Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb030e88dba65552…

MALICIOUS

PDF

210.0 KB Created: 2022-03-24 10:28:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: 5548c2b4c984dd54bede651dbc2cd67b SHA-1: 15e7e94390ea5022bb18ad6759ca630d4c363a95 SHA-256: fb030e88dba65552f4bdb6e19ffc6016d69335e54146f6e8d5c9e1734217c238
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7371

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://mifuj.co.za/XSRYdR1H?utm_term=don+t+make+me+think+3rd+download PDF link annotation
    • https://wita.lt/images/files/zusatakofosilivasigis.pdfIn PDF document text
    • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16220830606ab6---69156049597.pdfIn PDF document text
    • https://guidetudiant.elite-media.fr/media/77671871016.pdfIn PDF document text
    • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/840181db8116cc4c4c31d0a707b80473/nejavaxigax.pdfIn PDF document text
    • http://dentherapia.hu/files/file/85295661655.pdfIn PDF document text
    • http://machinesupplier.cn/data/product/file/202234_211421_113.pdfIn PDF document text
    • https://borekwlkp.halpress.eu/userfiles/file/tejanoxafuju.pdfIn PDF document text
    • http://fnathservices.com/upload/file/92039993742.pdfIn PDF document text
    • http://globalroomplus.com/bot/ckfinder/uf/files/36053247384.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622f6f7b61126---bemiduvapeguke.pdfIn PDF document text
    • http://webmba.fr/client/logo/file/11593239622.pdfIn PDF document text
    • http://apismorava.eu/docs/51638346731.pdfIn PDF document text
    • http://www.hussco-steel.com/husscofiles/files/49908435638.pdfIn PDF document text
    • http://www.jssmiec.com/themes/js/kcfinder/upload/files/37239742685.pdfIn PDF document text
    • http://pc-driver.ru/userfiles/files/16184915647.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f9f270a2449---89996251454.pdfIn PDF document text
    • http://ikmblansko.cz/files/upload/files/19322315863.pdfIn PDF document text
    • http://ncteonline.com/userfiles/file/nerifumiwipukowe.pdfIn PDF document text
    • http://khotelmarket.com/FileData/ckfinder/files/20220212_77028D3304DCA5C2.pdfIn PDF document text
    • https://chaletvenay.skidnapping.com/uploadfiles/files/xasotasigeximiberem.pdfIn PDF document text
    • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16208f6bc132ab---92921161637.pdfIn PDF document text
    • http://cyc-catering.pe/disac/userfiles/file/vejakenosobivazovete.pdfIn PDF document text
    • https://cira.thinkabit.net/downloads/files/japomogarulufom.pdfIn PDF document text
    • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620518323297b---10103907025.pdfIn PDF document text
    • http://bcf-plv.com/kcfinder/upload/files/56134506744.pdfIn PDF document text
    • http://chinajessie.com/seadata/data/uploads/img/file/164522789090.pdfIn PDF document text
    • http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/161f89be859437---rovax.pdfIn PDF document text
    • https://sakata-mokuzai.com/db/item/uploads/files/jotitonatopalamasir.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_off0002d54e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0002d54e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002d54e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D54E 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0002ec69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC69 19596 bytes
SHA-256: bdda9765b1d8c7cd68c1881d70c2cb1bb9132ca320309dfecf0b1f3422924352
font_02_sfnt_off00031ea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31EA0 10696 bytes
SHA-256: e57f452d6e499d87e919905c4f79641ca4a761e17cac5de84252fc29bf3df33f