Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4558b32a42c8a68…

MALICIOUS

PDF

62.6 KB Created: 2020-11-23 22:33:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a54ecfb9a57acbeadc854aa10d9966f1 SHA-1: ba51107bd09cdad5a197cc096e1fe96b0eecf00b SHA-256: e4558b32a42c8a685b010b53578711c90126225de24b5508c1bd52a2a24c2115
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://trafficel.ru/strik?utm_term=star+wars+battlefront+2+psp+mods PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4401559/normal_5fa0789e5c880.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365552/normal_5f8972f185551.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447465/normal_5fb8ebd91784d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378846/normal_5f8c3d8a8e43f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386081/normal_5f8e88c04c62f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383574/normal_5f9ba7dda9e79.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495244/normal_5fbbf6f99b859.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/sukobogixe/42839503094.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcf2e2f2-cabb-4d29-9ee0-60f8a9dfccb6/mechanicsburg_pa_football_schedule.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff1d8770-e965-4a71-a92a-0ead801473e0/xanox.pdfIn PDF document text
    • https://s3.amazonaws.com/baposivarabuj/69995443008.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/chapter_8_study_guide_quizlet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b052615-a395-4fee-8ffa-ccb7fed9ce97/47948172734.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/powershell_send_email_from_template.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_off0000b3f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3F2 5652 bytes
SHA-256: ed532f15cd3905744805d24e5342cda423e3b35143548c060593b428e7076805
font_01_sfnt_off0000c722.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC722 10692 bytes
SHA-256: c6cd405aaeb9a26ade500f0fa1a304af5432b1a67c0bde52334be6399c99c595