Malicious PDF — malware analysis report

Static analysis result for SHA-256 f52ae3cd88c2263b…

MALICIOUS

PDF

62.3 KB Created: 2021-09-19 03:17:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: f149df8c17cc2ab664a8140afaed97d1 SHA-1: 8e0119e4dd93f75fbb664c3c03b70afe41b3e844 SHA-256: f52ae3cd88c2263bd7fbb040503c63d356c6e70e52643f5f8f550d6fad6cba57
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which point to suspicious domains and are likely part of a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with phishing lures or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9121

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://theorientgarden.iorderfoods.com/uploads/files/dofikizegavoruzoleb.pdf In PDF document text
    • http://jawarakreasi.com/file/waragamonimafaraziwozo.pdfIn PDF document text
    • http://gavinlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wowezeluj.pdfIn PDF document text
    • https://monyetmesum.com/contents/files/17927295573.pdfIn PDF document text
    • http://thegioicamdo.com/upload/files/worugotu.pdfIn PDF document text
    • http://pc580.cn/upload_fck/file/2021-9-2/20210902044844106997.pdfIn PDF document text
    • http://luxlustry.ru/img/upload/batusuxona.pdfIn PDF document text
    • http://keralabiblesociety.com/fck_uploads/file/tewewatajapabibivezivu.pdfIn PDF document text
    • http://askaudit.ru/price/89666382392.pdfIn PDF document text
    • https://oncallanatomist.com/ckfinder/userfiles/files/xiteluvumatopemufesifoka.pdfIn PDF document text
    • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/0a6c6cf774bb93536083cba8089ac05e/1455199275.pdfIn PDF document text
    • https://speculatio.in/ci/userfiles/files/jagiwekapepejebirozud.pdfIn PDF document text
    • http://zeci.nl/im/image/rudututuwafiba.pdfIn PDF document text
    • http://gerastar.com/userfiles/file/fezurutonimewuwudux.pdfIn PDF document text
    • https://anaksemut.com/contents/files/gavanog.pdfIn PDF document text
    • http://motolargo.pl/userfiles/file/17956833834.pdfIn PDF document text
    • https://alshamiltrading.com/alshamilfiles/file/tirorufigivadowa.pdfIn PDF document text
    • https://alharithiforcameras.com/ckfinder/userfiles/files/sixawevaxetapibovuketazu.pdfIn PDF document text
    • http://dxline.eu/userfiles/file/xavupowuwogepe.pdfIn PDF document text
    • http://satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/kadijarowigofenamadudu.pdfIn PDF document text
    • http://dgkno.cn/upload/xenojopuzazirexuwurofijoj.pdfIn PDF document text
    • https://evpersoneli.net/ev-personeli/file/61682740960.pdfIn PDF document text
    • https://nonbodepsg.com/uploads/files/rekemexakigikirepuvow.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=apowermirror+64+bit+download+crackPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c782.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC782 17304 bytes
SHA-256: e0eb2027563b569c723912435da2f9e214bde6998b2acb587b1c2a0d47a0e8c6

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