Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6e851b06856447b…

MALICIOUS

PDF

89.9 KB Created: 2021-07-13 12:45:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 05ef9a3d21ed78545dab1163be61eb0a SHA-1: 507e946a9d803c8c6234259327950a039a90168c SHA-256: e6e851b06856447b0cf135014233b4c2f1807528c8cdc2e66d8c2d59f175cb56
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected by ClamAV as Pdf.Phishing.Trojan. It contains numerous external URIs and link farm patterns, suggesting it is designed to redirect users to malicious websites. The PDF structure and embedded links indicate a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3658

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://pixomot.ru/uplcv?utm_term=love+quotes+that+are+deep PDF link annotation
    • https://www.zulilighting.com/wp-content/plugins/super-forms/uploads/php/files/2e0f1ecba82bb869280f1f50d978b63d/11020688121.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/h36kkppberu2ig18p7s021s487/muzesotunu.pdfIn PDF document text
    • http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160850b6c81665---1745543255.pdfIn PDF document text
    • https://metricgroup.it/uploads/file/teduzoselozizo.pdfIn PDF document text
    • https://nbtele.com/en/cache/fck_files/file/wilaxog.pdfIn PDF document text
    • https://zold-kommando.hu/files/85273726563.pdfIn PDF document text
    • https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbd228db5f8---60986418996.pdfIn PDF document text
    • http://tamker.hu/userfiles/file/89960501172.pdfIn PDF document text
    • https://abeess.com/userfiles/file/femabefomalamab.pdfIn PDF document text
    • http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/160aacee1acb2d---rebuzigodugikukajime.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/57hjdus975dc09g537bdoorkcu/39029431312.pdfIn PDF document text
    • https://digireg.org/upload/62572093568.pdfIn PDF document text
    • http://shhs69reunions.com/clients/e/e9/e92da0bc0099326815942f81a5c18dfc/File/moziwubikukosorotevanif.pdfIn PDF document text
    • http://pogservice.ru/userfiles/file/71871783087.pdfIn PDF document text
    • https://fasaac.org/temp//files/49501681361.pdfIn PDF document text
    • http://dsagco.com/Upload/file/moxewibobepinuroromewa.pdfIn PDF document text
    • https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/3e6846f8d2b67e80e0fe8e08c49067d7/37037266383.pdfIn PDF document text
    • http://shethof.ch/cgi-bin/dynamisch/file/sovizotizadilekasukunu.pdfIn PDF document text
    • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d554d59935---mowibesomiwuwuv.pdfIn PDF document text
    • http://www.ferm-matic.fr/upload/file/95813952073.pdfIn PDF document text
    • http://orbitsecurity.qa/pro_mvp_tech/uploads/file/pikurubaruzipudexa.pdfIn PDF document text
    • https://onhimalayas.com/ckfinder/userfiles/files/niziwobuzasubed.pdfIn PDF document text
    • http://murielbellhomes.com/userfiles/files/26179260719.pdfIn PDF document text
    • https://ivanamihic.com//files/sojojaboxefodegowoba.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_off00011a30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A30 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00013242.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13242 17508 bytes
SHA-256: 6d870c2981c1ff6799187407300a8940f11fe0cb6f0658fc75b76ddf96320bb6

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