Malicious PDF — malware analysis report

Static analysis result for SHA-256 4decfca0593dbe4c…

MALICIOUS

PDF

77.5 KB Created: 2022-04-05 21:37:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 6373af95055029e63cd64d222d6e6ed8 SHA-1: 11e591c0142bdc5e4d9c68992098e6b9d089c1bf SHA-256: 4decfca0593dbe4cb97d248b8b0e034cce2e4f8112d536927a42199d63fcf638
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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://ragaz.co.za/YmrXLWy8?keyword=how%20do%20i%20connect%20my%20wireless%20printer%20to%20my%20chromebook PDF link annotation
    • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/nr949r3rjtuglcdhja58lvtrfi/tutir.pdfIn PDF document text
    • http://kgpms.org/kcfinder/upload/files/xudoposapedusowoburabono.pdfIn PDF document text
    • https://nuvomananakoleg.weebly.com/uploads/1/3/1/4/131453817/jumefarekazugirizot.pdfIn PDF document text
    • http://vikingpaint.com/user_file/file/96933256318.pdfIn PDF document text
    • http://www.tomasjelinek.com/img/pub/file/43805563146.pdfIn PDF document text
    • https://legoxadev.weebly.com/uploads/1/3/2/3/132302888/tijumibase_pegola.pdfIn PDF document text
    • http://www.xtraordinaire.org/web/kcfinder/upload/files/4216683930.pdfIn PDF document text
    • https://kabigupux.weebly.com/uploads/1/3/4/4/134442156/kozidinavunimimepef.pdfIn PDF document text
    • http://appartenvue.net/appart/upload/images/45475889823.pdfIn PDF document text
    • https://kusebavizekofuk.weebly.com/uploads/1/3/4/0/134098677/tujoxinanipemidar.pdfIn PDF document text
    • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/16233e8e1689c1---zugudef.pdfIn PDF document text
    • https://nofevezim.weebly.com/uploads/1/3/4/7/134770192/bitonexuzepem.pdfIn PDF document text
    • https://vipuwajaziw.weebly.com/uploads/1/3/5/3/135398090/bcdd235de92817f.pdfIn PDF document text
    • http://chenruichem.com/upload/files/vikefekumogunizo.pdfIn PDF document text
    • https://tazesarazuf.weebly.com/uploads/1/3/4/7/134726557/d392ff399.pdfIn PDF document text
    • https://teduminerat.weebly.com/uploads/1/3/4/6/134665194/b94fa40454.pdfIn PDF document text
    • http://cappellastudio.it/userfiles/files/36702826423.pdfIn PDF document text
    • https://www.drukwerkmax.nl/public/admin/assets/global/plugins/kcfinder/upload/files/47437431939.pdfIn PDF document text
    • http://dispensapertutti.com/userfiles/files/logusomukadijaxezubovel.pdfIn PDF document text
    • https://kakojimogik.weebly.com/uploads/1/3/0/7/130775570/2abf59f3d9bae.pdfIn PDF document text
    • https://livogubajilu.weebly.com/uploads/1/3/4/3/134374442/34cba27f724eaf.pdfIn PDF document text
    • https://bupuxikamofimap.weebly.com/uploads/1/3/4/7/134734142/a3fcd3e8.pdfIn PDF document text
    • https://gokuveseloniku.weebly.com/uploads/1/3/5/3/135309313/01b5edf2f8415eb.pdfIn PDF document text
    • http://ehomerealestate.org/images/file/63507939375.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_off0000c9f1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c9f1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c9f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9F1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE203 16896 bytes
SHA-256: c3d78415cb496f5fa3a1321a0c168029164d19ffdc47fe4bedd4c7e505deca6c
font_02_sfnt_off00010dde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DDE 11040 bytes
SHA-256: 0d35034f0451d48e04fed21a7b78bbd97834bac32ec6f270455c148fab4c6875