Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b69a9328d6ba189…

MALICIOUS

PDF

72.9 KB Created: 2021-01-25 21:13:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 7a648e82e8d07dc8c2446c5fdf3c3dea SHA-1: 288255f6e5e7d7c8f5c50e41c7d7665e1442a4ea SHA-256: 9b69a9328d6ba1891b3e77dc2d5590069ed6461b3e0e5c098a85cbb3627db85d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://bologen.ru/123?utm_term=magruder%2527s+american+government+workbook+answers PDF link annotation
    • http://wirodapupoz.iblogger.org/cash_flow_analysis_notes.pdfIn PDF document text
    • https://cdn.sqhk.co/rubovadu/hCHjbza/faxavebusadapazoru.pdfIn PDF document text
    • https://jitosagar.weebly.com/uploads/1/3/4/3/134318128/ginamov-kewovujopi.pdfIn PDF document text
    • http://logowiwubapokar.iblogger.org/19549484353.pdfIn PDF document text
    • https://tetalopen.weebly.com/uploads/1/3/1/8/131857308/79363f83a95c2bf.pdfIn PDF document text
    • http://coolvdomaion.online/fashion_story_mod_apk_latest_versionvzm7s.pdfIn PDF document text
    • https://jovawovifo.weebly.com/uploads/1/3/4/8/134883275/4165195.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fizenigapajawak.epizy.com/13739742030.pdfIn PDF document text
    • http://rawatakutuju.rf.gd/wuraxifafa.pdfIn PDF document text
    • http://bibuxidon.rf.gd/94677705458.pdfIn PDF document text
    • http://mejefelutirarej.epizy.com/sugata.pdfIn PDF document text
    • http://kimogule.epizy.com/14011381509.pdfIn PDF document text
    • http://sejojoxo.epizy.com/adenomiosis_uteri_adalah.pdfIn PDF document text
    • http://kewivifonawati.epizy.com/black_body_radiation_laws.pdfIn PDF document text
    • http://memajale.epizy.com/free_alphabet_coloring_worksheets.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_off0000d00b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD00B 5624 bytes
SHA-256: 9a5c88e1ce5b97e749a0aca2ab2df43158b86616271b10dd29feab9103c636e3
font_01_sfnt_off0000e344.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE344 16096 bytes
SHA-256: 9d4a090c54b5555b3cebd4fb755e0c937c5bdb9686544aa2e450fbba92cdc701