Malicious PDF — malware analysis report

Static analysis result for SHA-256 46f2aae47eb76ee3…

MALICIOUS

PDF

43.1 KB Created: 2020-11-06 02:15:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 3b93514ef8691ee990ecddbd1f8b1771 SHA-1: 9f837cef587f3e79d0839e9e9197eed701bd25b3 SHA-256: 46f2aae47eb76ee3c88efe23e9fd00ad9619e93fd376b922dc82bef3b6f7c8ad
96 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The primary external URL observed is https://traffnew.ru/strik?keyword=pawn+shop+ontario+ny, which likely serves as a gateway to further malicious content or phishing pages. While no scripts were explicitly extracted, the PDF structure and the high ML classifier score suggest malicious intent, possibly related to SEO spam or distributing other malware.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://traffnew.ru/strik?keyword=pawn+shop+ontario+ny PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388289/normal_5f943f400072a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379961/normal_5f9b7e9694aab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381082/normal_5f9065baf391f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393785/normal_5fa2a6523fe9f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367640/normal_5fa4913a2d41c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384142/normal_5f8e3fec0f62c.pdfIn PDF document text
    • https://lawaxiwutaf.weebly.com/uploads/1/3/4/3/134356413/440f774ddcf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369919/normal_5f892baff3289.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374369/normal_5f8efffc3fe20.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/682074.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424010/normal_5f9e704b8035b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371808/normal_5f99dee726c28.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/8b725e2d-8637-47bd-abec-1fd0897798f4/21819415341.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/medical_surgical_success.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/sotejiwebarovezufonikujo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36ec265d-2ee4-4e7d-9c44-e56891ed6911/84930514984.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_off00006641.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6641 5068 bytes
SHA-256: 30ff9b9a8e98f42927fe87d8e4e8ba84e52c38fa16d2e4b0f6d3c675c351d201
font_01_sfnt_off00007791.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7791 12872 bytes
SHA-256: 4113487ba20cb00e16436817740e9413674ec267189f9094f2337afac94d6c10

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