Malicious PDF — malware analysis report

Static analysis result for SHA-256 552ea87dc9ff95d5…

MALICIOUS

PDF

81.0 KB Created: 2022-04-14 08:49:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: aa4bd3c46904bd2430c0f3caf86cee6f SHA-1: 308efb2010adbf8adf3f834d87970f630482c8f7 SHA-256: 552ea87dc9ff95d51d26923ccc4791df9612777698de03c593b149dc0536ffd6
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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 http://sity-luxe.ru/userfiles/file/8811374642.pdf In PDF document text
    • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/162226f6851aaa---rifedebojofajir.pdfIn PDF document text
    • https://kazedodaregiz.weebly.com/uploads/1/3/4/3/134368633/gisiweviviguwewamix.pdfIn PDF document text
    • http://vizugy.hu/uploads/files/files/dusonivipojaduzubagototi.pdfIn PDF document text
    • https://zutupowetor.weebly.com/uploads/1/3/5/3/135350992/ruxaru_labugez.pdfIn PDF document text
    • https://pidakobanaxob.weebly.com/uploads/1/3/4/4/134463411/girizixu-sozagenibid-wakebogakinosav-fodif.pdfIn PDF document text
    • https://zobatovegu.weebly.com/uploads/1/3/0/8/130873738/rozunezebaritop.pdfIn PDF document text
    • https://povijovo.weebly.com/uploads/1/3/4/4/134463476/7401703.pdfIn PDF document text
    • https://bafovulik.weebly.com/uploads/1/3/1/0/131070506/gakujodufenu-gunaropex.pdfIn PDF document text
    • http://fotofolliasanlazzaro.it/userfiles/files/38192423360.pdfIn PDF document text
    • http://xn--b1agpbmdtf.xn--p1ai/upload/file/sugitiga.pdfIn PDF document text
    • http://ubytovani-horak.cz/files/File/pelajedulop.pdfIn PDF document text
    • http://carrasvilla.es/uploads/files/42642866912.pdfIn PDF document text
    • https://volenasidopawo.weebly.com/uploads/1/3/4/2/134265528/bikelidifavoxaw_nagatufa_pekowubotomit.pdfIn PDF document text
    • https://finoritibad.weebly.com/uploads/1/3/4/4/134468058/6329490.pdfIn PDF document text
    • https://lasajiboz.weebly.com/uploads/1/3/1/3/131379041/4740648.pdfIn PDF document text
    • https://tatonipek.weebly.com/uploads/1/3/4/8/134874136/bobaxipu.pdfIn PDF document text
    • https://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/0815d077e135808173ba2364cf6c9ebc/1983612073.pdfIn PDF document text
    • https://muwozijazi.weebly.com/uploads/1/3/4/7/134736858/ceca57359a39bd.pdfIn PDF document text
    • http://kondicionery-domodedovo.ru/upload_picture/file/38809623924.pdfIn PDF document text
    • https://yubit.co.za/YmrXLWy8?keyword=teaching%20english%20as%20a%20second%20language%20jobs%20melbournePDF link annotation
    • http://pfmconsulting.org/survey/userfiles/files/lawowekanuxexuzeluxepevir.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_off0000c0d2.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c0d2.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c0d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0D2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d8e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8E3 16140 bytes
SHA-256: 00b1f632e8afe72716c8bcdb76b7901b56c060d1dc0f96f3f5c1b8373b85735b
font_02_sfnt_off0000ee5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5B 16864 bytes
SHA-256: a007d889358f2e27c19e01bba4ad1a97a8b54e4eadd545439d96ee0cdd0b2cd4
font_03_sfnt_off00011a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A85 11052 bytes
SHA-256: 6c15ca78f8e25030b05f9e10635b24b82d6472406002e5eb3622eb3cc733071a