Malicious PDF — malware analysis report

Static analysis result for SHA-256 09e867df91fb9848…

MALICIOUS

PDF

65.3 KB Created: 2020-11-18 08:23:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 2a65b0b0ed5596cc1190ab8e3175b826 SHA-1: be6d39b0a69f371925fd5bbce75d43f8a679e827 SHA-256: 09e867df91fb98481a76927e49136520d5bc8b4832cdbf0402bc158987c84f0e
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffking.ru/strik'. This URL is likely used to lure users into a phishing scheme or download further malicious content. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that it is designed for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffking.ru/strik?utm_term=components+of+supply+chain+management In PDF document text
    • https://cdn-cms.f-static.net/uploads/4415767/normal_5faa5d3c39d31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379487/normal_5f8c94d740cec.pdfIn PDF document text
    • https://webuwoterin.weebly.com/uploads/1/3/4/5/134589655/32dcce7f7eaba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385633/normal_5fb29f0aa6890.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418783/normal_5fb4a167d1d53.pdfIn PDF document text
    • https://zirodaxe.weebly.com/uploads/1/3/4/6/134611642/jomewugezid_digijakifatas_felaje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393761/normal_5f920d8eed41b.pdfIn PDF document text
    • https://teguvubab.weebly.com/uploads/1/3/4/3/134347924/3100474.pdfIn PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/33f854f3b48ebc5.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/pisedij/nukupamagibabivojagal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea5173a3-4867-444b-a87e-82cc7ca31cf4/bagare.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_off0000c5c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5C1 5340 bytes
SHA-256: b118ec2d6bc1c7bc8033ecbdd5b149fb493ce44a7befd7baed34a32442575edb
font_01_sfnt_off0000d7d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D5 9664 bytes
SHA-256: cfbfdf3c399fc16b5a2ca221b573c114bccee6f5facab6c7736e117bee015e81