Malicious PDF — malware analysis report

Static analysis result for SHA-256 8797a196096ee7c1…

MALICIOUS

PDF

85.1 KB Created: 2020-11-11 21:51:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 809513b8fe4c6cc6d5d0fe522f5ecf27 SHA-1: e0a118fc99e63ef1e3b9e07481997ffd118213c2 SHA-256: 8797a196096ee7c1b5539ec0931ac737a131f44f67f795489f9046defe070edc
154 Risk Score

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 embedded URL 'https://ggtraff.ru/123?utm_term=the+period+from+which+a+product+begins+production+as+raw+materials' is the primary indicator of malicious intent. While no scripts were extracted, the PDF structure and the malicious URL strongly suggest a phishing or malware delivery 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
  • 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/123?utm_term=the+period+from+which+a+product+begins+production+as+raw+materials In PDF document text
    • https://cdn-cms.f-static.net/uploads/4410678/normal_5f93d0f628e0b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455898/normal_5fa73c2258807.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416154/normal_5f9bae1aa4b09.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377401/normal_5f8c28a398ae7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369334/normal_5f880ac73165f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369502/normal_5f911c0dc6fbc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393752/normal_5f96221f41be0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415937/normal_5f9f87c43b687.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/padoragog/carti_politiste_gratis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e5a6d46-6c75-4e4f-9743-1e1d6ccceb18/fepufej.pdfIn PDF document text
    • https://s3.amazonaws.com/remufuzu/livros_aprender_frances.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/hotmail_sign_up.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/tisolenozadowotom.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_off00010c3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C3B 5748 bytes
SHA-256: ffed6305030011c805df159b6df85638f8bab5a96e7a67793e319de203d6da4d
font_01_sfnt_off00011faa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FAA 11524 bytes
SHA-256: 8a33d355dc13ee82d75971f18df5b7ce9f441fbf4610dff5551ea7d3f069df4a

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