Malicious PDF — malware analysis report

Static analysis result for SHA-256 7154ae431410134b…

MALICIOUS

PDF

83.2 KB Created: 2020-11-17 11:33:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: fcc6743c7037261223eb5ce599f90d78 SHA-1: 118dcc5bb3d2727cb30742d3783984fc6bd38458 SHA-256: 7154ae431410134b40c1d93faca0c1d609503bf7c97ddd9e61c6b81b2e4eacfb
154 Risk Score

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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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://ggtraff.ru/aws?utm_term=all+colour+image In PDF document text
    • https://cdn-cms.f-static.net/uploads/4401546/normal_5f90921531f61.pdfIn PDF document text
    • https://kekofazejigax.weebly.com/uploads/1/3/4/6/134600595/6f47d2468a4030.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390366/normal_5f8dff3799530.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451035/normal_5fa4a928ecc3c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385612/normal_5f8db5c9e137d.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/3dfa79b6-1f57-4bcc-8f42-35a7a96684b7/lg_43uk6090_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e40907a-35db-4c82-b18e-60dc5b2b41f9/saturated_liquid_vapor_mixture.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fc16e4e-4f50-49be-8481-9049a0f16225/tapobuboxem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07e0ba7c-a980-4e62-8e5b-ca06f3185e22/kipazepadidulivinonozemoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/841e8b2c-a2a6-4b25-b29d-a815c369f242/52713864634.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45466793-62be-49ef-bb93-a04479b34cdf/wovujasuzajuv.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_off0001056c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1056C 4932 bytes
SHA-256: 32e3845ee6f34d922cc3f9ff072113042f50bc8c27b404b2f130fcfab6a40f71
font_01_sfnt_off00011615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11615 13540 bytes
SHA-256: 1e5581342553c23ded1093e6a7ef5fb3f485186fe2621e21ddff78b6abdc2192