Malicious PDF — malware analysis report

Static analysis result for SHA-256 02e7123dce1e975a…

MALICIOUS

PDF

73.4 KB Created: 2021-08-27 21:30:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 7cc5fc228a688571beb1cfde755ee3c5 SHA-1: 585985351d91d8c423b76e9329a998f4330d4689 SHA-256: 02e7123dce1e975a79b653cd659e60beeb2b3297bce00107651a877c87e69315
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 links to external websites, many of which are hosted on compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The presence of embedded URLs and the nature of the heuristics suggest this PDF is part of a phishing campaign or a distribution vector for further malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4750

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://khanikango.in/file/midetexatodobovifom.pdf
    • https://drticket.ir/basefile/drtiketcom/files/83823505275.pdf
    • https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/ibdicqeju40s180gl7jqglmd6g/xatakobazuru.pdf
    • http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084150014997---juterunoxabijikowixamas.pdf
    • http://danies.ru/ckfinder/userfiles/files/dugeduduji.pdf
    • https://www.treehousecare.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607f841dea85d---28862197612.pdf
    • http://tasarimak.net/ckfinder/userfiles/files/75145227460.pdf
    • http://jedwines.com/cmsCart//upload/file/nafujewoverulilejub.pdf
    • https://ukdirectremovals.com/wp-content/plugins/super-forms/uploads/php/files/6507b27120cbedc5592b97cdf3835d9a/wabizij.pdf
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609f2229b7bb9---88007677951.pdf
    • https://stmarys-perthamboy.com/upload/File/21940028373.pdf
    • http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607ff0fa17b59---81606424994.pdf
    • http://iglozawiercie.pl/zdjecia/file/rugedasitumaf.pdf
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afb7dbdee96---31337980801.pdf
    • http://akcjonariusz.com/UserFiles/file/saradarewinanimatajuz.pdf
    • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160d3f3b505ac1---67832707524.pdf
    • https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076ef2c82141---fosetutunazak.pdf
    • http://thegioituigiay.net/uploads/files/58661159563.pdf
    • https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/e6008a404e998ee7698322bfb72eaa02/xatofirenizetuzirawu.pdf
    • http://monkey-do.net/userfiles/file/39226342400.pdf
    • https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/e7eb46de24e2b5dc4f0ec47bca372171/soxinegijoriji.pdf
    • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af80ac60a4f---webezatiradewukezesuvite.pdf
    • http://livelyway.com/ckfinder/userfiles/files/53281265701.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=harry+styles+folklore
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d8a2.bin
9191a2cb92ca005e20b6c8634bbca467e55fb62453aae1b3f4410751c081bde0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD8A2 10208 bytes
font_01_sfnt_off0000efbc.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFBC 16792 bytes

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