • http://viaecommerce.com.br/kcfinder/upload/files/16978137075.pdfIn PDF document text
    • http://khaskhaan.mn/uploads/userfiles/files/8124841106.pdfIn PDF document text
    • http://gmixlocadora.com.br/admin/kcfinder/upload/files/43546227840.pdfIn PDF document text
    • https://thevalauryscottage.com/caningest/images/file/77410645096.pdfIn PDF document text
    • https://www.tfsuk.com/kcfinder/upload/files/49662468622.pdfIn PDF document text
    • http://ck-buhgalter.ru/userfiles/file/tatibojo.pdfIn PDF document text
    • http://ezibra.pl/upload//file/bovova.pdfIn PDF document text
    • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/161654c74c140c---vawegoxibodiwesutumawuwi.pdfIn PDF document text
    • http://commissioncollectionlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/68922671531.pdfIn PDF document text
    • http://historia-bfured.hu/userfiles/file/jiberekasu.pdfIn PDF document text
    • https://a2designbg.com/userfiles/file/luxekurisexajifeb.pdfIn PDF document text
    • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16153512779e03---1250547472.pdfIn PDF document text
    • http://resurrection-life.net/userfiles/files/4457766596.pdfIn PDF document text
    • http://www.radio-kum.si/data/files/93631187359.pdfIn PDF document text
    • https://talaa-obour.com/webmisr/uploadwebmisr/file/90354868044.pdfIn PDF document text
    • http://vouchertiket.com/airplane/ckeditor/uploads/files/tikiguzaligunaf.pdfIn PDF document text
    • http://chongros.com/userData/board/file/65596326175.pdfIn PDF document text
    • http://www.tecs4.com/intranet/ckfinder/userfiles/files/dojewas.pdfIn PDF document text
    • http://clinicaveterinariagoitese.it/userfiles/files/wusawezadoje.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/64604416da6ea3e09c25ef486756e549/25983936993.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_off0004f941.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F941 19088 bytes
SHA-256: 01eb4b3fb1107804cde9948ac901221597e3ea8ce88b421313a61a7d6bd5bc90
font_01_sfnt_off000529b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x529B0 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off000540d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x540D0 10948 bytes
SHA-256: ca1c58d87942e0e16b84d01055d40b34e231869f2baaa51fb0e1c3f3865b0cc6