Malicious PDF — malware analysis report

Static analysis result for SHA-256 236919f924f2c1f7…

MALICIOUS

PDF

90.1 KB Created: 2021-08-06 18:41:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 06dc70fd8a7032274aedeba28b812d7c SHA-1: 5e4ffafedfc205c7f33267262559df4aad4089f0 SHA-256: 236919f924f2c1f7a39cf01e6131fe1d5ab0612efb7d5e491985fe4dcedfd11a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised websites and disposable hosting, suggesting a phishing or link-farming campaign. The presence of embedded URLs and the nature of the heuristics strongly suggest this document is intended to redirect users to malicious sites, likely for credential theft or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9158

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://wastran.ru/uplcv?utm_term=mpow+bluetooth+headphones+pairing+windows+10
    • http://khaskhaan.mn/uploads/userfiles/files/66663345616.pdf
    • http://konberdbio.com/upload/files/41977315516.pdf
    • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160d2def578823---726126609.pdf
    • https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160ad2e34c93c3---64077180090.pdf
    • https://inmaabiladi.com/userfiles/files/10890545654.pdf
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c04d1694764---wikiziguxunob.pdf
    • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e3a4524d6f---liguboritum.pdf
    • https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/39b64fec22f4df887bb766fcf5bc75c3/zotodolemopem.pdf
    • http://eska-lift.ru/userfiles/file/98343001537.pdf
    • https://ranagro.com/files/fegufovivesibojeromatew.pdf
    • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/v78fp97n0s9o52t5c6gh4islfb/pilojedeka.pdf
    • http://tinnaduraflex.com/uploads/files/96002128187.pdf
    • http://architettoangeli.it/userfiles/files/jisat.pdf
    • http://finproekt-msk.ru/userfiles/file/vefazolurixefewanivuma.pdf
    • https://mn-lawfirm.com/box/userfiles/file/57133810310.pdf
    • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f936c59914---jozutisojelujuzetulota.pdf
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/70b1b6a45d675c95787683200eb3db63/zikadovodunigakogifa.pdf
    • http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f74d336074---getopoxuzijaguwaf.pdf
    • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b476909d4---96751153816.pdf
    • http://xn--80aaae7amexjfdlfdfg.xn--p1ai/files/file/bawijis.pdf
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/9d2fcbd80b1b1f8410d3298b61331a0d/fanofuza.pdf
    • http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a07b981847b---70707671983.pdf
    • http://jdhs77.com/clients/58520/File/12581787981.pdf
    • https://iskoruma.com/upload/ckfinder/files/33606318439.pdf
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010b60.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B60 16792 bytes
font_01_sfnt_off00012377.bin
581e3c1cf1ef556888193ff13ca50d3dd6c3259de2ef91c704b4dc8990551c89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12377 11164 bytes
font_02_sfnt_off00013d22.bin
5ca96e391b3b797751e121e7f1ed6362e727a28471c971154b81387a329c4ae4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13D22 17548 bytes

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