Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf17dd90fceb3c26…

MALICIOUS

PDF

73.6 KB Created: 2021-06-01 18:45:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 0df940020a870d9273156328f023f36f SHA-1: 8c03b607f15bf2a3b8b50f9bfeebb62228903122 SHA-256: bf17dd90fceb3c268fdd91a225841993ae7424f138923309b98514de207c5406
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website disguised as workout videos, likely a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/123?utm_term=biceps+and+triceps+workout+videos PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4404753/normal_5fdb2bb280e6c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416319/normal_6003396ae2ac5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413835/normal_5ff23a1f89f6a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419211/normal_5fedcd5bd69c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404290/normal_601ba7f8cc025.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466153/normal_602ebf2205edf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381101/normal_6001393a46104.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476420/normal_5fe0c592d0c72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368479/normal_601837cf97f24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391602/normal_6039e077039e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379974/normal_6028ad8f1fffa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370263/normal_6031853477cde.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465919/normal_605658130bdc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444123/normal_60473b3a47b57.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384296/normal_5fcc0e887f017.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371246/normal_603ee096ddc28.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sewafebi.pbworks.com/w/file/fetch/144426303/alfabeto_para_imprimir_tamanho_grande_colorido.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/386c8e3e-3396-4419-b1f2-893d6b82b4c4/vuxerulalujede.pdfIn PDF document text
    • http://jifesepapo.pbworks.com/w/file/fetch/144458295/blackmart_alpha_android_download_chip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea0365e4-000a-479a-bfa2-8bfbdf398479/fizuxuvuwadilejobiw.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

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e33d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE33D 5300 bytes
SHA-256: cd876eacd73a7dee62507b37c8ec12dd4972dc65510bf5cd274abef08b90ac60
font_01_sfnt_off0000f570.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF570 10520 bytes
SHA-256: db2a3a0f400ee8803f3c5d134dabefe82287d9e9c6a7560f37b8074c80583e06

Open this report in the interactive analyzer, or submit your own file for analysis.