Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a136d8b55e1897e…

MALICIOUS

PDF

82.8 KB Created: 2022-04-14 06:37:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: 7d8b5935c3767702ce8967c9b30a3a3a SHA-1: 72406d5a828bca1bc1a78fa2c23333c76453e6cf SHA-256: 5a136d8b55e1897e44a11bc96901522f016fc5fde402bd7f9de89b679a428a27
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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://loheb.co.za/YmrXLWy8?keyword=mercruiser%204.3%20alpha%201%20prop%20size PDF link annotation
    • http://proxima-design.cz/files/file/35471000801.pdfIn PDF document text
    • https://absolutefusionworkout.com/userfiles/files/14394230681.pdfIn PDF document text
    • https://jejenami.weebly.com/uploads/1/3/4/6/134684972/d3ef63664fff27.pdfIn PDF document text
    • https://lavazelowima.weebly.com/uploads/1/3/4/3/134316744/5594114.pdfIn PDF document text
    • https://biwugina.weebly.com/uploads/1/3/1/1/131163984/8460587.pdfIn PDF document text
    • http://lica-mpt.it/userfiles/files/5049177495.pdfIn PDF document text
    • http://cidadania23pr.org.br/ckeditor/kcfinder/upload/files/julunovumuj.pdfIn PDF document text
    • https://odszkodowania.company/files/files/33114048537.pdfIn PDF document text
    • http://ambulanceservice.pl/userfiles/file/xelodetejuvuzanip.pdfIn PDF document text
    • https://retizulavupax.weebly.com/uploads/1/3/4/6/134653187/9846742.pdfIn PDF document text
    • https://burkina-businessschool.com/business_school/uploads/file/nijuzodik.pdfIn PDF document text
    • http://gemeinschaftshaus-grossmuss.de/demo/admin/editor/kcfinder/upload/files/pedosune.pdfIn PDF document text
    • https://deserekinubolid.weebly.com/uploads/1/3/4/3/134319780/7957191.pdfIn PDF document text
    • https://33mobility.net/uploads/files/kawijorufop.pdfIn PDF document text
    • http://energy-partner.pl/kcfinder/upload/files/lukaxefe.pdfIn PDF document text
    • https://lenudigibelap.weebly.com/uploads/1/3/7/4/137499492/d3623c0cb.pdfIn PDF document text
    • http://connectcontrol.net/files/userfiles/files/23921907173.pdfIn PDF document text
    • https://bexajaburise.weebly.com/uploads/1/3/5/3/135345802/08342de1cda642.pdfIn PDF document text
    • http://www.barbantie.com.br/admin/plugins/ckeditor/kcfinder/upload/files/jaxebaveranipevabageg.pdfIn PDF document text
    • https://amata.org.uk/ckfinder/userfiles/files/6258965934.pdfIn PDF document text
    • https://jajugroup.com/ckfinder/userfiles/files/20308159792.pdfIn PDF document text
    • http://tratyfa.com/public/ckeditor/kcfinder/upload/files/jopiwujujimavusi.pdfIn PDF document text
    • https://xosofanukofupa.weebly.com/uploads/1/3/4/8/134879033/1539460.pdfIn PDF document text
    • https://rititebavoxufi.weebly.com/uploads/1/3/4/7/134705535/tebafabitoxukal.pdfIn PDF document text
    • http://oxigensupplies.com/shipinc/userfiles/files/kininiw.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCAE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f4c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4C5 10788 bytes
SHA-256: bcd326b15de6f94c3afae8f0f6dc3d935b9f8ed7ea641e0396f90afc27d8b0f2
font_02_sfnt_off00010ddb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DDB 17844 bytes
SHA-256: 04843595561fb6c3ba7836bf092a38fc04bb632ab29f1f448345e6a1a44ad5e1