Malicious PDF — malware analysis report

Static analysis result for SHA-256 03eb89e577f8fcb1…

MALICIOUS

PDF

83.9 KB Created: 2021-09-20 10:08:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: feb88eebf719126b22e7bbfc1d8357df SHA-1: ed4ac5335b7b94925789a5abccd5e3f91e99158d SHA-256: 03eb89e577f8fcb158599ca9de6e2b4ae7710b3cc4e67839a47f8abc2eb9432c
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains a link farm with numerous URLs pointing to PDF files, suggesting a phishing or malware distribution attempt. The presence of external URIs and the link farm structure indicate a likely spearphishing attachment attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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 http://aqbnb.com/uploadfile/file/30293912975.pdf In PDF document text
    • http://se-ty.com/uploads/userfiles/file/mizaji.pdfIn PDF document text
    • http://0975811252cool.linker.tw/files/48015705170.pdfIn PDF document text
    • http://giasuthienphuc.com/Images_upload/files/15970534295.pdfIn PDF document text
    • https://phu-komplex.pl/pliki/file/vatowevonilowovexu.pdfIn PDF document text
    • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/d0a4ec54406ea54f8657eeecfcb2d4b0/57867170567.pdfIn PDF document text
    • http://wxeina.com/userfiles/files/bevozinorezusugom.pdfIn PDF document text
    • http://altronic.pl/!mag2011/userfiles/file/8828008002.pdfIn PDF document text
    • http://starcity-vinhomes.vn/app/webroot/img/files/guzudesiza.pdfIn PDF document text
    • http://dishandspoonproductions.com/ckfinder/userfiles/files/pupekufidano.pdfIn PDF document text
    • https://hospvetcentral.pt/site/upload/file/xebipu.pdfIn PDF document text
    • http://auburn-properties.com/userfiles/files/44964576621.pdfIn PDF document text
    • http://geomanteia.com/userfiles/files/86868782029.pdfIn PDF document text
    • http://chicopharm.com/upload/files/lofumuzogopupesugu.pdfIn PDF document text
    • http://www.siscbolivia.com/admin/uploaded/fck/file/4065972049.pdfIn PDF document text
    • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e354b1279e---53666228225.pdfIn PDF document text
    • http://thingsantiquesla.com/userfiles/files/gapixutazuribujuwob.pdfIn PDF document text
    • https://ewt.cz/res/file/51128640686.pdfIn PDF document text
    • http://generale-bureautique.fr/gdb/files/file/78819233451.pdfIn PDF document text
    • http://studioaeditecne.it/userfiles/file/6894562344.pdfIn PDF document text
    • http://dep14kirov.ru/userfiles/file/7519206559.pdfIn PDF document text
    • https://etest.vn/app/webroot/uploads/files/18692265459.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=shadow+fight+2+titan+mod+apk+download+for+androidPDF 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_off0000d4f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4F3 11016 bytes
SHA-256: ac966738f853971cd510ddec24b39bd68ee2164bd5657d725716ce767c8ac906
font_01_sfnt_off0000ee38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE38 23128 bytes
SHA-256: 8ccc681b74398cdb98bfebfe7fcde946ac6906b917884c61d87ad78988633a15
font_02_sfnt_off00012a14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A14 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.