Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d09ff0a4e38d59b…

MALICIOUS

PDF

74.7 KB Created: 2021-09-18 04:25:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 47abfe1a16ba31c549804bbc6f8db177 SHA-1: 13e1417505329c9c6faf98419c50087373392a35 SHA-256: 7d09ff0a4e38d59b52c2a66ff0678f5244a76bb4240a3bfe56d2fa07e87a2f83
124 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, many of which point to disposable domains and are structured as a link farm, a common tactic for phishing or distributing further malware. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic specifically flags this behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6966

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 https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c90f7c796f6ddd6e3d75f2bd1c5987f2/60366352541.pdf In PDF document text
    • http://electric-kernbichler.at/91355037189.pdfIn PDF document text
    • http://twilaw.com/files/files/99783371982.pdfIn PDF document text
    • http://laptopcuhaiphong.vn/upload/files/piwopapozenak.pdfIn PDF document text
    • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/161306a58860a9---94376574782.pdfIn PDF document text
    • http://fasson.vip/images/editor/files/gafirol.pdfIn PDF document text
    • https://aristi-trap.com/upload/users/files/54049260182.pdfIn PDF document text
    • http://www.iciparis.ru/ckfinder/userfiles/files/65681016314.pdfIn PDF document text
    • https://weishinclinic.com/uploads/files/202109130208525916.pdfIn PDF document text
    • https://aakritidigitals.com/userfiles/files/37370927912.pdfIn PDF document text
    • http://mizuho-co.net/file/ck/files/ribavewenovixizeruz.pdfIn PDF document text
    • http://elrey-uslugi.ru/media/file/maviwimivigupunebigaxit.pdfIn PDF document text
    • http://qishuochem.com/siicea/userfiles/file/pozek.pdfIn PDF document text
    • https://dm288.com/slicice/file/37337295282.pdfIn PDF document text
    • https://www.mppoa.cloudlinesystems.com/assets/ckfinder/userfiles/files/nedikolofonazipo.pdfIn PDF document text
    • http://sahamit.net/userfiles/file/69812624951.pdfIn PDF document text
    • http://ux-school.ru/files/files/8984055267.pdfIn PDF document text
    • http://dywin.com/uploadfile/files/vapegegeza.pdfIn PDF document text
    • http://quinta.cl/upload/files/pikivotevupatavos.pdfIn PDF document text
    • http://yey.uw52.com/upload/files/besezazarebibapofo.pdfIn PDF document text
    • http://losmarinoslanzarote.com/marinarubicon/admin/file/mibuvagozefupa.pdfIn PDF document text
    • http://barudan.hk/UploadFile/file/20210913180850319.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=intro+maker+hacked+version+apk+downloadPDF 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_off0000d513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD513 17156 bytes
SHA-256: b7d27f07fea7f139bf43b05c29147cdf0189e708c8483428a4c7cb91b4410ec3
font_01_sfnt_off0001018d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1018D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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