Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7df0b676d50c161…

MALICIOUS

PDF

73.4 KB Created: 2021-10-16 13:51:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-22
MD5: c52d6e91e201d2351abc8aae120cca83 SHA-1: 5c669976dc2e1f1c151f146223cee156472e6b4b SHA-256: d7df0b676d50c16117e1311a9da355f0314a088812385292583d2b87a77fe7ea
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The critical ClamAV heuristic identified this PDF as a phishing trojan. The PDF contains numerous embedded URLs pointing to a link farm hosted on disposable domains, as indicated by the PDF_SEO_DISPOSABLE_LINK_FARM heuristic. This suggests the document is designed to redirect users to malicious websites, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4750

Heuristics 4

  • 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
  • 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://beverleyannes.net/home/beverley/public_html/ckfinder/userfiles/files/jotaluv.pdf In PDF document text
    • http://kleinschadenexpert.de/userfiles/file/79874752965.pdfIn PDF document text
    • http://dtjxbpzx.com/filespath/files/20211002000858.pdfIn PDF document text
    • https://jagamimpi.net/contents/files/semopelotitazinavasibeki.pdfIn PDF document text
    • http://www.iece.in/userfiles/file/36390141053.pdfIn PDF document text
    • https://wct.goldcrownresort.com/magazine_files/files/kararaduzofalusesedi.pdfIn PDF document text
    • http://sameiroeventos.pt/ficheiros/fesifixitojokuxase.pdfIn PDF document text
    • http://www.fdconsult.qa/public/uploads/cms_files/15079890954.pdfIn PDF document text
    • http://magooferta.pl/uploads/fck/file/48481764908.pdfIn PDF document text
    • http://nfrostov.ru/upload/files/19947111607.pdfIn PDF document text
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1612fbf1642f35---92148419853.pdfIn PDF document text
    • https://oolong-dining-co.com/webroot/editor-uploads/files/54828898086.pdfIn PDF document text
    • http://tubietelbar.hu/uploadfile/28449473055.pdfIn PDF document text
    • http://jyjjapan.jp/files/ckeditor/files/48915319315.pdfIn PDF document text
    • https://thingstodobahrain.net/ckfinder/userfiles/files/24819584034.pdfIn PDF document text
    • http://taigesw.com/upload/files/sedex.pdfIn PDF document text
    • https://acp-luxusingatlanok.hu/ckfinder/userfiles/files/97313777785.pdfIn PDF document text
    • http://turningpointdigital.com/cote_dor_import/admin/ckfinder/userfiles/files/15112526328.pdfIn PDF document text
    • http://simonhoirup.dk/userfiles/file/tafanowufuwiwutebopuvaj.pdfIn PDF document text
    • http://hansungidschool.com/userfiles/file/majezonizutoxedaturewada.pdfIn PDF document text
    • http://trunghungplastic.com/luutru/files/46214241824.pdfIn PDF document text
    • https://nabil-doukali.com/userfiles/file/dogunix.pdfIn PDF document text
    • http://cnpair.com/userfiles/file/parumovop.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/HTGXzuRVGb4/uplcv?utm_term=difference+between+ram+and+processor+speedPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD842 10964 bytes
SHA-256: fefb6eabd3ceab0a0b77f6ec896d8661fd977a2d472f68a8d732a0052986b1ae
font_01_sfnt_off0000f194.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF194 17780 bytes
SHA-256: e166862bce7d5012d0f89d3d90960979516434f498614e8b1e46b11327210694

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