Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd46da0ba2a658ac…

MALICIOUS

PDF

67.7 KB Created: 2021-02-06 14:27:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 7656feed9b5f5b54de60f13e12414ff8 SHA-1: c226d23a937e7718c3041929db9be8e0af957e62 SHA-256: cd46da0ba2a658acc71be42664755e9c0bcfb08bd90dbee08e9897c2d9fd7e88
96 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely a phishing lure. The PDF structure and embedded content suggest it's designed to trick users into visiting a malicious website.

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
  • 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://leonvi.ru/aws?utm_term=bal+sanskar+book+marathi+pdf PDF link annotation
    • https://cdn.sqhk.co/pumevigatare/eiia1ij/nerokamomanud.pdfIn PDF document text
    • https://cdn.sqhk.co/fiwujumejuf/jiebHhc/43961133106.pdfIn PDF document text
    • https://cdn.sqhk.co/wezufunin/MZiaidK/international_video_calls_on_whatsapp_web.pdfIn PDF document text
    • https://cdn.sqhk.co/mumepefofise/fAPjegf/32581927335.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491945/normal_5fca9e8f96a54.pdfIn PDF document text
    • http://italysummer.fun/4th_grade_spelling_list53fi6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453889/normal_5fe69fd881619.pdfIn PDF document text
    • http://prizinsta24.space/33155224612ugjew.pdfIn PDF document text
    • https://cdn.sqhk.co/kawinojos/jjfGiia/66268117976.pdfIn PDF document text
    • https://cdn.sqhk.co/kajipazuto/iihf9FJ/pioneer_headphone_app.pdfIn PDF document text
    • http://qunit.space/best_hide_and_seek_maps_with_secret_spotsj3c9d.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/poguvelefa/55616698609.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/fodupepanebiwile.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/21322859511.pdfIn PDF document text
    • https://s3.amazonaws.com/rerinago/working_of_bushing_in_transformer.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_off0000cb79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB79 5532 bytes
SHA-256: a5a3dbdbf449bc7ed7a8fcc5ebfa4243fd979632b289f4723c2cf55da54e66e4
font_01_sfnt_off0000de19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE19 10472 bytes
SHA-256: e71ff766dd2f51bd17764404c90ab5029fd1e065208ec34b5561e62811821894