Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fe8cfacd49d5bc0…

MALICIOUS

PDF

80.6 KB Created: 2020-12-30 17:43:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: e6565190ff701760cae548baa4fbe4fe SHA-1: 718cd768ce6b3f2669394cd6de4f46b407631e95 SHA-256: 5fe8cfacd49d5bc0cea9bc97ea6be73df1ee52d6180a9a8c5e859e5036e9c87d
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link to 'https://gettraff.ru/123?utm_term=advocare+24+day+challenge'. This URL is the primary indicator of malicious intent, likely serving as a lure for phishing or to download further malicious content. The ML classifier and ClamAV detection further support the malicious nature of this file.

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://gettraff.ru/123?utm_term=advocare+24+day+challenge In PDF document text
    • https://static.s123-cdn-static.com/uploads/4482636/normal_5fca6fcff2ad0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387920/normal_5f90ea9a707e7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481847/normal_5fe2ab290fb9e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474448/normal_5fc726af57cac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405181/normal_5faba5ed392bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392658/normal_5f9f8ac4cd430.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452374/normal_5fa0e02a16a1c.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzededoz/j7ifjge/zigute.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408703/normal_5febc080c2bee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468553/normal_5fbeec89163b6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489414/normal_5faffefa9b304.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373239/normal_5f8aca878b9bb.pdfIn PDF document text
    • https://cdn.sqhk.co/sexifirume/gjdjiij/airasia_live_chat_review.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/1e9e8d3f-1b2c-4929-b774-6470d475efad/7000135046.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_off0000fcf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCF0 5392 bytes
SHA-256: 5c61bce15d3e9c803dacff207a8f4b7d890f03f5acac3a3cbf0083998bbaaf8f
font_01_sfnt_off00010f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F5A 11468 bytes
SHA-256: ffdfa371ea0249839cfe018f278437903c3d5fdd25c71081e85a4efcc148527f

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