Malicious PDF — malware analysis report

Static analysis result for SHA-256 263554158759d907…

MALICIOUS

PDF

66.2 KB Created: 2020-12-23 15:42:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 9b2b22641abc289f81a0776e6653e2e8 SHA-1: 044e35cf11c1c34bf8885e11b34ce294e96e8789 SHA-256: 263554158759d907bde29be93e1da20b9a878d6daab0ace2ed9301ce942dc27e
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, traffking.ru, which is likely intended to lead the user to a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded malicious link suggest it's designed to exploit users through social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://traffking.ru/aws?utm_term=ecole+centrale+de+lille+formation In PDF document text
    • https://wavamabixalovag.weebly.com/uploads/1/3/4/5/134525364/7892188.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386092/normal_5fad4ef79ffc8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377381/normal_5f91f7abad249.pdfIn PDF document text
    • https://tadonajates.weebly.com/uploads/1/3/4/3/134319020/bugatibunujokologod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417995/normal_5f9a5fccb175f.pdfIn PDF document text
    • https://cdn.sqhk.co/pekebugus/je7jjcZ/29500633889.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/cef173da-bffe-4be1-bbe8-55ee112df163/2002_lincoln_navigator_engine.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/microsoft_excel_2016_gantt_chart_template.pdfIn PDF document text
    • https://s3.amazonaws.com/kovozenamofox/lododanabivix.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_off0000c257.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC257 4944 bytes
SHA-256: ac80432df83cee7ea2fc88d78b914214a414cdf40c6e19ed5face49ddfa924fe
font_01_sfnt_off0000d317.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD317 12968 bytes
SHA-256: c794a2903751e6be5ddd9f54676e88482294e9f0c4c2f461769dfc60024a327b

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