Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07cfd3874bddd1c…

MALICIOUS

PDF

73.8 KB Created: 2022-04-21 17:33:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 5cb492a7a168af38780462823ec0d2ed SHA-1: 9cbbfcf022354b8e41ce0f89600f469eee7c12b4 SHA-256: d07cfd3874bddd1c17a7b752613962dca4b7e3aa6bba7c8325ac820eef562dd9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://oxi-dental.ro/imagini_ws/vuxalisidorukusarezigi.pdf In PDF document text
    • https://konegodifoxud.weebly.com/uploads/1/3/1/3/131380175/nekapafagig.pdfIn PDF document text
    • https://vida.posilatko.cz/files/wswg/file/5099674922.pdfIn PDF document text
    • http://www.sm.ac.th/ckfinder/userfiles/files/98882212162.pdfIn PDF document text
    • http://gruppocreta.com/userfiles/files/fupiluxofeposereligop.pdfIn PDF document text
    • https://dupomosukafe.weebly.com/uploads/1/3/5/3/135387566/a9eacdde3b8aaae.pdfIn PDF document text
    • http://k-sta.kr/FileData/ckfinder/files/20220403_7787A5477502F6AD.pdfIn PDF document text
    • http://labmansour.com/app/webroot/js/ckfinder/userfiles/files/14828126055.pdfIn PDF document text
    • https://doktor-ara.com/userfiles/files/70120487312.pdfIn PDF document text
    • http://kommunikator.nu/demo/userfiles/file///90309583592.pdfIn PDF document text
    • https://lifunakejeka.weebly.com/uploads/1/3/4/3/134358873/494239.pdfIn PDF document text
    • https://batdongsandothanh.vn/luutru/files/begodililepuzuxejizekaban.pdfIn PDF document text
    • https://savremendom.com/upload/files/nuwefitozubifis.pdfIn PDF document text
    • http://drdj.friend-match.com/upload/files/90050192245.pdfIn PDF document text
    • http://midoriku.zaitakunet.jp/app/webroot/upload_images/files/28313720857.pdfIn PDF document text
    • https://bevillelecomte.ovh/ckfinder/userfiles/files/51533863492.pdfIn PDF document text
    • https://zizujegaduxopur.weebly.com/uploads/1/3/5/9/135972979/954f1f.pdfIn PDF document text
    • http://dpsszczytno.pl/photo/file/jolitelelererufa.pdfIn PDF document text
    • http://laserbeautymachine.net/d/files/roligoso.pdfIn PDF document text
    • http://hmarksltd.com/assets/ckeditor/kcfinder/upload/files/gedaza.pdfIn PDF document text
    • https://tevav.co.za/YmrXLWy8?keyword=allen%20and%20heath%20gl2400%2016PDF link annotation
    • 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_off0000ba3d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ba3d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA3D 10568 bytes
SHA-256: 40318208fad6b38c146d74c6639e989fa64f1120402cd16a395203159945d17f
font_01_sfnt_off0000d232.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD232 18988 bytes
SHA-256: f6d53b37a8441d5c054cc99caa06b12a8298f957dec18e54c7f1a136b3200f19
font_02_sfnt_off00010238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10238 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1