Malicious PDF — malware analysis report

Static analysis result for SHA-256 72c36ced67b80c70…

MALICIOUS

PDF

69.8 KB Created: 2020-11-11 19:04:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: b317a4fd62ad9a5addb50cc6d770b2f5 SHA-1: d537361c4e5d7449166823b146929cf5bbb3a67e SHA-256: 72c36ced67b80c7057ca4ea3a45aa4f878e242038d8c56aa6eb6f35167668ac0
96 Risk Score

Malware Insights

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

The PDF file contains a URL that redirects to a phishing page, as indicated by the PDF_URI heuristic and the ML classifier. The document body, though heavily obfuscated, contains keywords related to battery chargers, suggesting a lure. No scripts were extracted, but the presence of external URIs and the ML detection strongly suggest a phishing attempt.

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://traffnew.ru/strik?utm_term=lester+36+volt+battery+charger+parts PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4376105/normal_5f96bf7adcaa5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449965/normal_5fa016979d39f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381544/normal_5fa7613e56f21.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368750/normal_5fa771ba05d0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374373/normal_5f8a4dd435262.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369336/normal_5f8f89273c4bd.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/2dd671fa-1bf8-4e82-a269-31d5b5055d1b/ximasewedipusabapevavipe.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/genius_g3500_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/jekidofakaditilubulexatas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d133417-0a9f-45c8-828d-966cecf08a77/punupobune.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/27988584537.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/66664015747.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/marathi_bhakti_geet_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/788698fb-abff-456e-be70-d7100f29e433/mw3_hack_ps3.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_off0000cfc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFC0 5756 bytes
SHA-256: 148a3e05c10cdb2d3dc2b6da4eab320dedd5822a5d0f82f43d3b7bbe2bea90aa
font_01_sfnt_off0000e35f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE35F 11472 bytes
SHA-256: f2d70388bf970b6346601e3d581086c23f3af52261cf5780c079e9f0cf43d7d4

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