Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd767a73114f3e31…

MALICIOUS

PDF

88.9 KB Created: 2021-10-05 19:28:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: be71411c961bc2d70ca3004f307b2cb8 SHA-1: 705b2d2a2b5a3e15db6bf35911c1e2373afe81d1 SHA-256: cd767a73114f3e311ddcfdd379e1b832c151ff3032b59016938287961d3330c0
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://crysiq.ru/uplcv?utm_term=shed+the+man PDF link annotation
    • https://relaxbotanika.cz/ckfinder/userfiles/files/86239586325.pdfIn PDF document text
    • http://big-blue-bus.com/pics/fotos/1/file/91609350415.pdfIn PDF document text
    • https://www.champagne-cornevin.fr/ckfinder/userfiles/files/60161674661.pdfIn PDF document text
    • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/161411d03a902e---segerovoguvuve.pdfIn PDF document text
    • http://xn--3e0b556bhrbowi6undva.com/ckupload/files/9019576138.pdfIn PDF document text
    • https://taiwan-tiaya.com/upload/tiaya_official/files/xepidasowup.pdfIn PDF document text
    • http://habitat3.eu/userfiles/files/rijatonusapefupagab.pdfIn PDF document text
    • http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ba56d44873---14395779881.pdfIn PDF document text
    • https://22importexport.com/eimages/file/92649046305.pdfIn PDF document text
    • https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/b191ff82673a5f6ad8579b6020d14878/35791167530.pdfIn PDF document text
    • http://incomsistema.ru/ckfinder/userfiles/files/dobepirok.pdfIn PDF document text
    • http://wannawwannie.pl/userfiles/file/20997728548.pdfIn PDF document text
    • https://hfbee.tw/upload/ckfinder_temp/files/20210919175319.pdfIn PDF document text
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130140812cb7---76705042543.pdfIn PDF document text
    • https://polresseluma.com/assets/ckfinder/core/connector/php/uploads/files/sifixivalelogatubofexi.pdfIn PDF document text
    • http://teleinwestor.com/userfiles/file/pimujenedemoxojigujizod.pdfIn PDF document text
    • https://h16hr15k-h19hr37urn.com/contents/files/87068389289.pdfIn PDF document text
    • http://karpatskiles.ru/store/file/finakegami.pdfIn PDF document text
    • http://bikaji.zohukum.com/ckfinder/userfiles/files/fawurisoburelo.pdfIn PDF document text
    • http://shanghaiqingchen.com/upload/files/2168110372.pdfIn PDF document text
    • http://jimsclub.net/new/board/img_tinfo/file/20210910163707.pdfIn PDF document text
    • http://mothertheresapublicschool.com/userfiles/file/7356500789.pdfIn PDF document text
    • http://oxigensupplies.com/shipinc/userfiles/files/kiduwurunosutuko.pdfIn PDF document text
    • https://deltarents.com/upload/ckfinder/files/12718632882.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_off0000f3a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3A5 10064 bytes
SHA-256: fe99fc04155ea02b8decbd2ed85407518ee9e6fb363096074168dba8f3bcd1d0
font_01_sfnt_off000109de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109DE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000121f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121F0 20056 bytes
SHA-256: e959fdeaf409f7d085851d5360298e067e5eee68b89ec8040164e01a29d3ab2a