Malicious PDF — malware analysis report

Static analysis result for SHA-256 4780a9e282c257c2…

MALICIOUS

PDF

74.4 KB Created: 2022-04-10 07:19:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 5756910c216d95fd3d0c96901f17de06 SHA-1: 2630fae6e078bdc1148a6989258a98552d929cbc SHA-256: 4780a9e282c257c2a63909b1ef53fa8221151599c09d6bd9ca7c3ab6ccc09cb5
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://sunuf.co.za/YmrXLWy8?keyword=2018%20kenworth%20t370%20owners%20manual PDF link annotation
    • http://china-zub.ru/userfiles/file/31774575981.pdfIn PDF document text
    • https://fezemopozopedet.weebly.com/uploads/1/3/5/3/135326879/pituv.pdfIn PDF document text
    • https://kimhanh.com.vn/kcfinder/upload/files/38248294011.pdfIn PDF document text
    • http://gysanya.com/upload/file/220322184532252639vd8z831j793w.pdfIn PDF document text
    • https://olterus.com/contents/files/doxefuginonuwakovasageduk.pdfIn PDF document text
    • https://fivepixulata.weebly.com/uploads/1/3/4/7/134747110/lizupig.pdfIn PDF document text
    • http://julianina.de/upload/file/paxigifuwimubolugef.pdfIn PDF document text
    • https://mozimokitazipa.weebly.com/uploads/1/3/1/4/131407977/750884380.pdfIn PDF document text
    • https://biholka.cz/uploades/userfiles/file/delatupubutometi.pdfIn PDF document text
    • https://i-triada.net/upload/files/9526535011.pdfIn PDF document text
    • https://vejegiraforid.weebly.com/uploads/1/3/4/3/134311029/d57c713173.pdfIn PDF document text
    • https://golofoven.weebly.com/uploads/1/4/1/3/141362167/9240253.pdfIn PDF document text
    • http://alacarte-grafik.de/userfiles/file/12824394366.pdfIn PDF document text
    • https://dolufinome.weebly.com/uploads/1/3/5/3/135330980/8927721.pdfIn PDF document text
    • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/36dce7b88ba327f2c6e0746020e21846/29760296187.pdfIn PDF document text
    • http://www.jasfec.com/imgs/uploads/5665343885.pdfIn PDF document text
    • http://bluebirdcanada.com/FileData/ckfinder/files/20220305_17DD97F7AA4E6B9A.pdfIn PDF document text
    • http://resetimpianti.it/reset/public/file/80696232192.pdfIn PDF document text
    • https://susominen.weebly.com/uploads/1/3/4/7/134714937/4287281.pdfIn PDF document text
    • http://baovethanglongmb.com/upload/files/7149664813.pdfIn PDF document text
    • https://martabaktelor.com/contents/files/kaludikamixuge.pdfIn PDF document text
    • https://zomijozefabeten.weebly.com/uploads/1/3/4/6/134636393/3d2f22cdf55fd0.pdfIn PDF document text
    • https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/81d7ff68f28088727517b36aedeebd8a/68593490220.pdfIn PDF document text
    • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/27eba9229342686abc01b9d066d96557/26505828234.pdfIn PDF document text
    • http://wyadonline.com/userfiles/file/71933878455.pdfIn PDF document text
    • https://vabinatetitiloj.weebly.com/uploads/1/3/1/4/131438676/mowupasotom.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_off0000ba7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA7D 17324 bytes
SHA-256: 6af519a9e401087166c96bb2ef4f0213c4d7d4a0a1f3256eb834ef892ca9696a
font_01_sfnt_off0000e762.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE762 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000ff79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF79 11184 bytes
SHA-256: e791d9eeac12e23c1b6b7c01a2467af73eecef3b5f8a3ec859371999296b8d7c