Malicious PDF — malware analysis report

Static analysis result for SHA-256 82f32d59e1fbd8ca…

MALICIOUS

PDF

72.2 KB Created: 2021-02-23 17:52:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b14f7d06556c8a551c3b6b076e41cc53 SHA-1: f81942124c0f0e201768cde55446d04c887660cf SHA-256: 82f32d59e1fbd8ca0561c50217e41618ed4ca235d1b701b8994736f132b83fa5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://druttle.ru/wix?keyword=magic+lens+grammar+practice PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4445532/normal_600023bbcaf0c.pdfIn PDF document text
    • https://kominalekawer.weebly.com/uploads/1/3/1/6/131636772/ab7a7010e9.pdfIn PDF document text
    • https://jebapawobukil.weebly.com/uploads/1/3/4/5/134521284/wuxowesukuxir.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408460/normal_60296465ed1c8.pdfIn PDF document text
    • https://kumumejetosen.weebly.com/uploads/1/3/0/9/130969188/gedewixe.pdfIn PDF document text
    • https://kenafidoragakox.weebly.com/uploads/1/3/1/8/131856022/9844720.pdfIn PDF document text
    • https://dunelakanova.weebly.com/uploads/1/3/1/4/131410870/488202514.pdfIn PDF document text
    • http://manthoughtswebsite.website/wixabowufevenor3hq8.pdfIn PDF document text
    • http://probmake12.xyz/kikamobjj7b.pdfIn PDF document text
    • http://bristol-yalta.run/best_minecraft_1.8.9_serversce22b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470027/normal_602c8eba22f2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372963/normal_5fe794ed76ae9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423431/normal_5fd09bd1b8a35.pdfIn PDF document text
    • https://bakofusu.weebly.com/uploads/1/3/2/3/132303024/somofegiwakuwanev.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420459/normal_601ec840eb11c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414341/normal_600da2bf3aa6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374362/normal_6034fde93a882.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dejazuvorira/kuteraked.pdfIn PDF document text
    • https://s3.amazonaws.com/bejexe/54709352435.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_off0000dd84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD84 5260 bytes
SHA-256: baa1bf1055f2e47ba8a7b3c71a37a05d3ff4b0831c1057e817fe2bd5e54463c8
font_01_sfnt_off0000ef5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF5C 10760 bytes
SHA-256: ce96d82cc2d7caa74d691458641e68100840f4155ff665014ec394e00ab90048