Malicious PDF — malware analysis report

Static analysis result for SHA-256 535d543d0ad761cf…

MALICIOUS

PDF

73.3 KB Created: 2021-03-22 03:54:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 25667caeaa2914ad72931e55177701e9 SHA-1: b02568705e68ac96a3f675a0a312488b51258c13 SHA-256: 535d543d0ad761cf0a59335a6340d3375d66f42336592b425144a1ad2e392b26
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xajibur.ru/strik?utm_term=what+is+the+best+star+finder+app PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4392444/normal_5fc86dd652641.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421767/normal_605421738908f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389792/normal_604d34016d79c.pdfIn PDF document text
    • http://testvvd.xyz/cuanto_equivale_un_decametro_en_metros1o7vc.pdfIn PDF document text
    • http://com-connexion.xyz/do_infinite_geometric_series_convergesqnto.pdfIn PDF document text
    • http://azules.ru/zugivekikegilelukunost0zh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469623/normal_5fcc842131474.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464869/normal_60023ad68cd2a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383445/normal_5ff9c06744732.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487625/normal_602d64dee96a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378845/normal_60256d19a587a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481676/normal_603dc5892b368.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461523/normal_6050194c4c733.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494432/normal_602caf08b5287.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404976/normal_6036b2a142451.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/f1db5b84-11b8-4149-bbbf-d248d1474318/jiwagezil.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/pijazajuwebe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b187dc6-9a7d-48f5-bd7e-8595dca12bcd/patosovoxovisepo.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/frigidaire_dehumidifier_30_pint_clean_filter.pdfIn PDF document text
    • https://s3.amazonaws.com/besafefaf/85479356545.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e01b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01B 5252 bytes
SHA-256: ea4eca699ab3a0ade5933be220cb5f0c2da5f038d00c9c56e16c51765d3fe66e
font_01_sfnt_off0000f1f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1F6 10684 bytes
SHA-256: c7b21cad4263c014c039a1ecf618816227d9d1088b98c79ab9e3977ea7ea4cd2

Open this report in the interactive analyzer, or submit your own file for analysis.