Malicious PDF — malware analysis report

Static analysis result for SHA-256 93cda257a82122a2…

MALICIOUS

PDF

79.8 KB Created: 2022-04-09 09:32:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-13
MD5: ceb1a03f78ab7eba693a5ac8dcb72b2f SHA-1: 272d6bb72027cb21af45c7dfbd1cd7f9297643dd SHA-256: 93cda257a82122a2982d745ce4774f87abe25e90ec4b1f837d6bb2019ee0ca1c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://fezuwujazu.weebly.com/uploads/1/3/5/3/135347069/tujelarubaxikiw.pdf In PDF document text
    • https://vimedijo.weebly.com/uploads/1/3/1/6/131606629/bawebu.pdfIn PDF document text
    • http://grimastone.ru/files/bipikoredejigududikisu.pdfIn PDF document text
    • https://hometutorsdelhi.com/userfiles/files/toxuvibufiwutib.pdfIn PDF document text
    • https://xotonibesil.weebly.com/uploads/1/3/1/4/131407892/zenod.pdfIn PDF document text
    • https://csn-alliance.com/data/files/logujonavasubulije.pdfIn PDF document text
    • https://guzonodet.weebly.com/uploads/1/3/4/7/134724569/jaroguz-gesef.pdfIn PDF document text
    • http://goupcrm.com.br/kcfinder/upload/files/juxagewopaxowedusagogenab.pdfIn PDF document text
    • https://jirorenuges.weebly.com/uploads/1/3/0/8/130874518/eb7a580b9.pdfIn PDF document text
    • https://bisodipodur.weebly.com/uploads/1/3/4/5/134592442/4244089.pdfIn PDF document text
    • https://korexabareruwa.weebly.com/uploads/1/3/2/6/132680962/1341242310.pdfIn PDF document text
    • https://pekesasopalono.weebly.com/uploads/1/3/4/5/134505129/c625408ccaf8.pdfIn PDF document text
    • https://rorefodelubo.weebly.com/uploads/1/3/1/4/131452934/1651528.pdfIn PDF document text
    • http://www.clc-engineering.com/siteuploads/editorimg/file/36732579301.pdfIn PDF document text
    • https://bawefuravejegi.weebly.com/uploads/1/3/1/4/131438418/a0454bb46849ac.pdfIn PDF document text
    • https://mupamibamaximas.weebly.com/uploads/1/3/1/3/131379846/merixu.pdfIn PDF document text
    • http://tmkb.org.tr/ckfinder/userfiles/files/mujofubusidabolasa.pdfIn PDF document text
    • https://yoyep.co.za/YmrXLWy8?keyword=breakfast%20at%20tiffanyPDF link annotation
    • http://produkty.promiennik.pl/resources/files/40688485607.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_off0000d33b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d33b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d33b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD33B 10912 bytes
SHA-256: ed82d6af9437de1f570acefedf6332ffa75d5154a329832f4b43ae5c6006cff8
font_01_sfnt_off0000ecb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECB0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000104c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104C2 17048 bytes
SHA-256: 29bef17488a5b59499ebee4304d5844abb48cfaf049125bc7874d481efff41d3