Malicious PDF — malware analysis report

Static analysis result for SHA-256 432b2db9aea7d9cb…

MALICIOUS

PDF

63.8 KB Created: 2020-11-26 09:50:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f3cb4a3593a30c6e8bce4880f4e6da8a SHA-1: 16f581c5f4e5b1da3a3120ecc183636049366dfb SHA-256: 432b2db9aea7d9cb23c42f53b5c98a7a364abd9433501fb598fa6365f0a1662d
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/strik?utm_term=apa+how+to+cite+the+bible PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4383327/normal_5f92dcf31acad.pdfIn PDF document text
    • https://wiwusazefaxowo.weebly.com/uploads/1/3/4/4/134457051/rorabuxozenazex.pdfIn PDF document text
    • https://babinekisifuve.weebly.com/uploads/1/3/2/6/132696104/fojateb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466386/normal_5fa45ce9c4d77.pdfIn PDF document text
    • https://fomezesas.weebly.com/uploads/1/3/4/3/134343882/nizelow.pdfIn PDF document text
    • https://ponikinofenad.weebly.com/uploads/1/3/4/6/134602628/komolav.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375507/normal_5f8e7a54c6aef.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/3a13d014-b54e-4e92-8bc9-b0e13cc3e452/93320790886.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e398cd3-2993-4254-affb-55499dcf7ee1/lefisaworopel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0403ed4e-2659-4a03-a0b8-7b9e18b45226/zudojoxok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1e31e4f-da32-4b9a-ba65-1a2564a1da53/26709914774.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b82694f8-3424-44c7-9b97-3fb7d9fc97f2/korezubukuniresedaledimo.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_off0000bd86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD86 4968 bytes
SHA-256: 756271f3b698337134d239159c29d306c68233e18f0a2606254c674ab93481c0
font_01_sfnt_off0000ce81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE81 10656 bytes
SHA-256: d63717a4c072bba27a7e8899b5d11353ab801329e135d16e186d350f48c328bf