Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ac884c906424c0b…

MALICIOUS

PDF

84.9 KB Created: 2021-10-06 17:55:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 4790dcf4a29370d6b68711ebf0366682 SHA-1: d45b3803fc3d5bbaeddcfb78ae9f0f1e242fada5 SHA-256: 1ac884c906424c0b2bf9b5a6886833547c85bdb36ef80f443da4a26aaa727034
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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://pixomot.ru/uplcv?utm_term=insomnia+during+first+trimester PDF link annotation
    • http://xn--80aantfcaehjbxzf1m.xn--p1ai/userfiles/file/39323180166.pdfIn PDF document text
    • https://agronlogistics.com/userfiles/files/61379760897.pdfIn PDF document text
    • http://anthonygillant.com/userfiles/file/gutopevevoxasusegukuwobof.pdfIn PDF document text
    • https://accesoriosalmayor.com/images/userfiles/file/lazenatapewiku.pdfIn PDF document text
    • http://theloanwala.com/userfiles/file/61326587522.pdfIn PDF document text
    • http://artanuji.ge/admin/ckeditor/ckfinder/userfiles/files/83793810308.pdfIn PDF document text
    • https://kligi.viart.lt/ckfinder/userfiles/files/xosadamiwerulunapa.pdfIn PDF document text
    • https://voziky-paletove.cz/mctree.cz/pictures/other/files/vipubul.pdfIn PDF document text
    • http://civicwomen.com/ckfiles/files/nuxawo.pdfIn PDF document text
    • http://tlznailspa.com/media/files/vuwolinexu.pdfIn PDF document text
    • http://mextro.de/upload/files/fenafurafeluno.pdfIn PDF document text
    • https://www.la-providence-ehpad.fr/ckfinder/userfiles/files/72925982118.pdfIn PDF document text
    • https://masini-de-ambalat.ro/images/userfiles/pasowuve.pdfIn PDF document text
    • http://archiw.bibliotekalesmierz.eu/img/upload/files/gugerimumepenutopo.pdfIn PDF document text
    • https://valenciamaids.com/userfiles/files/bogitepali.pdfIn PDF document text
    • https://cuacuonbentre.com/upload/files/69819188062.pdfIn PDF document text
    • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/161541d60e0446---legijedejokovowaluku.pdfIn PDF document text
    • http://portalcom-b2b.es/img/user//file/_0245565001631085815.pdfIn PDF document text
    • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/b1630d490ceb171c54dcfec7e59123e4/darix.pdfIn PDF document text
    • http://tuvanthanhlapcongty.biz/upload/ck/files/8199503118.pdfIn PDF document text
    • https://vanphongphamhienluong.com/upload/files/waveromomudi.pdfIn PDF document text
    • https://lighthousemacau.com/html_upload/file/30774749545.pdfIn PDF document text
    • http://nwatchonline.net/userfiles/file/18959308287.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e41e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE41E 18772 bytes
SHA-256: 6f042d74ca5689eee2d1cd0db9b1cb14d7e257f6a18fc6fcac86cc198afaa6e6
font_01_sfnt_off00011522.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11522 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012d39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D39 10704 bytes
SHA-256: 27f75fe520d2920459324ec929b9d67e96d4d69dc942d50212a2445c48c6584b

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