Malicious PDF — malware analysis report

Static analysis result for SHA-256 3180e0ba97f78bae…

MALICIOUS

PDF

66.8 KB Created: 2021-03-04 05:50:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: a23fbb6214394bf144df1c3730038184 SHA-1: ee3be6fc0f0c967c419167330f43b20fa5f29587 SHA-256: 3180e0ba97f78bae512bf615e1f740cd35552ef170986a576703708620e795e6
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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 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://vilenefex.ru/wix?keyword=dex+explorer+v4+script+pastebin PDF link annotation
    • http://organicsss.space/be_brave_little_penguin4x8rb.pdfIn PDF document text
    • http://premiumpornclips.com/tesis_de_alcoholismo_en_adolescentes99idc.pdfIn PDF document text
    • http://znakomstva18x.site/kalokuleigghq.pdfIn PDF document text
    • https://xoxekoxezugox.weebly.com/uploads/1/3/0/7/130738790/taxunumadipegokufeb.pdfIn PDF document text
    • https://taleputara.weebly.com/uploads/1/3/4/3/134305900/4443d4b9a7.pdfIn PDF document text
    • https://roloruvibufezer.weebly.com/uploads/1/3/1/4/131410818/1e3dd1f10.pdfIn PDF document text
    • https://bogobesupagal.weebly.com/uploads/1/3/0/7/130775478/mupomutupafoba-nonufezozije.pdfIn PDF document text
    • https://xuredetinumimo.weebly.com/uploads/1/3/4/6/134630251/9132166.pdfIn PDF document text
    • https://wevoforu.weebly.com/uploads/1/3/4/5/134591306/ribupuguvakij.pdfIn PDF document text
    • https://cdn.sqhk.co/guzoladip/dhfQ6gf/amazon_photos_app_fur_mac.pdfIn PDF document text
    • https://takewinedol.weebly.com/uploads/1/3/4/7/134768260/5765099.pdfIn PDF document text
    • http://monongzhlh.space/pensum_agrimensura_uasd37q07.pdfIn PDF document text
    • https://musevupuli.weebly.com/uploads/1/3/1/4/131438528/130507.pdfIn PDF document text
    • https://cdn.sqhk.co/rogudokives/DY1hdPX/gold_rush_lost_mine_episode_list.pdfIn PDF document text
    • http://4kuhd.me/download_viper_android_pieccooh.pdfIn PDF document text
    • https://cdn.sqhk.co/modonasuje/jkZ0chf/74414379917.pdfIn PDF document text
    • http://beststudent.space/6658995199ftrup.pdfIn PDF document text
    • https://cdn.sqhk.co/beledufe/felgiji/tunnels_trolls_solo_adventures.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://duloduxu.epizy.com/windows_server_2012_r2_datacenter_iso_download.pdfIn PDF document text
    • http://fovelemuzawela.epizy.com/27004450761.pdfIn PDF document text
    • http://momalovategur.rf.gd/fapirukakilibapimugufew.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_off0000c7be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7BE 5284 bytes
SHA-256: b1e9a531cbca8484f825ccbae305e68fbd277678c3355a74680f765b081cf3b8
font_01_sfnt_off0000d9d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9D9 10592 bytes
SHA-256: 8c346351055eeb10d00587de709d4382527cadb92041904e3af62704f09be4fa

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