Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5c0f87808148381…

MALICIOUS

PDF

74.3 KB Created: 2021-03-08 13:28:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e13b87553f8c33b7407df75878e2ea4a SHA-1: 39325ac4142a9a379050953b289975ca36860b2c SHA-256: e5c0f87808148381fd06b3f4dd482d1351e50b9e651a153f68bd9b6bd98f28a5
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://bologen.ru/strik?utm_term=can%2527t+open+my+liberty+safe PDF link annotation
    • http://bilet-pdd.site/suzinebanigatiwzxlr6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386354/normal_5fe48d215d518.pdfIn PDF document text
    • http://vazagitomis.mypressonline.com/tajazumenawiwefa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386347/normal_604337fdd2c55.pdfIn PDF document text
    • http://poxumanavofeboz.scienceontheweb.net/80374982046.pdfIn PDF document text
    • http://kind-insta.site/new_rock_music_videos_2020c54hm.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481552/normal_5fdd8336dddd0.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/bdc25808-86b5-4eeb-b95a-28edd6144b96/xuvaludes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bca01808-33a2-405b-9839-9e4931794bb7/90376870560.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b98a8bb6-b41a-422f-8270-fce915094e04/machine_learning_and_deep_learning_ppt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25f4976d-0e12-4bef-acdd-ba03ef06424a/zejat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3017c910-1d7f-48f8-a3bf-0c488f1fc1b4/hp_elitebook_8570w_price_in_kenya.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6d47d8b3-58f1-4eea-8f47-8339be3b2480/manfredo_do_carmo_differential_geometry_solutions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ed32ebe-4de5-4718-8dca-3555b95209e0/27187168405.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f36d721-2868-411b-9c79-1528021c8c33/ponoliwatapopin.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_off0000e5a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A6 5228 bytes
SHA-256: cf932456a8cb4618e378252af0d634444901daf621b3a009d2ad697ae0b6ee0a
font_01_sfnt_off0000f761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF761 10812 bytes
SHA-256: a78836e18dff5a683d77ed6e4797db1dca7d5eee81b35b9565bb57b41d176783