Malicious PDF — malware analysis report

Static analysis result for SHA-256 602aaa8695e8cef0…

MALICIOUS

PDF

50.6 KB Created: 2021-03-10 08:51:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 680e1cbc62c050021b971fb928e57367 SHA-1: 5e359ccdc77d1bdf6964d89d3fd8d5e0538ef455 SHA-256: 602aaa8695e8cef083091485c3a7d29236e82e6fed71602a945eb867f0258a17
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

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 0.9328

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://crophysi.ru/aws?utm_term=sex+education+in+public+schools+articles PDF link annotation
    • http://sis-paypal.com/14255696572xk1ki.pdfIn PDF document text
    • http://productwood.ru/wafoguvhipdk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378618/normal_5ffbe12887a64.pdfIn PDF document text
    • http://ashotik.space/suvameridumef1a16e.pdfIn PDF document text
    • https://jenafowumavadas.weebly.com/uploads/1/3/1/4/131437472/5474060.pdfIn PDF document text
    • http://voztrans.ru/3rd_grade_history_worksheets_free313nn.pdfIn PDF document text
    • http://saleproducts.pro/college_algebra_with_modeling_and_visualization_5th_editiong6iwt.pdfIn PDF document text
    • https://vomanoxugorufo.weebly.com/uploads/1/3/5/3/135331351/dokabir_tugadadita.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462976/normal_5fcb2b59dc379.pdfIn PDF document text
    • https://nibolujadi.weebly.com/uploads/1/3/1/3/131381302/6358936.pdfIn PDF document text
    • http://interbankdigital.com/python1iw12.pdfIn PDF document text
    • https://zugatuwedi.weebly.com/uploads/1/3/0/8/130874050/541fb1d3b1a5.pdfIn PDF document text
    • http://www19216801.site/berserk_volume_38_cbrwbau4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378852/normal_5fd10a00b3ea3.pdfIn PDF document text
    • https://jitezawedum.weebly.com/uploads/1/3/4/6/134688152/tozogavonaf-rowik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68596c82-f0cb-432d-8a57-fc8b9612051b/27723209260.pdfIn PDF document text
    • https://f039f7e9-c7fa-441d-bf3d-2f0e35d6be10.filesusr.com/ugd/80685d_cc167fd2f0b045d0bbca728362032b95.pdf?index=trueIn PDF document text
    • https://d1ee23ee-9ccf-45b0-80ef-1e1ff1f657c4.filesusr.com/ugd/9ef0c3_7e41d4d4ce324b9e8d86ebdd2efe6f62.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a777818-0b65-4242-8c5e-3a4d7466bc9e/8812111992.pdfIn PDF document text
    • https://69f6cc44-9198-4e41-bafa-43503dba92bf.filesusr.com/ugd/dec231_58f5dd6852c9429e8066d06b026c8544.pdf?index=trueIn PDF document text