Malicious PDF — malware analysis report

Static analysis result for SHA-256 7536bd0b2e1b2926…

MALICIOUS

PDF

77.1 KB Created: 2021-05-28 18:46:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7530a0c99cee70bad088335fab7bde62 SHA-1: be69a9fa96b155454be8c8f43f32d0265eedba73 SHA-256: 7536bd0b2e1b292673a5d4d08cc6c0898c73df024d1d548145ba09734f299f46
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file is identified as malicious by multiple heuristics and a machine learning classifier. It functions as a link farm, directing users to various external URLs, including one that appears to be a search result lure. The presence of numerous external links, some hosted on disposable domains, suggests an attempt to drive traffic to potentially malicious sites or engage in phishing activities. The ClamAV detection further confirms its malicious nature, flagging it as Pdf.Phishing.Trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://kuzutuzo.ru/strik?utm_term=is+miraculous+ladybug+on+disney+plus+in+order PDF link annotation
    • https://lapefobok.weebly.com/uploads/1/3/4/6/134663543/rogikezotelid.pdfIn PDF document text
    • https://nazafusi.weebly.com/uploads/1/3/5/2/135297870/perupufe.pdfIn PDF document text
    • https://gokejaxax.weebly.com/uploads/1/3/6/0/136056436/a5d276c7bab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460060/normal_603d1f2bed3c2.pdfIn PDF document text
    • https://nabumeludofava.weebly.com/uploads/1/3/4/3/134373896/c45469d2814.pdfIn PDF document text
    • https://bazitakitavame.weebly.com/uploads/1/3/5/3/135394276/jamafapuloragiko.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403428/normal_5ff76480e19c1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370263/normal_5fcb4878366ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368954/normal_60632f6a1ddac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486354/normal_5ff25cd714a29.pdfIn PDF document text
    • https://pulivaxudifosaj.weebly.com/uploads/1/3/4/2/134235984/zavadok.pdfIn PDF document text
    • https://nugekiva.weebly.com/uploads/1/3/5/3/135322430/tawefaxiwiwiv.pdfIn PDF document text
    • https://kifakujokaw.weebly.com/uploads/1/3/4/7/134709271/a0651b.pdfIn PDF document text
    • https://paxepogemikut.weebly.com/uploads/1/3/5/3/135316128/67dce8.pdfIn PDF document text
    • https://visumosibe.weebly.com/uploads/1/3/0/8/130814065/4837738.pdfIn PDF document text
    • https://lidimegofomizut.weebly.com/uploads/1/3/1/3/131380930/490da95.pdfIn PDF document text
    • https://koreluluzoma.weebly.com/uploads/1/3/5/9/135972167/852198.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6395352-0365-4738-a7ea-dd6004c534d0/savefuxo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f217a466-a582-4801-9d4e-7e67d3af8e89/fluke_337_spare_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c28a2b5d-41c9-4fe8-a572-df152a2aa076/gulomekejutufid.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA2E 5572 bytes
SHA-256: 4524f0ad1d062033a8788cde939106b779803cf05802c975ed3f37404323e32b
font_01_sfnt_off0000fd08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD08 11776 bytes
SHA-256: 49749ec7a257af8e5685db06d9345b00779a1a74457a80ccb189e2b976187048