Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a9f08919825fff5…

MALICIOUS

PDF

63.7 KB Created: 2021-03-03 18:33:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 3d45bc33c976642e615113a905187b1b SHA-1: 3b0bd362099226bcdd7bfadf48297e84442626cb SHA-256: 2a9f08919825fff5dfe625b99477ab813e6d9055fa46c571a4431c5413858084
186 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
  • 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.
  • 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://xajibur.ru/award?keyword=how+to+play+yiruma+river+flows+in+you+piano+tutorial PDF link annotation
    • https://cdn.sqhk.co/gesokusa/gcdjg9L/44852412693.pdfIn PDF document text
    • https://tunimesepet.weebly.com/uploads/1/3/1/4/131455680/324908.pdfIn PDF document text
    • https://cdn.sqhk.co/gediwuwanol/rCYgjjg/codigo_premium_brasfoot_2020_celular.pdfIn PDF document text
    • https://cdn.sqhk.co/sujubowip/cCubOhe/pudoliwopimumapirokane.pdfIn PDF document text
    • http://kitadopitunija.iblogger.org/24462632568.pdfIn PDF document text
    • https://databuzub.weebly.com/uploads/1/3/4/3/134373368/lufajeguzexojewedugo.pdfIn PDF document text
    • https://cdn.sqhk.co/nozujeraguje/je2jcji/xonegefuzi.pdfIn PDF document text
    • https://cdn.sqhk.co/veletafi/tgigfhe/emergency_dental_omaha_ne_114th_and_dodge.pdfIn PDF document text
    • http://vugatejomib.22web.org/cido_sulfhdrico_formula_quimica.pdfIn PDF document text
    • https://cdn.sqhk.co/jotapepikota/b9jjcgh/livirevitibikosike.pdfIn PDF document text
    • https://cdn.sqhk.co/xedasuzefer/JibFhfs/84933238737.pdfIn PDF document text
    • https://cdn.sqhk.co/sozodumupof/bEqVzgg/topps_champions_league_cards.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489414/normal_5fcbc6f58924d.pdfIn PDF document text
    • https://vulemozebo.weebly.com/uploads/1/3/4/6/134693025/sabisuxu_rujawapalo_wiralewepalaxo.pdfIn PDF document text
    • https://lonamejekewow.weebly.com/uploads/1/3/5/3/135396766/de734312bd17bc0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fokobawenola.epizy.com/bandages_plus_order_form.pdfIn PDF document text
    • http://fopugaxug.rf.gd/rodagijironirane.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_off0000bfbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFBB 5264 bytes
SHA-256: 0ec22ccc5606bc56f47fb09cbfd597b0a75c49384004ade70035ee2d5481396c
font_01_sfnt_off0000d1aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1AA 9376 bytes
SHA-256: 1fd8ef6c7580256adf6e3066c58e51780cb7c251acd187d0f3f8ee63dd02da90

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