Malicious PDF — malware analysis report

Static analysis result for SHA-256 b94268158f8d711a…

MALICIOUS

PDF

59.5 KB Created: 2020-11-17 17:26:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 005d3f759a059ab110549f4486c802fd SHA-1: d7d8d6e5774e00be2e52670c454dbee8cb695845 SHA-256: b94268158f8d711a77acd160b6649e93446f934a00c284e4a2e77025c2995b9e
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 0.9996

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://traffset.ru/strik?utm_term=loteria+nueva+york+noche PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369189/normal_5f98716ca674f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366655/normal_5f897155200c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391620/normal_5f9788b27b05c.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/d9ee242c-57b9-4ea4-be0f-b09549d6a44f/wunajib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6125f8d8-7018-4bae-934a-ff03487bec32/refujigugufukalurodo.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/free_weekly_behavior_chart.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bd0542d-dea1-4142-ab74-b16b1f7a4a94/zalefujiborolotuveruk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2de7617-9b5a-4350-9834-5e92b528fad1/the_game_paradise_city.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba74ac71-c08a-4559-ad01-c3d079790a1c/38713723360.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26b4559f-31fd-4c61-a49a-e66f0c068f73/jugurafadujitebubefe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35176eea-2b45-44e2-a440-71583b2473b6/zogidiviwutufotex.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3afaaca-4034-4f95-a660-d94c5cea0379/jegabek.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_off0000ae1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE1E 4844 bytes
SHA-256: 026d7ee03cce70d3bc0608dad4b59c09f08e547f3bf1f70443cb26c1b3969cc9
font_01_sfnt_off0000bea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBEA4 10292 bytes
SHA-256: 995a661bc759b757a30c67eadf41e7a92c76bda1618a05f07ae123fb84766759