Malicious PDF — malware analysis report

Static analysis result for SHA-256 340ee69ff0274856…

MALICIOUS

PDF

68.0 KB Created: 2020-11-26 08:51:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: b920d784369d95ad9be56b2c0213e432 SHA-1: be01f3c27497c052a93d7a2384df92a6f7abf35b SHA-256: 340ee69ff0274856d67faa2677540e415dca43c8367d60beea10b38096c7e1d4
154 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic, which points to 'https://traffmen.ru/strik?utm_term=roger+morneau+books+pdf'. This indicates the document's primary purpose is to lure users to a potentially harmful website. The ML classifier and ClamAV detection further confirm its malicious nature, classifying it as a phishing or trojan payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffmen.ru/strik?utm_term=roger+morneau+books+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4381536/normal_5fafa5c50c6b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404959/normal_5fa099e99cf49.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/bde25ca3-fcfb-4ccf-9548-8396ff22e825/concepto_de_raciologia.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/zithromax_z-pak_250_mg_oral_tablet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cfd27f6-dba3-4f8c-b37c-165b64df0ce8/43616477772.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42793a18-7480-44e2-ace3-1f325cbdbab3/73871481194.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c86ec75-8e41-49ec-9ab4-7f8ff788a6bc/56690708042.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1870f7f0-8209-498c-b6c2-b7a1fa36bf08/android_9_pie_samsung_j5_prime.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50061fc4-c416-4001-b68c-8e08b0ea1ebf/14103805754.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/990542db-6c72-476b-bfab-c69497daccde/nutowomipoke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/889dc1bb-2fb9-491b-9a4b-4b2d1a665be0/zegavisosowajudozapudu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d548071-f657-4030-b3d0-1435c7fcea7c/62988737750.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_off0000ca8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA8E 5540 bytes
SHA-256: 8d030e2f9a5079dccc89207c512f1e7049edf68168f548d0c6d4cf90c4e3cbd9
font_01_sfnt_off0000dd54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD54 11420 bytes
SHA-256: e66664994c5986c47fde1913335170e3a19735b30ba867b6398359a944522f1d

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