Malicious PDF — malware analysis report

Static analysis result for SHA-256 704ceb7a7324d977…

MALICIOUS

PDF

75.5 KB Created: 2021-05-14 15:12:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 11af9f5c5235b949cd706fcc42c45bd6 SHA-1: e2af5b1722d14fdc89eb8a93d3f42fe640a22d9b SHA-256: 704ceb7a7324d9774ff5a8b89baee9c03578b0fe2648b802e30d7f4cdcce8693
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that leads to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to malicious content, potentially exploiting PDF vulnerabilities or social engineering.

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://ponafet.ru/strik?utm_term=how+to+know+my+horoscope+without+date+of+birth PDF link annotation
    • http://nafigunagofadab.getenjoyment.net/26002622845.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481067/normal_600212afaa329.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472764/normal_5fd3b4d61767f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372963/normal_60176a796dbba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416789/normal_6056838d4e05a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482023/normal_5fe8301102495.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495399/normal_5fec55fd12839.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444386/normal_5fefc2649702e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366319/normal_6064c373bad50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426967/normal_6058efb040d12.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388285/normal_602f96dea073d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403274/normal_6000927be474d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wobadumiravolu.atwebpages.com/70543777210.pdfIn PDF document text
    • https://s3.amazonaws.com/visagogijulep/71405148519.pdfIn PDF document text
    • https://s3.amazonaws.com/xukirizugukugi/excel_text_to_columns_multiple_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/fenatagazise/vamerekizemiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/741d1ff9-3066-4749-b86c-cc1b3520a90f/60815292390.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93353f3f-c08e-4c52-bda3-48c24b6d663d/dell_xps_8300_compatible_ram.pdfIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/wapopisip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7fea9931-2e43-43fd-a764-b97e4cd3dbae/peavey_bandit_112_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/why_did_snape_betray_harry.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_off0000e83e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE83E 5720 bytes
SHA-256: 9415c8a80c08f0f21056437678f69e81f9a7dddc3580e9d403d7360bbd27b393
font_01_sfnt_off0000fb9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB9F 10844 bytes
SHA-256: 9bee064f718d19ecc19274bc54a4816695e73edfc7301ebe38633eca65c433df

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