Malicious PDF — malware analysis report

Static analysis result for SHA-256 39b1e8c75a33dd6c…

MALICIOUS

PDF

70.2 KB Created: 2021-02-09 16:50:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: fb968c342844e75a0c7738513069f9fa SHA-1: 122836d54e57c31ac4b56e956b40b0ceb5686d6f SHA-256: 39b1e8c75a33dd6c8c431afbbcb1921cc59b35f300e0d8c3892e8f420b7a6cec
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://jacksth.ru/wb?keyword=easy%20animation%20program%20free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4402519/normal_6013c68681a9e.pdfIn PDF document text
    • https://cdn.sqhk.co/jujegopenop/hegchd9/zedulifazufiwegawovenezol.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446925/normal_5fd9b646a406a.pdfIn PDF document text
    • https://cdn.sqhk.co/masamiwe/8gjhezV/wevewafe.pdfIn PDF document text
    • http://naturaitalia.space/57188773862hos0y.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378393/normal_5fdb95a67f7b7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470679/normal_5fe18dbde7590.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368989/normal_600e4b68c670d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392452/normal_6005d3e031241.pdfIn PDF document text
    • https://cdn.sqhk.co/xawefigi/bhgjbOA/74428352595.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460251/normal_6013b0e8bd7d4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rukukuwozar.epizy.com/26798554316.pdfIn PDF document text
    • http://fisuzes.epizy.com/electron_configuration_pogil_packet_answers.pdfIn PDF document text
    • http://vutimeban.rf.gd/android_tv_apk_netflix.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/6952169949.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/caller_name_ringtone_apps.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/krabi_travel_guide.pdfIn PDF document text
    • http://bidadaweba.epizy.com/formalits_visa_burkina_faso.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_off0000d7d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7D2 5248 bytes
SHA-256: 96dcbf45113aabf0c09a483116aae626728bdc2b49a7876867507efff599d9fd
font_01_sfnt_off0000e9a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9A6 10084 bytes
SHA-256: 776f7a25796ac6285f0332fe3b0789b6f20c88a13c53d639f594ff6546363ff9