Malicious PDF — malware analysis report

Static analysis result for SHA-256 87557300cbf6771d…

MALICIOUS

PDF

376.7 KB Created: 2022-03-18 18:26:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-04
MD5: 5e12db4fb38e2d64ff012e00c3b6c0dc SHA-1: 077213fee0e20e63038b8bc49827dc6175dfc778 SHA-256: 87557300cbf6771daf896ea6520a88c60a093f156aaf061d7a15e736e98d1634
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5595

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://lazav.co.za/XSRYdR1H?utm_term=hanuman+chalisa+telugu+pdf+format PDF link annotation
    • https://palacioquintin.com/upload/editor/file/31975407849.pdfIn PDF document text
    • http://deurenhanger.nl/userfiles/file/86396541211.pdfIn PDF document text
    • http://bashtourizm.ru/uploads/files/1689935007.pdfIn PDF document text
    • http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/16205879bdaa67---fopamuzevop.pdfIn PDF document text
    • http://www.pnl.ac.id/asset/kcfinder/upload/files/bivekurudatasete.pdfIn PDF document text
    • http://n-production.com/upload/fckeditor/file/misajopamekofojisupowebow.pdfIn PDF document text
    • https://tbsva.org/Upload/files/20220210125346.pdfIn PDF document text
    • https://vnycc.com/userfiles/file/91773241971.pdfIn PDF document text
    • https://readxyz.com/wp-content/plugins/super-forms/uploads/php/files/8dba6f6baa949e0b5659e0af22c311f4/bijipulutog.pdfIn PDF document text
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16234932353448---27333034769.pdfIn PDF document text
    • https://www.retailexpert.sk/gfx/administration/js/ckeditor/kcfinder/upload/files/bogixegupupid.pdfIn PDF document text
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1621f21d492c08---8861363505.pdfIn PDF document text
    • http://birizgardenhotel.com/userfiles/file/6388558195.pdfIn PDF document text
    • https://thebottombillion.org/business_school/uploads/file/detulanututeso.pdfIn PDF document text
    • http://njbeihang.com/uploadfile/file///2022031508105564.pdfIn PDF document text
    • https://staffinghub.complifly.com/ckeditor/kcfinder/upload/files/kofolu.pdfIn PDF document text
    • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620ce587885da---wakuziwedurirujevikafuke.pdfIn PDF document text
    • http://dorinhawear.com/admin/fckeditor/editor/filemanager/connectors/php/fckeditor/editor/filemanager/connectors/php/userfiles/file/mipamuverezis.pdfIn PDF document text
    • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621e94dd4a8fa---sitapewir.pdfIn PDF document text
    • http://onmamtour.com/FileData/ckfinder/files/20220301_3353A93CBD2F0C44.pdfIn PDF document text
    • http://puntolinea.org/userfiles/files/wuzojojiposo.pdfIn PDF document text
    • https://cpo.artacademyplovdiv.com/cpo_files/file/84943224341.pdfIn PDF document text
    • https://daaeportrett.no/upload/file/safusukimumetefub.pdfIn PDF document text
    • http://idcla.net/upload/files/4777941664.pdfIn PDF document text
    • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/zigosut.pdfIn PDF document text
    • http://soskuwait.com/outscapes/admin/ckeditor/uploads/ck/files/kebasosesuvadazuret.pdfIn PDF document text
    • https://vrm.vn/kcfinder/upload/files/24149898559.pdfIn PDF document text
    • http://imobilestore.de/userfiles/file/zulozop.pdfIn PDF document text
    • http://tcpartners.vn/kcfinder/upload/files/bepugikadafub.pdfIn PDF document text
    • http://taiwan-casters.com/userfiles/file/86919919657.pdfIn PDF document text
    • https://dp-engineers.com/admin/userfiles/file/gotajorufumubofuxi.pdfIn PDF document text
    • https://harrisitalia.it/uploads/file/63701204800.pdfIn PDF document text
    • https://www.uralhelicom.com/frontend/web/js/kcfinder/upload/files/kowupukukiwe.pdfIn PDF document text
    • http://bkm-market.net/userfiles/file/xixuromokulixifidapipe.pdfIn PDF document text
    • https://inijariku.com/ckfinder/userfiles/files/91498802893.pdfIn PDF document text
    • https://sgpm.krakow.pl/aaeventy/kcfinder/upload/files/vituduk.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_off0005500f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005500f.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005500f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5500F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00056729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56729 16272 bytes
SHA-256: 0232f969c0c3ad12c221505c88611819b100f79e3882a56032b669b8446b5202
font_02_sfnt_off00057d4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57D4C 23368 bytes
SHA-256: ede1a6bb87293411338e3a752db15ee730f33b41a5d1dcd8b8bc5f82a5fcec1c
font_03_sfnt_off0005b8d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B8D1 11160 bytes
SHA-256: 7f1b4f522a6a29fe9a5bd41974a304b75b21d52c261aecebaae538d96b9a1407