Malicious PDF — malware analysis report

Static analysis result for SHA-256 cde5118d0430f91a…

MALICIOUS

PDF

85.2 KB Created: 2020-11-21 02:16:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 06f9ff117b606002f240dd3f98887fa2 SHA-1: d39781949b5f6fcafa02321e12331ccf9783389f SHA-256: cde5118d0430f91a423abad0601293519402632f43fd9c392b8722b9729fa328
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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=every+living+thing+james+herriot PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368978/normal_5fb016f233806.pdfIn PDF document text
    • https://wuzubetimu.weebly.com/uploads/1/3/4/2/134266391/6763657.pdfIn PDF document text
    • https://zegojipoxe.weebly.com/uploads/1/3/1/0/131069766/54e51ea0c58bdc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385038/normal_5faee7cfceadd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373243/normal_5fae2c127688a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474727/normal_5faa7a191d73d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412403/normal_5f9ab28003d5d.pdfIn PDF document text
    • https://gavawujag.weebly.com/uploads/1/3/4/3/134370084/furixijuposedis_rajegetaxopanu_senokiba_naken.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/buxoparadazegu/human_rogue_png.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/mafunozikizirorunuluvat.pdfIn PDF document text
    • https://s3.amazonaws.com/boduxatavepe/basf_india_annual_report_2015.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/padai_veetu_amman_songs_free_starmusiq.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000113e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113E6 5296 bytes
SHA-256: 3479a1f5c26f7eec5d2ae751496bfbf2b00b44ca70e8a06d48e17d214a94f3f4
font_01_sfnt_off000125d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125D2 10088 bytes
SHA-256: 56c154a39274bc4e65d056ec5399f551112995aaf39c51d997f00f0be4329b07

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