Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c2992f84c10ff6a…

MALICIOUS

PDF

67.7 KB Created: 2020-11-19 06:55:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 59dc0c1f4191f4e8203ad3d4aa9e81c3 SHA-1: 2a49e49d84a438ac0c4d3c85e1faf61c4da32c28 SHA-256: 7c2992f84c10ff6a1f4035d79b3d3287201596db091e1460f3758f77a2cb44f5
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is 'https://ggtraff.ru/strik?utm_term=s%25C3%25A9quence+g%25C3%25A9ographie+cycle+3'. While no scripts were explicitly extracted, the ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/strik?utm_term=s%25C3%25A9quence+g%25C3%25A9ographie+cycle+3 In PDF document text
    • https://xovozenoz.weebly.com/uploads/1/3/4/3/134348708/ronigamid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387573/normal_5f922dcc01f70.pdfIn PDF document text
    • https://vevejeda.weebly.com/uploads/1/3/0/7/130776099/xopevaxeluvakik.pdfIn PDF document text
    • https://wumibopoz.weebly.com/uploads/1/3/4/5/134511789/08f533ad85.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/ff06dfdf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/sword_art_online_episode_25_english_dub.pdfIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/mann_hopkins_cinema_6.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efdb76df-2819-4405-ba89-c454c56d878c/40113294488.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/nilotunutev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa02bc21-9836-4180-b299-d6acd1029a35/fukub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c991449-d443-4012-afd4-d8338348d412/mibujuxa.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/52481289786.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bfd289e-7b45-48d2-a468-e6dd15567b90/imanes_artificiales_como_se_obtienen.pdfIn PDF document text
    • https://s3.amazonaws.com/febopa/ronojijufujebulerulatojer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/727f2c79-a3f9-4e5f-b1f4-99abb66b3353/29183735274.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_off0000c896.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC896 5652 bytes
SHA-256: 56fd7df0638c3fc5371689aedaff3697c66f26ebea13db5f4e7b3471061f79f9
font_01_sfnt_off0000db93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB93 11764 bytes
SHA-256: cb0418fbde4595748bff36a318126ae634f09793869c10b6a08deb7932fd616c

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