Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb237a45df0705ec…

MALICIOUS

PDF

72.0 KB Created: 2020-11-18 05:32:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 93a69c32bd30f8e5a2597ee87a50d791 SHA-1: ded2cc6959fa41774890f4c78ddbe92ae63c1ab2 SHA-256: eb237a45df0705ec883e0872a5338f4d8f343144e18dcc7632a02ac6aa32df8d
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 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafficel.ru/strik?utm_term=in+your+eyes+mp3+kylie+minogue PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379961/normal_5fa898484cf77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470521/normal_5fabaaa0c4e55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383679/normal_5f8c28007d6f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368488/normal_5f91c4c1dd66a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380680/normal_5f8d11ae494e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387577/normal_5f9cbf51e4a0c.pdfIn PDF document text
    • https://miremewokar.weebly.com/uploads/1/3/0/7/130738658/225984.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387410/normal_5f95cd707e870.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422622/normal_5fa63e0a2814f.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/fasanag/xudovilidu.pdfIn PDF document text
    • https://s3.amazonaws.com/pegek/juzef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7da94f32-6a66-4423-a9cd-feeacb45e559/the_spirit_animal_oracle_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed4aad31-387f-4c29-983a-9aaf2b480807/keloxelubevokiji.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_off0000da16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA16 5196 bytes
SHA-256: 717f28803fb7ea52ee37fccbf69ebd756b9e8fcc202cd9a89971bbdafe6a393c
font_01_sfnt_off0000ebbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBBE 12572 bytes
SHA-256: b295d02b2651219c90ed2002638e26fcdfaf473d0c4ac40f9e3c4fd90d3a54f8

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