Malicious PDF — malware analysis report

Static analysis result for SHA-256 de9905e432956b02…

MALICIOUS

PDF

72.5 KB Created: 2021-02-21 08:13:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 7df0f632d731ea585ea2656f5b985ab4 SHA-1: a388d0bc76fb09eba43a602a895ed1a6305745df SHA-256: de9905e432956b028fb0151b7f2e48cf2009031920b05a6a0c9a65545f73539d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. The embedded URL points to a suspicious domain, likely serving the malicious content. Although no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to exploit vulnerabilities or redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/strik?utm_term=48+laws+of+power+christian+review PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366010/normal_600dcec7e2950.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366976/normal_5fed53f3c3121.pdfIn PDF document text
    • https://cdn.sqhk.co/vefapatape/ijzjbTK/mofapokesexusurajunatajuk.pdfIn PDF document text
    • https://cdn.sqhk.co/zapiseniw/jefidzn/nitutonakurog.pdfIn PDF document text
    • https://cdn.sqhk.co/xelajuwodaf/bP7Rhhc/mijozata.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393188/normal_5fd8d35e025ef.pdfIn PDF document text
    • https://cdn.sqhk.co/vozeseseber/Yhf1Vje/astral_chain_dark_hero_male.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475988/normal_600084d2a6bf9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373261/normal_5fe0d5f12c66b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390373/normal_600f76c76074d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410730/normal_600cfb9c555b1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460465/normal_6011c493a9ceb.pdfIn PDF document text
    • https://cdn.sqhk.co/savunowudob/boLgi8Y/51833201326.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/fadadedezeker/togiramikexewodavufezu.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_off0000de79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE79 5440 bytes
SHA-256: 5445d450292f78c85bc33c953c5366b2e3d0cbb01ff76a6d9e35e31b97deb04b
font_01_sfnt_off0000f118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF118 10448 bytes
SHA-256: 09eac7ab194efb3a76a48f5b36710422d77d30c037c0b85da3f0fc021e0df091