Malicious PDF — malware analysis report

Static analysis result for SHA-256 f14fb573bdabc016…

MALICIOUS

PDF

67.2 KB Created: 2021-02-21 06:56:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0aa6e5ce1b51904f3f6553abc69bcc25 SHA-1: 52eb3fc58b9f1b3dab075820d3c393fc4a1a7703 SHA-256: f14fb573bdabc0164502eee21a25ccf09db2c8ded2b993296572c23bcc36d801
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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://bologen.ru/wix?keyword=air+guide+rame PDF link annotation
    • https://xuxukiworizep.weebly.com/uploads/1/3/4/7/134723333/dojixowevogalo.pdfIn PDF document text
    • https://sekagerufelijet.weebly.com/uploads/1/3/5/9/135965199/xafavun.pdfIn PDF document text
    • http://katowad.22web.org/87988619552.pdfIn PDF document text
    • http://xsale.trade/amarna_letters_translationlkxru.pdfIn PDF document text
    • https://kixarazebeda.weebly.com/uploads/1/3/0/7/130776474/2051585.pdfIn PDF document text
    • http://mixed-rootwork.com/kugofijiwafajemond1wv1.pdfIn PDF document text
    • https://gazumewus.weebly.com/uploads/1/3/4/9/134901575/1fd310143.pdfIn PDF document text
    • https://ziloxewimufe.weebly.com/uploads/1/3/0/8/130813797/xivafejanoguwunak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447093/normal_603168ae643a4.pdfIn PDF document text
    • http://kataeta.club/macbeth_gcse_revision_notes6hvne.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530429/normal_5fe4287e57fa2.pdfIn PDF document text
    • https://lobavasato.weebly.com/uploads/1/3/1/4/131483685/15b5ec4c.pdfIn PDF document text
    • https://rogefuza.weebly.com/uploads/1/3/4/6/134688393/jibofiworotad-buxufokovamuw-rojena-bisebozena.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://disidigepaxu.rf.gd/vofirumawimuvew.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/backup_whatsapp_from_ios_to_android.pdfIn PDF document text
    • https://s3.amazonaws.com/sefiwegegagu/implementation_plan_template_smartsheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/belaxofifofesazozo.pdfIn PDF document text
    • https://s3.amazonaws.com/dibedamoka/sitibezujafifozokuxapot.pdfIn PDF document text
    • http://xekurenu.rf.gd/cerulean_cave_fire_red_guide.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_off0000ccba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCBA 4924 bytes
SHA-256: e9efdd4036f6a77de817f1ade73b98a1b12763098a3175247873fdbf12d87e75
font_01_sfnt_off0000dd66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD66 10124 bytes
SHA-256: ccaa1101c4605172d7567af5ee68af966329fc291072d3e10bb990db68ff2df2

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