Malicious PDF — malware analysis report

Static analysis result for SHA-256 32db3223458fc3c0…

MALICIOUS

PDF

72.5 KB Created: 2021-02-26 01:31:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 6094731b8bc8bb9371ab7adcc86fd214 SHA-1: 70196394a2c89632d84ba06baa784961be13903e SHA-256: 32db3223458fc3c00cebfee31e05404020df6fcef243e5dbfb94431347753b99
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://leonvi.ru/wix?keyword=bubble+tanks+2+hacked PDF link annotation
    • https://cdn.sqhk.co/jidulopavoji/igohjGy/56343126166.pdfIn PDF document text
    • https://posokirotol.weebly.com/uploads/1/3/2/8/132814476/buzalizugu_sewowari_rigapabimuw.pdfIn PDF document text
    • https://xidelora.weebly.com/uploads/1/3/5/2/135296398/fizuxuzo-silevimunedam.pdfIn PDF document text
    • http://vanlit.ru/glucogenic_and_ketogenic_amino_acids7c32u.pdfIn PDF document text
    • https://cdn.sqhk.co/dolitife/jdjevhb/tower_defense_alien_war_td_gift_code.pdfIn PDF document text
    • https://cdn.sqhk.co/wadalibituge/haTjgjd/95826595556.pdfIn PDF document text
    • https://kukatuvitakutir.weebly.com/uploads/1/3/4/6/134690336/bokuvolipetepibu.pdfIn PDF document text
    • https://cdn.sqhk.co/livixugakuf/ehcjaxe/bubble_startup_adalah.pdfIn PDF document text
    • https://tobivuzulukimu.weebly.com/uploads/1/3/1/3/131384599/8134332.pdfIn PDF document text
    • http://terem.space/3817329805qln3q.pdfIn PDF document text
    • http://instacopyrighthelpteam.com/bacterias_fitopatogenastb5h1.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/jifedefujodu/1054932398.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/extron_dtp_hdmi_4k_230_tx_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/jiwawonom.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_off0000e004.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE004 5316 bytes
SHA-256: 4d44e4ac890504e0a0e79fcfd22843b40dc09b3bad8555f1e26fb159b8a031b8
font_01_sfnt_off0000f217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF217 10412 bytes
SHA-256: 4d954805a544d5efd641757da2358483ce9d3b3f0b293e1a06ae28f650d3fdae