Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b575ef45237ae0…

MALICIOUS

PDF

295.2 KB Created: 2022-02-26 21:21:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 28498bd8a05ee596ecb63fcf76759528 SHA-1: 307963b30677d475b4c934950188bccd2e716f6b SHA-256: 88b575ef45237ae044edb58e89d670470c0ae856d01e8d908e693b58df92209c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6042

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://yoyep.co.za/XSRYdR1H?utm_term=codewarrior+6.+3++free PDF link annotation
    • http://neoneofitou.com/ckfinder/userfiles/files/43834229493.pdfIn PDF document text
    • http://sfinance.mn/userfiles/files/josetifivazexax.pdfIn PDF document text
    • http://safetyservicecenters.com/userfiles/file/97905801678.pdfIn PDF document text
    • http://tothimi.com/admin/kcfinder/upload/files/sunomixixekepen.pdfIn PDF document text
    • https://lentes123.com/aym_image/files/rofurofizanewip.pdfIn PDF document text
    • https://inwestorfinanse.pl/userfiles/file/68429009549.pdfIn PDF document text
    • http://www.sushmitamukherjee.com/fckimages/file/31456165406.pdfIn PDF document text
    • https://niceppl.com/images/file/kilamumixuzigixeki.pdfIn PDF document text
    • http://annabarons.com/files/files/nujawasugubusalepal.pdfIn PDF document text
    • http://www.nstrechy.cz/upload/files/gerudema.pdfIn PDF document text
    • http://chochosanencino.com/uploads/files/rofej.pdfIn PDF document text
    • http://derivat.sk/files/7257975641.pdfIn PDF document text
    • https://matauco.com/sites/default/files/uploads/file/32116520245.pdfIn PDF document text
    • http://nena-artspace.com/ckfinder/userfiles/files/zipiwububimasu.pdfIn PDF document text
    • http://divodizain.ru/ckfinder/userfiles/files/64166971609.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16134511493b41---pugipopagaziwewesu.pdfIn PDF document text
    • http://suriyedostlukdernegi.org/image/files/16916246740.pdfIn PDF document text
    • http://contextuae.com/resimler/files/rirofijumegozazal.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/f18492616da3e5ec44cebc9accd3686b/siput.pdfIn PDF document text
    • http://bajkolandia-leszno.pl/userfiles/file/gixidanuzanasolefinetavin.pdfIn PDF document text
    • http://www.barrettmotors.com.au/templates/admin/js/kcfinder/upload/files/tarenufikawamabepisalor.pdfIn PDF document text
    • http://vishwkarmaenterprises.com/webroot/img/userfiles/files/90115358806.pdfIn PDF document text
    • http://vce34.ru/attachments/file/zapoxipewagi.pdfIn PDF document text
    • https://monamifrance.com/FileData/ckfinder/files/20220204_17FE30D5FA4C5C1A.pdfIn PDF document text
    • http://embauchecadre.com/kcfinder/upload/files/81424031894.pdfIn PDF document text
    • http://www.kotolantopeni.cz/files/76594095054.pdfIn PDF document text
    • http://dotbamboo.com/file_media/file_image/file/tosejaluvutojikivegilu.pdfIn PDF document text
    • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/kp4bphb3909jvtu4ootv84t5n8/71750894721.pdfIn PDF document text
    • http://www.gyndoktors.de/ckfinder/userfiles/files/83162746574.pdfIn PDF document text
    • http://fence-alarm.com/userfiles/files/xemizubigisekejono.pdfIn PDF document text
    • https://3eyamaichi.com/upload/ckfinder_temp/files/20220203020829.pdfIn PDF document text
    • https://cleanenergy.mn/uploads/files/23474195165.pdfIn PDF document text
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16164ce18bd1c1---87659925859.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/1616b65b636569---46520912824.pdfIn PDF document text
    • https://sportuna.be/ckfinder/userfiles/files/26629729599.pdfIn PDF document text
    • https://ags-car.com/upload/files/95121756400.pdfIn PDF document text
    • https://questyme.com/userfiles/file/74283195470.pdfIn PDF document text
    • https://centralnanaimo.gocascadia.com/images/cms/file/gozegonegimaluwumeno.pdfIn PDF document text
    • http://movitecnic.fr/ressource/site-image/files/68730224359.pdfIn PDF document text
    • http://cosmik-kinoteatr.ru/sadm_files/16739221661.pdfIn PDF document text
    • https://garmin1.ddbseven.cl/userfiles/file/puwatenatimovotatomum.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_off0004285d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004285d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004285d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4285D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00043f78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43F78 20020 bytes
SHA-256: cfd66ea95619ee1bb5ed358210eda376be1c95615a064ad7b7fded3be1e455a2
font_02_sfnt_off00047483.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47483 10456 bytes
SHA-256: 74f5cf3d265284129f935424019eb4ce1314da61a771a47811840fae0ffa9044