Malicious PDF — malware analysis report

Static analysis result for SHA-256 84728a5822c1a617…

MALICIOUS

PDF

147.7 KB Created: 2022-03-14 19:00:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-05
MD5: 6ef0ac6603852a467d57477348d0eb40 SHA-1: 8220e0d3b42b0dd7a3f0b6e3a31195cd2e708550 SHA-256: 84728a5822c1a617403cc2fc9a2d38b522a4739c438680bf114edc0c6871b3c2
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://colod.co.za/XSRYdR1H?utm_term=chatrapathi+audio+song++masstamilan PDF link annotation
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fdbbeea6ae4---77936792213.pdfIn PDF document text
    • http://gabinetortodontyczny.eu/userfiles/file/63382606339.pdfIn PDF document text
    • http://www.contal-farmer.com/uploads/files/69087244886.pdfIn PDF document text
    • http://nhasachconggiao.com/luutru/files/jabim.pdfIn PDF document text
    • https://webneel.com/sites/default/files/images/blog/fckfile/5004185247.pdfIn PDF document text
    • https://rhkapadia.org/Admin/plugins/kcfinder/upload/files/84504682583.pdfIn PDF document text
    • http://giraf-tour.com/kcfinder/upload/files/wupavisifuxariwe.pdfIn PDF document text
    • http://realtor-madrid.com/uploades/fckeditorfile/83619547448.pdfIn PDF document text
    • http://velkoobchod-man.eu/ckfinder/userfiles/files/32322273308.pdfIn PDF document text
    • http://hengelo.scholenkeuze.nl/UserFiles/files/vapawunoxevuwaruwibifitef.pdfIn PDF document text
    • https://alajuusa.ee/media/contents/file/tasas.pdfIn PDF document text
    • https://bolahijau.com/contents/files/gidonegatagevonomivetexi.pdfIn PDF document text
    • http://electronicascanaresas.com/kcfinder/upload/files/lazelixewesasonutita.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16225aaa079cb6---14743762545.pdfIn PDF document text
    • http://royalgoodviewresort.com/Uploads/file/xobakaxapikudijerexoxeze.pdfIn PDF document text
    • http://forti.in/userfiles/file/78358749080.pdfIn PDF document text
    • http://volker-issmer.de/userfiles/file/62179395442.pdfIn PDF document text
    • http://elmakoleji.k12.tr/public/kcfinder/upload/files/wojimomitepoji.pdfIn PDF document text
    • http://zrdb-drogbud.pl/Upload/file/96192639495.pdfIn PDF document text
    • http://familie-schiecke.de/images/file/53671124032.pdfIn PDF document text
    • http://conomiya.com/images/uploadedimages/file/41660513252.pdfIn PDF document text
    • http://qianxish.com/ckfind_image/files/lipaxamudu.pdfIn PDF document text
    • https://valstybestarnyba.com/upckfinder/files/fodirapujifoz.pdfIn PDF document text
    • http://sadiqandsons.com/userfiles/files/87348640675.pdfIn PDF document text
    • http://elai.kz/upload/2022/03files/2203020051402374797saif.pdfIn PDF document text
    • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f9edfe50691---8478941361.pdfIn PDF document text
    • http://polipadel.com/userfiles/file/51911319943.pdfIn PDF document text
    • https://bentonhomebuilders.com/kcfinder/xuzaxiluzetopera.pdfIn PDF document text
    • https://abouelhoulgroup.com/userfiles/files/vugane.pdfIn PDF document text
    • http://surtek.biz/image/files/20150907_182630.pdfIn PDF document text
    • https://beldapromosyon.com/calisma2/files/uploads/tunem.pdfIn PDF document text
    • http://jpiano.net/userData/ebizro_board/file/67423103036.pdfIn PDF document text
    • http://nayyaralidada.com/alpha/ckfinder/userfiles/files/zolebopawexowokavizafibod.pdfIn PDF document text
    • http://xn--aknmedcal-wpbe.com/uploads/file/12878527693.pdfIn PDF document text
    • http://elcastillotucentrotextil.com/imagenes/contenido/files/vefikerutibirizeruwa.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_off0001df16.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001df16.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001df16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DF16 18604 bytes
SHA-256: e06f046ae14f000b67bd0235e5adcb99f0bdc61b700f13247313665286b8c997
font_01_sfnt_off00020fe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20FE9 10836 bytes
SHA-256: 7f977fb3d83b294e16bd6c10a6546a6d2ebbc3c8f2d4b37346ce428356dec248
font_02_sfnt_off0002287a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2287A 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9