Malicious PDF — malware analysis report

Static analysis result for SHA-256 405907ac4eee6a22…

MALICIOUS

PDF

67.8 KB Created: 2020-12-17 15:33:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c622730d87a6092284fad54da560b3e8 SHA-1: 79616cff80f633b33753c6d3971af5abaac8a581 SHA-256: 405907ac4eee6a226a53b09da382f0e876bf1a3f080961477498b995b6b54563
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-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://traffking.ru/aws?utm_term=wow+vanilla+fishing+guide+1-+300 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4408482/normal_5fb8fa786bcd5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385614/normal_5fb7124dcc938.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382621/normal_5f8f22e709662.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495251/normal_5fbdd2f843a7f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc1129368612547ed5f20ea/t/5fc1dd3c2dd96f591833037b/1606540604730/18751743480.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc29fc08787e879897709a8/t/5fcf4bff55629615614f43c7/1607420929330/maybach_6_vision_super_car_speed_drifters.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3666f3bb-f072-4d41-afeb-892753d649bc/nuketoniveteselesu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5a6a1be9b6939512b3ad5/t/5fcc4872662d5e24e096b257/1607223411455/marvel_movie_collection_dvds.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc56bd7c14dfd36fe0fe611/t/5fc8d4216031f473862915f1/1606997030357/burger_king_menu_2_for_5.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2b45ca87939686413d8d4/t/5fd04b7ecb6bfe602c4bff3b/1607486335143/jagalepoxejejama.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d785085bf90c0efcc6ad/t/5fc57b3b7acac6192a7c63f7/1606777660349/sixth_and_seventh_books_of_moses_part_2.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc142aa68612547ed60969d/t/5fc96aadfbf8976b723ad1a3/1607035566445/ios_global_proxy_pac_file.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1129368612547ed5f20ea/t/5fc1aefc1972c46e3cddbf81/1606528764855/43958158840.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/gifataloxoposove.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_off0000cc28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC28 5628 bytes
SHA-256: d5992437b0b47e3651f1991dbcc8b2fcfe9fc9860995bf9ca85b8ddfd5dd6d10
font_01_sfnt_off0000df7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF7F 10316 bytes
SHA-256: de19ef4aeae2ddf2ce84affb7f7991cdc20db40ccd488a123bd36a3d79cb99ce