Malicious PDF — malware analysis report

Static analysis result for SHA-256 46b85afacda2d8f5…

MALICIOUS

PDF

70.4 KB Created: 2021-03-02 19:48:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 096fc335b93a9b8af8ef0b9c08a3cb97 SHA-1: a2ec50da26d8e2fc1a9894d41b27329e5bf0767d SHA-256: 46b85afacda2d8f59d08892737e61eee58b97fd24a710fde3771dee06097f5ab
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=venn+perplexors+level+c+answer+key PDF link annotation
    • https://cdn.sqhk.co/navimoxa/7piiGgi/mizefipu.pdfIn PDF document text
    • https://pokifinib.weebly.com/uploads/1/3/4/0/134017941/pugupot.pdfIn PDF document text
    • https://cdn.sqhk.co/josipinu/efZghTZ/fuzusimab.pdfIn PDF document text
    • https://cdn.sqhk.co/dezorevukor/Tjcggis/unsolved_missing_persons_nj.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/Phhc3ie/57951408332.pdfIn PDF document text
    • https://kaginugopaz.weebly.com/uploads/1/3/4/3/134310825/tabegitufal.pdfIn PDF document text
    • http://pomuropujuj.22web.org/goalkeepers_report.pdfIn PDF document text
    • https://rilavowa.weebly.com/uploads/1/3/2/7/132740415/wogafebogafim-dibexigojutodod.pdfIn PDF document text
    • https://bubebozozuj.weebly.com/uploads/1/3/1/8/131871643/kexilepoleved.pdfIn PDF document text
    • https://cdn.sqhk.co/bujomukoda/ifVf7hi/33896903100.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427504/normal_5fc7c5e1d742a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412588/normal_602a82531b6c6.pdfIn PDF document text
    • https://cdn.sqhk.co/fexejikexew/fH4jchj/99353972652.pdfIn PDF document text
    • https://zemotoru.weebly.com/uploads/1/3/2/6/132695551/4973803.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470833/normal_6009e389acfa2.pdfIn PDF document text
    • https://cdn.sqhk.co/nazamesuwute/iinjcge/34689085275.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://wuduzinemaz.rf.gd/cg_comedy_video_hd_2019.pdfIn PDF document text
    • http://pimobepetokonud.myartsonline.com/71881087526.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000caf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAF3 4936 bytes
SHA-256: 907b803746bc83b4468caec7d6e9455cad2de88d02b4e560faea3c354f4ab08a
font_01_sfnt_off0000dbd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBD6 10152 bytes
SHA-256: 95b63f510a74907704e0eb19eecef231867312f5d0d10c64bd31823a8bc7b54d
font_02_sfnt_off0000fe87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE87 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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