Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e4d9a77ca7b4017…

MALICIOUS

PDF

72.5 KB Created: 2021-09-11 00:35:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 7eb07efb8e643f102e83f3aabcb82bbc SHA-1: 3dbe27fb77d386fbe40bf22f6d47883e389507d8 SHA-256: 3e4d9a77ca7b40178e10e708de1c54e0d6f0c2c3f5563e231ffc2018057bc18a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://strongpointmarketing.net/userfiles/file/parababowupeloxa.pdf In PDF document text
    • https://impactmediaresources.com/userfiles/file/lumisa.pdfIn PDF document text
    • http://vektor-bezpeki.com/userfiles/files/29571552717.pdfIn PDF document text
    • http://chocoenglish.com/_UploadFile/Images/file/jusevigiwemafajebun.pdfIn PDF document text
    • http://metabolit-plus.ru/files/file/dotir.pdfIn PDF document text
    • http://awkontrakt.pl/ckfinder/userfiles/files/betufogatopoxepivasuxeg.pdfIn PDF document text
    • http://toyotarent.kr/FileData/ckfinder/files/20210903_8F5B52AD19138A73.pdfIn PDF document text
    • http://china-spec.ru/userfiles/file/vadojimazofelixolojuruk.pdfIn PDF document text
    • https://lyna-garage.com/htdocs/cljr/data/files/tezubep.pdfIn PDF document text
    • http://wxbeimei.cn/upload/ckimg/files/202109021806348082.pdfIn PDF document text
    • http://alpha-th.com/userfiles/file/kifisejiguvopalopiboleko.pdfIn PDF document text
    • http://yugang360.com/upload_fck/file/2021-9-11/20210911051708594342.pdfIn PDF document text
    • http://administratieindex.nl/images/uploads/fixikenuwovigidaluwivo.pdfIn PDF document text
    • https://mintedimages.com/ckfinder/userfiles/files/xixidadaxen.pdfIn PDF document text
    • http://logopeda-empatia.pl/content/file/76890634143.pdfIn PDF document text
    • http://kaupa.cz/userfiles/file/79866246830.pdfIn PDF document text
    • http://eastendmediation.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kumoxamonufasukedukabedul.pdfIn PDF document text
    • http://eugensa.lt/app/webroot/uploads/userfiles/files/femuseva.pdfIn PDF document text
    • https://receptabc.hu/images_banner/files/4041388917.pdfIn PDF document text
    • http://ourconn.com/userfiles/file/202109012141452181.pdfIn PDF document text
    • https://gsm.company/ckfinder/userfiles/files/kadizafeg.pdfIn PDF document text
    • http://ptairsupply.com/userfiles/file/gojobinosebe.pdfIn PDF document text
    • https://mlbcsimleague.com/ckfinder/userfiles/files/lotanizidopimew.pdfIn PDF document text
    • http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/16137f257b74f2---zagabaxupirobivomumis.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=john+wick+parabellum+123moviesPDF link annotation
    • 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_off0000b5f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5F7 11360 bytes
SHA-256: 6abe92181283f283b49b5b997b968b25597460a520d26fa0efb1951f43ac0630
font_01_sfnt_off0000d081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD081 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000e893.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE893 16788 bytes
SHA-256: 8046a7afeb3e907e64d30515483f6b226f9d3762086cedaa88dc365a2802c42c

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