Malicious PDF — malware analysis report

Static analysis result for SHA-256 55200dbe7dd8428c…

MALICIOUS

PDF

116.6 KB Created: 2022-04-20 14:49:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: f3e6932b35ffd075e48aa0c5bb0d87ef SHA-1: 91ee45653ed45ffe79b10c858ebef625c7ea46db SHA-256: 55200dbe7dd8428ced1bb2c7d03b74c2f4886986b752d6742e09f23d80bca641
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9886

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://sunuf.co.za/YmrXLWy8?keyword=chinese%20characters%20name%20in%20korean PDF link annotation
    • http://nirmalapublicschoolerumely.com/userfiles/file/9384690504.pdfIn PDF document text
    • https://kibapeti.weebly.com/uploads/1/3/4/5/134515129/niwav.pdfIn PDF document text
    • https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/0fd4bec1898250d5fd503a37bad4b1d0/donobewu.pdfIn PDF document text
    • http://knshzj.com/CKEdit/upload/files/48769913701.pdfIn PDF document text
    • http://ranc.hyncice.eu/userfiles/file/5747259850.pdfIn PDF document text
    • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16224fa7045012---84889557181.pdfIn PDF document text
    • https://molejurat.weebly.com/uploads/1/3/0/9/130969116/4ad6281e2d7b94.pdfIn PDF document text
    • https://pobozopidukav.weebly.com/uploads/1/3/4/3/134384736/donuz-dogatufifo-moguderadizeded.pdfIn PDF document text
    • http://industrialdevices.in/uploads/pisowibemijariraf.pdfIn PDF document text
    • http://numberprotect.com/admin/kcfinder/upload/files/55072267477.pdfIn PDF document text
    • https://drproperty.org/userfiles/file/bewizozusimikonafetozo.pdfIn PDF document text
    • https://ponukikoruxa.weebly.com/uploads/1/3/4/3/134343798/dovelowuduba.pdfIn PDF document text
    • https://babidunilatejob.weebly.com/uploads/1/3/4/2/134266015/9144999.pdfIn PDF document text
    • https://wobosiwax.weebly.com/uploads/1/3/1/6/131607505/6414058.pdfIn PDF document text
    • http://satyamtracparts.com/userfiles/file/laluxegilifazuzax.pdfIn PDF document text
    • https://retomulivofofe.weebly.com/uploads/1/4/1/5/141500393/zugivor.pdfIn PDF document text
    • http://www.kizkulesikizogrenciyurdu.com/public/ckfinderuploads/files/49529550365.pdfIn PDF document text
    • http://msslink.ru/userfiles/files/94396236528.pdfIn PDF document text
    • https://naximoselotol.weebly.com/uploads/1/3/4/5/134581957/382382.pdfIn PDF document text
    • https://bufaxivija.weebly.com/uploads/1/3/1/3/131383981/kitus.pdfIn PDF document text
    • https://vinaxana.weebly.com/uploads/1/3/4/7/134725794/dd489d92cb6bf5.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_off00011682.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00011682.bin)

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011682.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11682 10572 bytes
SHA-256: e63916dc7631e309f50480c05f1f19daab02e8530838f40012fd4bced5873ae3
font_01_sfnt_off00012e7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E7F 20768 bytes
SHA-256: 87676ee6a05cd0b50330562a10ea62b6acea54c16f5404491597fbc7d364a02c
font_02_sfnt_off0001629a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1629A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off00017aa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17AA8 17808 bytes
SHA-256: 557b290bee9b6794ea1002c71dc8ebd6459857c41538bb7e447905b7d6923f6e
font_04_sfnt_off0001ae8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AE8E 16076 bytes
SHA-256: b79b5b783f9f2750fb1a468c37c2e1239a95587a9898e49e55e45fafda568ad2