Malicious PDF — malware analysis report

Static analysis result for SHA-256 66079233865a2748…

MALICIOUS

PDF

69.6 KB Created: 2021-03-15 03:08:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: fce0aa4153c8b43b3df254d88d3dbf7e SHA-1: c89b194f8f68d7c5a032f5a8e5d91461ab2f021f SHA-256: 66079233865a2748446098c8a53d969a070d94d6345d64607a1cb94c7baa5652
126 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, with a primary external URI pointing to 'https://ponafet.ru/wix?keyword=la+fitness+coral+springs+hours'. This URL, combined with the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM', suggests a phishing or scam attempt designed to attract users through search engine optimization lures. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ponafet.ru/wix?keyword=la+fitness+coral+springs+hours PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387816/normal_601ecced0faf6.pdfIn PDF document text
    • http://ginupedarokuxu.getenjoyment.net/pdf417_barcode_generator_online.pdfIn PDF document text
    • http://gelivebun.22web.org/36805735377.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467300/normal_5ff7d5c2661d9.pdfIn PDF document text
    • http://vulenawaxoki.iblogger.org/autocad_2020_full_tutorial_free_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478961/normal_5feb8bb1e5b2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405895/normal_5fd80f6b97044.pdfIn PDF document text
    • https://cdn.sqhk.co/potasuregoz/ij0zChg/jinunawuxivedabexaxuxewa.pdfIn PDF document text
    • https://guwusupokase.weebly.com/uploads/1/3/1/4/131437041/d9fedf292141192.pdfIn PDF document text
    • http://somuvopavu.iblogger.org/outlook_365_gratis.pdfIn PDF document text
    • https://lezogifivejuz.weebly.com/uploads/1/3/2/6/132682585/c653fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387410/normal_601151382f24c.pdfIn PDF document text
    • https://cdn.sqhk.co/sadirorig/AgisSjd/71018704785.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/jarawaxanivu/printable_medicine_wheel_template.pdfIn PDF document text
    • http://biborufa.epizy.com/pure_imagination_piano_sheet_music_easy.pdfIn PDF document text
    • http://batapijas.myartsonline.com/91911822816.pdfIn PDF document text
    • http://zutugidod.onlinewebshop.net/denon_avr_1712_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/cisco_catalyst_2960-_x_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xefezesebusu/elite_dangerous_vr_vive_setup_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dikomavomem/15119383357.pdfIn PDF document text
    • http://tutivute.epizy.com/i_ll_stand_by_you_piano_sheet.pdfIn PDF document text
    • http://gujimosodaza.myartsonline.com/48535641048.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_off0000d0f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0F0 5216 bytes
SHA-256: b8acd7b4489cecdbeb51619a259081296422064e576e0ace343413f18986f7a3
font_01_sfnt_off0000e2b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2B3 11216 bytes
SHA-256: b3c941dff9edd6da054fc86d1dc14cb9a31b65d32c9705c8906f5718c5018119

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