Malicious PDF — malware analysis report

Static analysis result for SHA-256 27076ba6b866473f…

MALICIOUS

PDF

72.6 KB Created: 2020-12-09 12:40:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 076f7cee267b093a84fe89aaf191bdf4 SHA-1: b156308c1c704a6dfb1e1c2ea6f2e5d1358b926a SHA-256: 27076ba6b866473fe8e62ede5ce98719ceff2fd20db0759dd46b77f9281d78b5
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 0.9997

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://traffnew.ru/strik?utm_term=framingham+high+school+yearbook PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370053/normal_5f8973f6a3f1d.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/5fbce344be7cfc36344e8aaf/t/5fbd04e8dae50a0145886689/1606223083660/shutter_island_book_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tifuwuw/75907991650.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50aad4af-af98-4ece-bb8e-e7d2ea581ae9/79176572712.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/55953820263.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2bfee808-984a-4b17-aa0f-78f1552db7c1/73005727203.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b1799d8d-7dd2-460b-9eac-6999772ba1fc/fosudaduzexabexabuwu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5308a0f-c891-43eb-a522-5fa06aa233e0/fivufap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d55c034c-4c68-4fdf-874f-7df8279d3913/gufapesobupa.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2a394239b0722913c6c92/t/5fcd438e1e1a4d7de1382ea0/1607287694954/there_you_go_johnny_gill_producer.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/47075885712.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6200a01-7994-4640-89f3-944a20e65eae/watch_baby_driver_online.pdfIn PDF document text
    • https://s3.amazonaws.com/tesapibebujep/xubojelaxalanog.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_off0000ddef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDEF 5472 bytes
SHA-256: d4af864d956b5e2c3aed360acbf8ff532b8609798805205d552336caafd24d21
font_01_sfnt_off0000f074.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF074 10856 bytes
SHA-256: f90f8539535fa295dea8075f9ec5beb99f68ba712bb9801f3bd25d8e0ee3c34a