Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ac460ac68f71a9e…

MALICIOUS

PDF

86.4 KB Created: 2021-02-22 06:30:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: ffe8c1fa7099b57ed467c86ecece88a9 SHA-1: a776ffa7285189eab1ec9e8b360bdb70ed23fe3c SHA-256: 2ac460ac68f71a9e0a5a7604314a0a192bff455bd3d7f8fe9a69d0c854e6850a
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL, identified as a lure for users searching for specific historical information. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The PDF structure and embedded URI suggest an attempt to redirect the user to a potentially harmful external site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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=hawaiian+warrior+helmet+history PDF link annotation
    • https://cdn.sqhk.co/baveninale/0iaiibg/how_to_play_texas_solitaire_cube.pdfIn PDF document text
    • https://cdn.sqhk.co/tejosepu/snhhhj6/58248871084.pdfIn PDF document text
    • https://cdn.sqhk.co/supesuvepo/fiamIrH/80954050159.pdfIn PDF document text
    • https://cdn.sqhk.co/gisusisabez/hbklie8/vazepewaguripoxidob.pdfIn PDF document text
    • https://cdn.sqhk.co/jukunobegabe/ha9BgcX/nozenezinezenumur.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462688/normal_60095117e070e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449603/normal_5fca64b238111.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420589/normal_5fd34d062b250.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376120/normal_60127908718f0.pdfIn PDF document text
    • https://cdn.sqhk.co/fakineduxafe/eDENghQ/business_strategy_examples.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461525/normal_602b22d496a92.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/kisagoz/xolikefa.pdfIn PDF document text
    • http://saxopurokike.rf.gd/65851211806.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/77415280569.pdfIn PDF document text
    • http://bomepexajusopa.epizy.com/dictionary_app_offline_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/amazing_themes_app_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/vufuzewasi/zidumifa.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_off000117ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117AE 5080 bytes
SHA-256: fa094822b61794b66358a83bc9d0b58699bcd9ec8917c01cdfce4ea2ee10c636
font_01_sfnt_off000128db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128DB 10452 bytes
SHA-256: b32dfee69c99398aa3ae007117355d55a6f22d2040c8752a4ec335eb90c41061