Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a714af0b9871b67…

MALICIOUS

PDF

69.3 KB Created: 2021-02-12 23:00:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: db73c695e64af629215ca91bc7a31863 SHA-1: c6703533580a0ac124972a3195debdb85e6eebd3 SHA-256: 3a714af0b9871b67237ebe19cc9357346f6bca9a44b97c7e8093475199297eb8
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/wix?keyword=lithonia+finance+co+lithonia+ga PDF link annotation
    • https://cdn.sqhk.co/zaxuloxedu/dMlhdhg/pirejusodo.pdfIn PDF document text
    • http://geosen.net/the_great_debaters_study_guide_answersx392r.pdfIn PDF document text
    • https://namoxatiki.weebly.com/uploads/1/3/4/4/134477177/4308753.pdfIn PDF document text
    • https://gilepijojuju.weebly.com/uploads/1/3/2/7/132740412/xilim.pdfIn PDF document text
    • https://cdn.sqhk.co/foroboreb/gk19ieW/69498856762.pdfIn PDF document text
    • https://cdn.sqhk.co/zudilubal/gggg1hh/9200684668.pdfIn PDF document text
    • http://mxsale.info/enchanting_guide_minecraft_2019pb8xb.pdfIn PDF document text
    • https://kazirevuteguzug.weebly.com/uploads/1/3/2/6/132681824/1986394.pdfIn PDF document text
    • https://cdn.sqhk.co/buvovemif/jhBghia/nba_2k_mobile_basketball_android_release_date.pdfIn PDF document text
    • https://wexabegolorumad.weebly.com/uploads/1/3/4/3/134351445/00103072b7d1d.pdfIn PDF document text
    • https://kilekawu.weebly.com/uploads/1/3/4/8/134857711/dabuzamusogidalu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425727/normal_5fd62bf86671d.pdfIn PDF document text
    • https://cdn.sqhk.co/jegamaxegev/cmhdYZM/80468091281.pdfIn PDF document text
    • https://cdn.sqhk.co/ranotigu/U1IgtF5/parkour_school_minecraft_pe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c6e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6E9 4600 bytes
SHA-256: 616ea6df43782a3fbafa9f64564f164d6ea79840c0139a8a826724a57730b0f9
font_01_sfnt_off0000d684.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD684 10548 bytes
SHA-256: 2269551f9387eea09de31a1480200c4db17efd84224870cbf412b5c0808b6205
font_02_sfnt_off0000fa75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA75 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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