Malicious PDF — malware analysis report

Static analysis result for SHA-256 7621a3e899be5044…

MALICIOUS

PDF

77.5 KB Created: 2021-01-17 06:39:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: c7ef0307e62f17747ea1e71e16bdfe4c SHA-1: 82702593f796af6295bb03c683eedf0dd8b33841 SHA-256: 7621a3e899be504459849449469834da59d0054f6bbf1fe877a3d9a3d5749015
154 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The embedded URL `https://cctraff.ru/123?utm_term=execution+only+broker+ireland` is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the malicious URL strongly suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

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://cctraff.ru/123?utm_term=execution+only+broker+ireland In PDF document text
    • https://cdn-cms.f-static.net/uploads/4368495/normal_5f9be8a10f834.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366642/normal_5f897574d4a1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378425/normal_5fb32d9520ae6.pdfIn PDF document text
    • https://kesetemokeze.weebly.com/uploads/1/3/2/6/132682820/befagetibasuj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484999/normal_5fb3674eda02b.pdfIn PDF document text
    • https://dozumudokasalog.weebly.com/uploads/1/3/4/9/134902229/682c512872cf14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408009/normal_5fa464acb653c.pdfIn PDF document text
    • https://xemexavowud.weebly.com/uploads/1/3/1/8/131857479/fefozufidiv.pdfIn PDF document text
    • https://cdn.sqhk.co/wodabumamuv/rjgvjgI/dawnblade_build_2020.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/wupagivoz/android_adb_driver_windows_10_64_bit.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_off0000f12e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF12E 5084 bytes
SHA-256: e6f93ae51668366cafc0e49ef29cb685dff80644cc83010496471362f8ee1a68
font_01_sfnt_off00010297.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10297 11404 bytes
SHA-256: 56381be71b5fc4b9f411bf9f1bda28ffab38d30ff3f6ffca471906b3a8ba6268

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