Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1cefaef1357999…

MALICIOUS

PDF

85.5 KB Created: 2022-04-10 10:18:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: 3bfdf37912fc2710c7c0155854d124b9 SHA-1: e0af91d00e879e18162ba1e5bb66179469a9827e SHA-256: 5a1cefaef13579997810e270b36099f48b4b29d68789d2f8d54d6c6722a48ac8
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://lazav.co.za/YmrXLWy8?keyword=enercare%20water%20heater%20rental%20repair PDF link annotation
    • http://ildong.org/sa_upload/userfiles/file/20220408004532.pdfIn PDF document text
    • https://nasipufeduralen.weebly.com/uploads/1/4/1/2/141217793/gudemid.pdfIn PDF document text
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/16208018e2d1f8---95224430428.pdfIn PDF document text
    • http://rebeccafantarchitetto.it/userfiles/files/vibewa.pdfIn PDF document text
    • http://hoteldanang.com/uploads/images/files/juninunegoraga.pdfIn PDF document text
    • https://gujijuxe.weebly.com/uploads/1/3/5/3/135326775/da5886b6358cfc.pdfIn PDF document text
    • http://missteenqueenuk.com/userfiles/file/95582495894.pdfIn PDF document text
    • http://russkayabronza.com/userfiles/file/39583875024.pdfIn PDF document text
    • http://stonepigments.com/userfiles/file/lesokilugusu.pdfIn PDF document text
    • http://asijskepotraviny.cz/files/file/61391407061.pdfIn PDF document text
    • http://doorsatyrau.com/ckfinder/userfiles/files/kubukitazimaweteb.pdfIn PDF document text
    • http://aedjtjdshbf.pretty-match.com/upload/files/48934675119.pdfIn PDF document text
    • http://faespi.com.br/kcfinder/upload/files/wisibumepuvamulu.pdfIn PDF document text
    • http://marketingnews.fr/images/file/28856961972.pdfIn PDF document text
    • http://batiment-tunisie.com/userfiles/file/9606746086.pdfIn PDF document text
    • http://angelascanu.it/uploads/file/temisuzidugolowepa.pdfIn PDF document text
    • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16207586d3566b---60460307004.pdfIn PDF document text
    • https://mandarinkinesiska.com/userfiles/file/88882326989.pdfIn PDF document text
    • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623ed497c787f---vixogovinupore.pdfIn PDF document text
    • https://beziremisolexew.weebly.com/uploads/1/3/4/6/134656792/pofukog.pdfIn PDF document text
    • https://newtrichur.com/userfiles/file/zesadajifom.pdfIn PDF document text
    • https://speedwayinfo.hu/uploads/file/14575982616.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2B5 10252 bytes
SHA-256: aa866b0394fb6379a6f8f9cb0858220b835a51450e34a0d701d0b6a16a838653
font_01_sfnt_off0000e9b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000101c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101C3 17392 bytes
SHA-256: b6f09652fccef5f94e95867e01a994f009c20f348b7b216f085c12f2bf93e3bd
font_03_sfnt_off00012f4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F4E 16144 bytes
SHA-256: fcca37035df06e555c2991ff65faa0e8497ca6423bee408ebc46b3aef925b516