Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc0aacaf525e2716…

MALICIOUS

PDF

77.2 KB Created: 2021-05-25 11:05:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c44e91fca943f9417f4b386c52e0acf8 SHA-1: 55670e4a4457a1b5304ee3c40e0343d5e66bc0cd SHA-256: cc0aacaf525e2716e788724a27b1224499130a5cc4878c2ec74cf16cf7ae6c37
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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://soxebez.ru/strik?utm_term=how+to+prepare+analysis+report PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4408862/normal_60236e3732d59.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493602/normal_60140317ab626.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467955/normal_5fe92696010c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368781/normal_604977f884236.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382629/normal_606098016f73d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459319/normal_5ff06e6c103e6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459062/normal_6025c566a02ce.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367959/normal_5fe38fec307aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408987/normal_6023e5d0e9908.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418178/normal_600de98e259bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476268/normal_605d8a97e48d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462341/normal_606058b670b04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458388/normal_605218f426a4a.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/23c6a609-8ccf-4f32-abf4-1fdde0cd6d89/equivalencias_de_pulgadas_a_centimetros_en_tuberias.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/manufacturer_website_drivers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c79b88c-061f-4d69-a6b2-8282b3b8addf/search_bar_google_chrome_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/segiwug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5e81938-8534-4232-b0a5-f5d688b638f6/xutogufebibexixugozonaw.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/58254433951.pdfIn PDF document text
    • https://s3.amazonaws.com/gazivemon/14512135569.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/70995985471.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_off0000f20e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF20E 4968 bytes
SHA-256: f5e400968d430832f1cbb844984db38303901cb79bf298b8fe96ed784da445b8
font_01_sfnt_off00010315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10315 10852 bytes
SHA-256: d4ea98beaba5dd053b01c358c5714217290bf5d32ea26f8d507ce0c2eb14a2df

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