Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce8ec9f96a5a5ca6…

MALICIOUS

PDF

69.4 KB Created: 2021-02-19 01:22:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2a1a15df3e3ebc7c0960ce4141dd47cf SHA-1: fceda37ace146e2fddfa9b94c037726a23c0666c SHA-256: ce8ec9f96a5a5ca6e0731225b226c9f91f75c96e710ec716abb7e6a02d6f547c
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/aws?utm_term=how+to+tie+gift+ribbon+bow In PDF document text
    • https://cdn.sqhk.co/visukodo/iigfIib/84262054737.pdfIn PDF document text
    • https://wuluruvujomokax.weebly.com/uploads/1/3/5/3/135349857/3e7b6f4115b6.pdfIn PDF document text
    • https://cdn.sqhk.co/wazafepel/jhOLkgf/driving_school_classics_mod_apk_obb.pdfIn PDF document text
    • http://uchebnoe.website/arijit_singh_songs_mp3_online3rkcd.pdfIn PDF document text
    • http://ag-management.space/microsoft_visio_2010_sequence_diagram_templateigkou.pdfIn PDF document text
    • https://sepuvoguzunisam.weebly.com/uploads/1/3/4/4/134488558/6e04ac2c.pdfIn PDF document text
    • https://cdn.sqhk.co/mixasuwekov/jfV8xMB/87820976585.pdfIn PDF document text
    • https://cdn.sqhk.co/kixikeli/ifFjaif/57621373542.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutazomaga/fibiiid/centurylink_email_support_phone_number.pdfIn PDF document text
    • http://phtech.site/63191324031xzlhx.pdfIn PDF document text
    • https://cdn.sqhk.co/pomisiforuko/eVwnGcK/wituvanutinifalozalubeno.pdfIn PDF document text
    • https://kigekasomek.weebly.com/uploads/1/3/4/5/134598498/8e8b54b9e14ad3.pdfIn PDF document text
    • https://cdn.sqhk.co/xolanikipiz/dpgd3ja/easy_cake_icing_ideas_at_home.pdfIn PDF document text
    • https://cdn.sqhk.co/xorilulog/Twd3wha/short_smile_captions_for_instagram_selfies.pdfIn PDF document text
    • https://cdn.sqhk.co/pasezateda/jNjfjjx/cooking_talent_restaurant_fever_game.pdfIn PDF document text
    • https://cdn.sqhk.co/xakurusuk/coYDhdz/crossfire_zp_hack_free_download_2018.pdfIn PDF document text
    • http://afterdealer.pro/youtube_labrant_fam_tik_tokqjwag.pdfIn PDF document text
    • https://giburonolunege.weebly.com/uploads/1/3/1/4/131406036/kurepitoni_lesojax_numitepuwigijo_kiwijiv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d3bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3BB 4708 bytes
SHA-256: 4c9f46c6443f205361e2068213103e88d0e97d47be20164ecf104b60cb93ddee
font_01_sfnt_off0000e3ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3ED 10936 bytes
SHA-256: b54f73fa205235d88a620ae481f591e9cd49b40a94249540ac40de7d117fddbc

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