Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d3fa418a3ef7d3f…

MALICIOUS

PDF

73.8 KB Created: 2022-04-07 02:05:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: 9455191cc45ba80fc63f03415b94561d SHA-1: 284dea8c8c03c4fb61d199bec751914d46829e3a SHA-256: 5d3fa418a3ef7d3fd61046b769bb535c1080775573c4d0f1ea9c5dbe2d332155
186 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
  • 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://nrsa.tj/nrsa_system/ckeditor/kcfinder/upload/files/fozopuru.pdf In PDF document text
    • https://pabedimulexi.weebly.com/uploads/1/3/1/6/131606760/kabidasew_folexeruj.pdfIn PDF document text
    • https://wiercenie-studni24.pl/files/files/dilaxuvadekonawerufam.pdfIn PDF document text
    • http://www.bioderko.chodziez.pl/kcfinder/upload/files/bidezene.pdfIn PDF document text
    • https://successstudio.net/userfiles/file/lisamodixikopudon.pdfIn PDF document text
    • https://debagodijif.weebly.com/uploads/1/3/0/9/130969595/muvax.pdfIn PDF document text
    • https://zexujezorem.weebly.com/uploads/1/3/5/3/135327377/dasuji.pdfIn PDF document text
    • http://wsp.pl/userfiles/file/miliseve.pdfIn PDF document text
    • https://solturism.ro/images/file/nuxekedukif.pdfIn PDF document text
    • https://numixugag.weebly.com/uploads/1/3/5/3/135324818/1375009.pdfIn PDF document text
    • https://xomupufemi.weebly.com/uploads/1/3/4/3/134322732/kelunumutivojiranoli.pdfIn PDF document text
    • http://dekogard.net/deko/veri/_files/57992030043.pdfIn PDF document text
    • https://ginarelerojafu.weebly.com/uploads/1/3/2/8/132814261/14392eca99fe0.pdfIn PDF document text
    • https://dekomowunine.weebly.com/uploads/1/3/4/6/134638227/4edeed4c4ef7.pdfIn PDF document text
    • http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16238878a1ecb4---dumolugazarobojinipovifuz.pdfIn PDF document text
    • https://vofirojaj.weebly.com/uploads/1/3/1/6/131637635/561e430f59370.pdfIn PDF document text
    • https://cncunse.com/d/files/23796852255.pdfIn PDF document text
    • https://efnnma.org/files/file/jepulowe.pdfIn PDF document text
    • https://kawotubizon.weebly.com/uploads/1/3/1/8/131871780/wurigope.pdfIn PDF document text
    • https://zenujuvevepiro.weebly.com/uploads/1/3/4/3/134317368/salibawuvelix_bofigileduw_bufalosewipepa.pdfIn PDF document text
    • https://raxopukefafifi.weebly.com/uploads/1/3/2/6/132695755/4f4a5eb4.pdfIn PDF document text
    • https://numuladak.weebly.com/uploads/1/3/4/6/134613837/tedofezavuzovo-jiparuwusekar-bepedidawew.pdfIn PDF document text
    • https://bazeliwelari.weebly.com/uploads/1/3/1/8/131857734/kenanutej-jufifanir.pdfIn PDF document text
    • https://loheb.co.za/YmrXLWy8?keyword=is%20spectra%20s1%20covered%20by%20insurancePDF 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_off0000b8fc.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b8fc.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b8fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8FC 10884 bytes
SHA-256: abbfd5200f068042ec030fa93d9a5024254c32b4494c05150342322740f3bd97
font_01_sfnt_off0000d229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD229 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000ea3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA3B 18068 bytes
SHA-256: a8177ed05112314ece2b3eb37f28fddd3c0ba04fca77498f380e875c91f0e48b