Malicious PDF — malware analysis report

Static analysis result for SHA-256 47e14a351298d83d…

MALICIOUS

PDF

80.4 KB Created: 2021-07-04 17:16:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-02
MD5: d3e76a30ce96eb79e5352cecfe759b0f SHA-1: 03ce9baaf850b237d1fa1b311be0aaa2226996db SHA-256: 47e14a351298d83d291411298a0cf3eebcc0ea657fdc34cc3536393fda397b6f
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV. 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 suspicious score 0.4803

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://inwebjor.ru/uplcv?utm_term=the+conjuring+tamil+dubbed+full+movie+download PDF link annotation
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/ddf0d91c6c4679d49efcdda02b681b53/74184894210.pdfIn PDF document text
    • http://steakclubhn.com/campannas/file/popixovuzusasas.pdfIn PDF document text
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b0d01be444c---80571877812.pdfIn PDF document text
    • http://riskhedgetech.com/uploaded/file/108337649560bf9cd7beb7d.pdfIn PDF document text
    • https://jf-orvalho.pt/userfiles/file/simegonosokagefarevuvo.pdfIn PDF document text
    • http://jpind.pl/userfiles/file/rurigutop.pdfIn PDF document text
    • http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c405f337f5e---30206766542.pdfIn PDF document text
    • https://shaplaconsulting.com/app/webroot/ckfinder/userfiles/files/55646472908.pdfIn PDF document text
    • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160d254ef0bd70---kudaposasasikobixawa.pdfIn PDF document text
    • http://sns-russia.ru/userfiles/file/43206744996.pdfIn PDF document text
    • http://adabaskimerkezi.com/upload/file/nebegipatavoxegukawefafo.pdfIn PDF document text
    • http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/35aa8aa2065915d0ff3b7a578c191f38/57118552052.pdfIn PDF document text
    • http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607f0982bb750---25979706800.pdfIn PDF document text
    • https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/855m98oihnspkggo3jlqpc0jll/58267580842.pdfIn PDF document text
    • https://grupahatak.pl/admin/_fck_files/file/dimipimemow.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608a512a470b8---79636635847.pdfIn PDF document text
    • https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/1606d33c8b3a0e---87240479220.pdfIn PDF document text
    • https://capitaleny.com/wp-content/plugins/super-forms/uploads/php/files/f7eaf122ccf48acba6064272bd7bcd1b/25850643031.pdfIn PDF document text
    • http://broadviewlibrary.org/uploaded_bvlib/file/zubajuvu.pdfIn PDF document text
    • https://mmagame.com/userfiles/file/44442221315.pdfIn PDF document text
    • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d4e5b916fc5---mirirutezojemenaxetinogu.pdfIn PDF document text
    • https://accesoriosalmayor.com/images/userfiles/file/luwiremiwajilituteriz.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_off0000f72e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF72E 11240 bytes
SHA-256: a8e94f431fbeae808468b628aef2c6046ddd30d7dcf53e72f87d4a66e20a92c3
font_01_sfnt_off00011121.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11121 16512 bytes
SHA-256: 3a0ca6c9426fb77599d54bdc940ca5ebd1690baf3c320a7e29e201fdcc656b2b

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