Malicious PDF — malware analysis report

Static analysis result for SHA-256 5529effa23a92993…

MALICIOUS

PDF

77.4 KB Created: 2022-04-03 17:08:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 2137f266e7da5503893dd88fa148839e SHA-1: 1d4c4109f8485bf500f911092e0582a78c34f6cc SHA-256: 5529effa23a92993fe6a12686d68e6ac0fc1331c8e9c827915dc8cae69a7dce3
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 7

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://tssch.in/tssch/application/admin/uploads/file/36979664298.pdf In PDF document text
    • https://galevegu.weebly.com/uploads/1/3/4/5/134507196/bewunek.pdfIn PDF document text
    • https://casabresciani.it/uploads/file/nomiguxejosoba.pdfIn PDF document text
    • https://nozutijakowuv.weebly.com/uploads/1/3/4/3/134305587/wakumivake-domalo-rejozer.pdfIn PDF document text
    • https://longhungphat.org/Images_upload/files/pinokugelezosumadorog.pdfIn PDF document text
    • http://nahar-bd.com/assets/ckeditor/kcfinder/upload/files/nifixu.pdfIn PDF document text
    • https://tsydesign.com/userfiles/jws/files/majanu.pdfIn PDF document text
    • https://fabidarupevonu.weebly.com/uploads/1/3/4/6/134620419/306529.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/4116c823bc2dcf27fec6bf1e69559288/riwelubufumawi.pdfIn PDF document text
    • http://nguyenthaotech.com/upload/files/pemerolomudoba.pdfIn PDF document text
    • https://wutusexiradolo.weebly.com/uploads/1/3/0/9/130969471/7296862.pdfIn PDF document text
    • https://nikulagoronol.weebly.com/uploads/1/3/2/3/132303117/eb028e8ed5ee0.pdfIn PDF document text
    • http://hjhchem.com/upload/files/53958747083.pdfIn PDF document text
    • http://zbraneklapka.cz/ckfinder/userfiles/files/vexefaxadi.pdfIn PDF document text
    • https://kinhdoanhvaphapluat.com/img-dn/files/kojazafidibajenezof.pdfIn PDF document text
    • https://wigomikutoji.weebly.com/uploads/1/4/1/2/141252003/8902984.pdfIn PDF document text
    • https://vesanalu.weebly.com/uploads/1/3/1/4/131482823/13a94fc106f3b8.pdfIn PDF document text
    • http://kme-kme.cz/files/file/94814810565.pdfIn PDF document text
    • https://soxotinimom.weebly.com/uploads/1/3/4/8/134883838/890d573567cf80.pdfIn PDF document text
    • https://patakobenidirok.weebly.com/uploads/1/3/0/7/130775678/3117763.pdfIn PDF document text
    • https://novitas.ro/files/gipufabidazabajixilux.pdfIn PDF document text
    • https://mevamakokuvafas.weebly.com/uploads/1/3/4/0/134040887/zavumawo.pdfIn PDF document text
    • https://yoyep.co.za/YmrXLWy8?keyword=how%20to%20reset%20the%20oil%20change%20warning%20on%202008%20dodge%20avengerPDF 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_off0000c91f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c91f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c91f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC91F 11240 bytes
SHA-256: 9a2e85907b64c46d90f2e7e161e26e0f2901af051c040c95ffb658ddbb2aed01
font_01_sfnt_off0000e354.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE354 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000fb66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB66 16848 bytes
SHA-256: f1dcd4ac82df671c328481c4db751cd866539645416a7bf131fa881f10964306