Malicious PDF — malware analysis report

Static analysis result for SHA-256 960d89324a29bf6b…

MALICIOUS

PDF

76.6 KB Created: 2021-01-01 21:45:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b6d8cd568bf7a6d120d9968c10104fa3 SHA-1: 9710dc63e3cffb5063ee45288e4c75250f8bd213 SHA-256: 960d89324a29bf6bb5da10319415e5ebe0ec7a3fc769ab84e64304791efd9c7e
156 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including PDF_SEO_LINK_FARM and ML_NYX_PDF_MALICIOUS, indicating a high likelihood of malicious intent. It contains a large number of external links, suggesting it's part of a link farm or phishing operation. While no scripts were explicitly extracted, the PDF structure and embedded URIs point towards malicious redirection or content delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/123?utm_term=costa+rica+bachelor+party+house
    • https://cdn-cms.f-static.net/uploads/4374963/normal_5faf655143c81.pdf
    • https://cdn-cms.f-static.net/uploads/4366047/normal_5f871d54a1770.pdf
    • https://cdn.sqhk.co/kurotevu/g68ihji/anime_stickers_pack_wastickerapps_for_whatsapp.pdf
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/5342776.pdf
    • https://static.s123-cdn-static.com/uploads/4372371/normal_5fe4d54f52bfc.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bofake/blood_meridian_cormac_mccarthy_quotes.pdf
    • https://s3.amazonaws.com/tifuwuw/happiness_1998_movie_480p.pdf
    • https://s3.amazonaws.com/retobifulipo/faxasozitol.pdf
    • https://s3.amazonaws.com/nonipesikiri/ballooning_drawings_free.pdf
    • https://s3.amazonaws.com/woneketelak/24744129375.pdf
    • https://s3.amazonaws.com/nemafu/building_bye_laws_maharashtra.pdf
    • https://s3.amazonaws.com/mujevubutukoxu/21066460102.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edce.bin
9a8793e5090d110283555bbbb10f60d6b5ac62a8630f5e6de1a7992efc5067cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDCE 5168 bytes
font_01_sfnt_off0000ff56.bin
51b38ddfa435b9d0e43a8b926c2cb8eee18a5efb668d55ba2d2e21a655f870ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF56 10800 bytes

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