Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a339bb523478048…

MALICIOUS

PDF

77.2 KB Created: 2021-02-26 13:31:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a5efe8d10ebd3445d41fd082dfe7bcb9 SHA-1: baf877bcfcb6b7b78a81c6a3625bb833d57a9c93 SHA-256: 8a339bb5234780484c6c8b18f836018dec9b1baf01f3a365a7c4fe69e0c375f5
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://xezojetit.ru/award?keyword=richard+ii+act+3+scene+4+summary PDF link annotation
    • http://tewatag.medianewsonline.com/how_to_get_a_baseball_bat_in_gta_5_online_xbox_one_2020.pdfIn PDF document text
    • http://fajujefa.getenjoyment.net/diary_of_a_wimpy_kid_show_cast.pdfIn PDF document text
    • http://yourcy.com/motasulek1yug2.pdfIn PDF document text
    • https://monogelifanalo.weebly.com/uploads/1/3/5/3/135387447/5a20280a.pdfIn PDF document text
    • https://ziropiwos.weebly.com/uploads/1/3/4/3/134311351/sexenawowub_kinidezu_fijav.pdfIn PDF document text
    • https://latopilufazi.weebly.com/uploads/1/3/4/0/134017217/dajuge.pdfIn PDF document text
    • https://damatabawapu.weebly.com/uploads/1/3/1/3/131379320/zoxitu.pdfIn PDF document text
    • https://sujezebaxoxil.weebly.com/uploads/1/3/4/3/134316131/7899174.pdfIn PDF document text
    • http://eurofamily.pro/goluluriguxl1.pdfIn PDF document text
    • http://kemytbok.xyz/defidilepufeufjm2.pdfIn PDF document text
    • https://nonuradijo.weebly.com/uploads/1/3/1/4/131406562/11264001eb3d.pdfIn PDF document text
    • https://xoxudepibedewem.weebly.com/uploads/1/3/5/3/135317482/9926385.pdfIn PDF document text
    • http://roxelejabojafe.scienceontheweb.net/media_visual_codes.pdfIn PDF document text
    • https://dofafurubes.weebly.com/uploads/1/3/4/7/134762343/wugejewedif.pdfIn PDF document text
    • https://wovugozota.weebly.com/uploads/1/3/2/6/132695813/2715324.pdfIn PDF document text
    • http://coolstudent.space/47888942842spmrb.pdfIn PDF document text
    • https://ritixalasan.weebly.com/uploads/1/3/4/2/134265532/xetekunozininoxegew.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zubiluwetij.myartsonline.com/what_is_compacting.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_off0000f1a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A4 5508 bytes
SHA-256: a4575991e0fa86711a52b47087248f110e940caef9a494b2ce7020cab1ee07da
font_01_sfnt_off00010446.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10446 10516 bytes
SHA-256: 02230d89ab053f366709679da4362984e1c0c1ca7c913fa3b1836300ee15c0e5

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