Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc2390f9b1c5264e…

MALICIOUS

PDF

73.0 KB Created: 2021-03-05 13:33:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 1b9ab314dc3f2bb379f36d6611e8a66c SHA-1: 3fb7ee37855e6779708213fcd2b117f4b71501c9 SHA-256: bc2390f9b1c5264e09878f17674b32ae81c168aa5ea745cb60a77e47b31cb4f8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://midufefew.ru/award?keyword=how+to+get+a+ssa+1099 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4462093/normal_600c371b81814.pdfIn PDF document text
    • http://mujoxoluvisukid.getenjoyment.net/fomavotixebedamivopuw.pdfIn PDF document text
    • https://cdn.sqhk.co/gabunufu/Ekaje8F/katejezabu.pdfIn PDF document text
    • http://rivilidopu.medianewsonline.com/85203652456.pdfIn PDF document text
    • https://cdn.sqhk.co/xixujipum/hZsZHF5/55792792608.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471971/normal_5ff50117a5fe7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420451/normal_5fd9f6a146a60.pdfIn PDF document text
    • http://vikarevu.22web.org/snap_history_eraser_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/nisugavu/dRtWb4a/68225715733.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vipuzala.myartsonline.com/wii_mini_console_walmart.pdfIn PDF document text
    • http://mafofeguf.epizy.com/padepit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84f32c9f-78c1-476c-8c48-e9011d0daede/how_do_you_put_a_book_title_in_mla_format.pdfIn PDF document text
    • http://gigitepusiligo.epizy.com/chennai_express_full_movie_480p_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef79a550-3317-4bc2-9cd5-51eee6ef2d50/xegajaf.pdfIn PDF document text
    • http://dibulazovila.rf.gd/data_analysis_reports_examples.pdfIn PDF document text
    • http://kabekexivebinef.epizy.com/35835121734.pdfIn PDF document text
    • http://wufalejopasedor.epizy.com/wajebiwonabal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/676c14b3-af37-489c-a2aa-bf054398c8e1/nepaxufogumunuxuvona.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8414740-ea36-4088-88c1-715eb4f23394/how_to_add_image_to_gimp_layer.pdfIn PDF document text
    • http://wuwedilejom.myartsonline.com/65734387468.pdfIn PDF document text
    • http://vavijiguzedimeg.epizy.com/set_android_sdk_path_windows_10.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_off0000e198.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE198 5128 bytes
SHA-256: ec81197f7b7aa20a32133b037faf74d0c7cea81137c94779445268072b3a0d0c
font_01_sfnt_off0000f335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF335 10460 bytes
SHA-256: 5f63195dd242ae0a55563d5a7ebb7c2f07ed3c46cf392c6601bd9476c12cdc52

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