Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6cc2a80f95c8404…

MALICIOUS

PDF

77.1 KB Created: 2021-02-28 01:44:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4753c265945350dc839ba16fc853aa9a SHA-1: b17bf954a81289a39de8cfee062c34419e61b331 SHA-256: f6cc2a80f95c8404befaf6b83bc3c69c6c927e2e525ee94e23c20d63093da3fe
96 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 embeds external URLs that direct users to attacker-controlled resources. 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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/wix?keyword=hawaii+state+holidays+2020 PDF link annotation
    • https://cdn.sqhk.co/resozasevej/jgjbmMM/6908772125.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470524/normal_5fdf361538b1d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383703/normal_5fe412d118099.pdfIn PDF document text
    • https://cdn.sqhk.co/retesixabe/4zyojj2/9014184054.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464530/normal_5fc9cd43aeb39.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/xilasisefi/aetiological_narratives.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/bebelefidige.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/who_created_the_six_step_problem_solving_model.pdfIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/netflix_app_android_9.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/gynecology_history_template.pdfIn PDF document text
    • https://s3.amazonaws.com/nijudow/86150871313.pdfIn PDF document text
    • https://s3.amazonaws.com/wuvepilamamuse/standardized_test_practice_biology_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/cambridge_dictionary_offline_free_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/84093182531.pdfIn PDF document text
    • http://jotunoxageleza.rf.gd/sasawilo.pdfIn PDF document text
    • http://nekaxikafixof.epizy.com/54589404441.pdfIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/98415667475.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_off0000efc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC8 5244 bytes
SHA-256: 848336ad807bb222668030f980b8591015d056101db08cb9e51d0412d111ae56
font_01_sfnt_off000101af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101AF 11000 bytes
SHA-256: a6737b5b9866217f4b3312adfce120a9b3dbf6c43f670502346c65a53fcc02b0