Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5da88d6fd0a19f6…

MALICIOUS

PDF

103.2 KB Created: 2022-02-02 07:54:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: 798b6197c8fafe2c425650b5006a1dbd SHA-1: 6fe54b507ee638aae58d63de57c8a2e0588cc384 SHA-256: c5da88d6fd0a19f6fb40d3fafbd183ded1890253aeb4902e3c0ad95e48920295
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9777

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://norin.co.za/XSRYdR1H?utm_term=assembler+plusieurs+pdf+adobe+reader PDF link annotation
    • https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/lc5lksovukt9d6ncmeq78diu70/nufekazojalowajajeba.pdfIn PDF document text
    • https://cpaf.gdmnw.com/kcfinder/upload/files/tazuxawirinolubonisad.pdfIn PDF document text
    • https://ecoledesgourmets.com/userfiles/file/9486712652.pdfIn PDF document text
    • http://vipdiler.ru/files/file/98794252584.pdfIn PDF document text
    • https://www.au-holding.ru/kcfinder/upload/files/kibopajirafapida.pdfIn PDF document text
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/u3ii27qstsoind01v1liu9t60h/sozupowiwavomobotekib.pdfIn PDF document text
    • https://yp05.com/_UploadFile/Images/file/xibuxavik.pdfIn PDF document text
    • http://www.bash.cl/media/file/miwabegepujo.pdfIn PDF document text
    • http://www.psoealora.es/ckfinder/userfiles/files/lajotonanojefif.pdfIn PDF document text
    • http://unsersohn.com/images/file/ribowojuvepiruru.pdfIn PDF document text
    • http://leoclubmarsala.it/userfiles/files/jejezagijagazorex.pdfIn PDF document text
    • https://nepalimodelagency.com/userfiles/file/mubeno.pdfIn PDF document text
    • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1617a2467b8294---mokaduwazubuwijibe.pdfIn PDF document text
    • https://coprose.com.mx/kcfinder/upload/files/3486667578.pdfIn PDF document text
    • https://irrisyst.eu/files/file/ripubopomadexaduragaxujo.pdfIn PDF document text
    • http://mptech.vn/ckfinder/userfiles/files/rakepujadozoxis.pdfIn PDF document text
    • http://www.sindcomerciarioscs.org.br/adm/kcfinder/upload/files/gibevigidimusuzurovup.pdfIn PDF document text
    • https://agronlogistics.com/userfiles/files/31876769549.pdfIn PDF document text
    • http://ryukatsu.com/userData/board/file/tajulavupiw.pdfIn PDF document text
    • http://cieplej.pl/imgturysta/file/tijalilunaresibeteri.pdfIn PDF document text
    • http://pass38.com/images/contentimages/files/84553741480.pdfIn PDF document text
    • http://pc580.cn/upload_fck/file/2022-2-2/20220202123253420720.pdfIn PDF document text
    • http://www.prunay-en-yvelines.fr/ckfinder/userfiles/files/pekerifolosowalimal.pdfIn PDF document text
    • http://abdon.madteam.net/ckfinder/userfiles/files/fewes.pdfIn PDF document text
    • https://hunglivet.com/uploads/files/202112110424535246.pdfIn PDF document text
    • http://eau-msu.ru/ckfinder/userfiles/files/pixapudikoseledigam.pdfIn PDF document text
    • https://alyansdugunsalonu.com/userfiles/files/98361060154.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_off00013272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13272 10680 bytes
SHA-256: 3cce198e3d4e6b210827df9033eba8374e246274226e2dfee39a60684f0fec1a
font_01_sfnt_off00014aa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14AA8 17920 bytes
SHA-256: 3f3f24dc8911f6cb4a3731369cbec70ba539772073c9d503fe95b3fd2fba9e89
font_02_sfnt_off000177ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x177AB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9