Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4fb3c03ff1284ad…

MALICIOUS

PDF

90.4 KB Created: 2022-04-19 16:36:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: e2fa71614fdabdaf1bedb1e1a32481e4 SHA-1: c46b75f807660c96fc5b7d745a2849edd02003d0 SHA-256: a4fb3c03ff1284ad985cac5e6916cfeaf3f8cafdd9eeebfa856a71c73d071156
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • 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 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://loheb.co.za/YmrXLWy8?keyword=technical%20report%20writing%20sample%20for%20computer%20engineering%20students PDF link annotation
    • https://tufuziboserivu.weebly.com/uploads/1/3/1/6/131636644/c1f26871c599.pdfIn PDF document text
    • http://sial.pl/galeria/file/91806508543.pdfIn PDF document text
    • https://sogegagep.weebly.com/uploads/1/3/4/6/134687839/5947878.pdfIn PDF document text
    • http://akvari-um.ru/userfiles/file/pokilu.pdfIn PDF document text
    • https://wujadadi.weebly.com/uploads/1/3/1/0/131070572/ca8c7e4597cbac4.pdfIn PDF document text
    • https://mixajogidevo.weebly.com/uploads/1/3/0/9/130969427/0132dd5e9a2f.pdfIn PDF document text
    • http://czyxchem.com/upload/files/63108258203.pdfIn PDF document text
    • http://barexkft.hu/userfiles/file/mubizitemokevutunidaliwas.pdfIn PDF document text
    • https://bcinterior.gocascadia.com/images/cms/file/7153031015.pdfIn PDF document text
    • https://nagalijas.weebly.com/uploads/1/3/1/3/131398542/e1491222d4462a7.pdfIn PDF document text
    • http://kleinschadenexperte.de/userfiles/file/vokiwudib.pdfIn PDF document text
    • https://buwuxebukiz.weebly.com/uploads/1/3/1/6/131606134/totaf.pdfIn PDF document text
    • http://wawabed.pl/uploads/userfiles/file/84774041613.pdfIn PDF document text
    • https://eternalbliss.net/file/miwufiwabimijow.pdfIn PDF document text
    • http://prmakeup.com/Image/files/jokif.pdfIn PDF document text
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/162292fb073c68---murufizakesuxijezubitugan.pdfIn PDF document text
    • https://inovadmin.pavicer.pt/uploads/files/93043889517.pdfIn PDF document text
    • http://sinostandards.net/upload/files/viluwisuzez.pdfIn PDF document text
    • http://kedehg.com/ckfinder/userfiles/files/46502366686.pdfIn PDF document text
    • https://bednidhitraders.com/userfiles/file/tuloredojowazomip.pdfIn PDF document text
    • https://cailux.lu/userfiles/files/talibexoperupomerudujit.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_off0000fd25.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000fd25.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD25 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11537 16764 bytes
SHA-256: e2519d12932c3a7d7f8d5b544e7b49b50d8d4e60d3a0837abe7c9798757fbd01
font_02_sfnt_off000140cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140CF 11216 bytes
SHA-256: 5488674f63ce0325ead9a98d21699c63e92b62f98dc55a414ec9d9d47da84724