Malicious PDF — malware analysis report

Static analysis result for SHA-256 201227500e5380a5…

MALICIOUS

PDF

78.0 KB Created: 2021-08-11 22:48:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-02
MD5: e339aafce6ff55af5a0585d4414ad698 SHA-1: e0d549dcfcf10862ca838da05142c7dae4219501 SHA-256: 201227500e5380a5e13cd8c1960fbc46ea53f38e81e85e22cea71384a5b6119a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8255

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 https://chcial.ru/uplcv?utm_term=descargar+pokemon+x+para+pc+citra+32+bits PDF link annotation
    • http://letsbelegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/jolivesuwunipolula.pdfIn PDF document text
    • http://omonetach.pl/foto/ilustracje/file/23634685672.pdfIn PDF document text
    • https://glbtrader.com/userfiles/file/97257792772.pdfIn PDF document text
    • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b171e8b6931---petikaxalibipumukof.pdfIn PDF document text
    • http://covinahigh1980.com/clients/1/14/147ee80f0cf2e08ca1b5067d21485a43/File/41013744335.pdfIn PDF document text
    • http://watsonwilliamsreunion.com/clients/82103/File/2693532583.pdfIn PDF document text
    • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/tr256v163n4rebfrpa4k3cnvae/22473139324.pdfIn PDF document text
    • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607a3704044e3---xerin.pdfIn PDF document text
    • https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/4a03c73be39e4080d2cb4f3307f96dd6/99286802968.pdfIn PDF document text
    • http://nousgarage.com/userfiles/file/63771270026.pdfIn PDF document text
    • https://lienlacanien.com/img_pages/file/7795869663.pdfIn PDF document text
    • http://sieuthibongda.net/ckfinder/userfiles/files/xufilu.pdfIn PDF document text
    • https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/27785c33872e816c4337f3fbe661ae29/60822396442.pdfIn PDF document text
    • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d2fad992ca4---lupobiwoxeta.pdfIn PDF document text
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160c9b44a4545a---88736275159.pdfIn PDF document text
    • https://thietkeweblongan.com/upload/files/tolokemosidakidares.pdfIn PDF document text
    • http://taborcapitalpayment.com/clients/d/d0/d0a3925ee25d0adc8806453b18bccccc/File/madejox.pdfIn PDF document text
    • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c4d798bf47---gujabusida.pdfIn PDF document text
    • http://solar-makernavi.com/ckfinder/userfiles/files/pupukuwubuvomida.pdfIn PDF document text
    • http://augustaelectricalwork.com/editorData/file/58867400394.pdfIn PDF document text
    • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/ngov3vum5avi7kj4jkncgt8cv0/24451679170.pdfIn PDF document text
    • http://yishiweb.com/upfiles/files/20210808_092151.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/58572c111eed454230d68ce64f553e3d/wowelosizazemikuvakad.pdfIn PDF document text
    • https://wegofa.com/userfiles/file/baritazume.pdfIn PDF document text
    • 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_off0000f385.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF385 18604 bytes
SHA-256: 0a8ae384728081bf87cfb1414cec142fa2404d331134f73e5e4d9e19e89d7b27
font_01_sfnt_off000122db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122DB 11300 bytes
SHA-256: a8eba9dd78fca4ddbab1e5c92842e5e774fa5ebf9e3ba83916a105581549a7fd

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