Malicious PDF — malware analysis report

Static analysis result for SHA-256 270beebe80e00b01…

MALICIOUS

PDF

64.7 KB Created: 2020-12-14 16:59:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: f8ab01729adfc183027c6b92c2a5a6c1 SHA-1: e71e0e6bde548b6a39a2ee2259f8e07bd0b782de SHA-256: 270beebe80e00b011444b9a54828f6acda007ea61c7f8ffad8fe171217f1e82f
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, 'https://trafficel.ru/strik?utm_term=soccer+stars+hack', is presented in a context suggesting a lure for a "soccer stars hack", which is a common phishing tactic. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect the user to a potentially harmful external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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://trafficel.ru/strik?utm_term=soccer+stars+hack PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4401518/normal_5fa18b413aafb.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/45d9c807-ca08-4d8c-9f1b-79c637335fbe/bnr__mnr.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc10b9cab79f442f22a6952/t/5fc98d0b9bc93d20d9a608b0/1607044372628/58629766724.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5df1d127-1b12-407e-a8f4-79fe52ccf1b5/the_message_to_the_blackman.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe18f8bc819f1cf4a0db92/1606293754167/xulaguniluxetemoron.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3616d81-b0a7-48a9-8748-1b93c53b4543/barilla_marinara_sauce_lasagna.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a0a2d4f-7e48-4543-bc31-e2ee30e0c2e7/hamilton_career_center_seneca_sc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a3005bb-eaa5-4923-a0fd-c8f1268a2f65/sew_what_pro_software.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/51553397608.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_off0000c424.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC424 5024 bytes
SHA-256: 75eb190ae8adde5836435654fd0645eda147f6379fe3624b985bf19f25c79da6
font_01_sfnt_off0000d52c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD52C 9872 bytes
SHA-256: 85c3d2aec5a5e6fd964f83b6ccf77979249038505fab80990c740fbc02a9327c