Malicious PDF — malware analysis report

Static analysis result for SHA-256 09ba3db24b335680…

MALICIOUS

PDF

72.8 KB Created: 2021-03-02 18:25:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: bae3016680baa0e2a42b984893d43f13 SHA-1: c2d8502a275ff8ad98574a0e4dbca819fc776df8 SHA-256: 09ba3db24b3356809a41cce2e4699a56c9e2b78034eb8237e9074421c3024bff
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://golowaki.ru/award?keyword=how+to+clean+a+thetford+toilet PDF link annotation
    • https://gafewifem.weebly.com/uploads/1/3/1/3/131379815/9558279.pdfIn PDF document text
    • http://rusagobaloregir.22web.org/ribijazowupebevopa.pdfIn PDF document text
    • https://cdn.sqhk.co/moxawitab/jfhjayy/real_steel_movie_for_free_online.pdfIn PDF document text
    • http://bet-info.ru/muvuxivxu3t.pdfIn PDF document text
    • https://cdn.sqhk.co/sozodumupof/dfijdhj/90024232290.pdfIn PDF document text
    • https://cdn.sqhk.co/wanolugago/I7iajbB/jibovokejota.pdfIn PDF document text
    • https://winenexosipagep.weebly.com/uploads/1/3/2/8/132814343/bfa6f1.pdfIn PDF document text
    • https://cdn.sqhk.co/rirerujel/agffjiJ/5349164608.pdfIn PDF document text
    • https://ramasiwo.weebly.com/uploads/1/3/5/3/135390431/dusitalabe-zilipe-fedafebukili.pdfIn PDF document text
    • https://cdn.sqhk.co/moxoxitij/h1QyOBj/black_gospel_christmas_songs_playlist.pdfIn PDF document text
    • https://cdn.sqhk.co/momebuman/pigWjcd/world_war_2_books_fiction.pdfIn PDF document text
    • https://cdn.sqhk.co/zadoweferoxe/cHig6oj/98876901209.pdfIn PDF document text
    • http://termometr-medikal.site/afro_brazilian_tarot_book4vfc9.pdfIn PDF document text
    • https://dubobovutorikug.weebly.com/uploads/1/3/5/3/135332124/vufodizuloju.pdfIn PDF document text
    • http://sewaseg.22web.org/riwapitovabepes.pdfIn PDF document text
    • https://wigobozigor.weebly.com/uploads/1/3/5/3/135345973/9980194.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bopamebedozupux.epizy.com/77043517747.pdfIn PDF document text
    • http://kexejitevomosef.rf.gd/zajatopares.pdfIn PDF document text
    • http://mifijikamipupu.epizy.com/bharat_ane_nenu_cinema_hd.pdfIn PDF document text
    • http://ninonasoligu.rf.gd/rizokuwezijiwodutoted.pdfIn PDF document text
    • http://gudodatu.rf.gd/lusuzanifoxozu.pdfIn PDF document text
    • http://vorakufi.epizy.com/17038495201.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_off0000e22b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE22B 4984 bytes
SHA-256: 0eaf098757cf63a7caed4ddd4760e1fc882c6d99eb21220ce58b5dfd4ca5871e
font_01_sfnt_off0000f32b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF32B 10112 bytes
SHA-256: ad374161585abb5a31a04d6534d2cef655cba8d385728813378cd556b12fb7c7

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