Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a825a292fa69dd9…

MALICIOUS

PDF

86.8 KB Created: 2021-07-22 01:29:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: e874cca8f315140ea11b1d0f8b36e21e SHA-1: 28394b5e67942a25b537d5ba0700fddff8a9e1a7 SHA-256: 9a825a292fa69dd9a4b1a816f204854b739c3141a93d526b47cf8efc6dd46aec
156 Risk Score

Malware Insights

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

The PDF file was flagged by ML and ClamAV as malicious, with heuristics indicating it functions as a link farm pointing to compromised CMS uploads and disposable hosting. The embedded URLs suggest an attempt to direct users to potentially malicious content, likely for phishing or malware distribution. No scripts were extracted, limiting the analysis of specific execution behaviors.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9958

Heuristics 6

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/7qlgtuam4m1q5gujdeka7hepgh/ladotekaxutasubujajuji.pdf In PDF document text
    • http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abeee875efe---fuzigebewus.pdfIn PDF document text
    • http://mastera-mix.ru/ckfinder/userfiles/files/puxesut.pdfIn PDF document text
    • https://www.northernillumination.com/wp-content/plugins/super-forms/uploads/php/files/d30935858eda9a72fdff03b64812aa16/namejubuvodi.pdfIn PDF document text
    • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160abd4334f2aa---21832728387.pdfIn PDF document text
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160995d1895d13---virelabutupuxaromeviw.pdfIn PDF document text
    • https://agentcctv.com/userfiles/file/83358799756.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1ccceb6420---2148850104.pdfIn PDF document text
    • http://airconbank.com/upload/fckeditor/file/96302231852.pdfIn PDF document text
    • http://holycrossyouthministryasp.org/clients/f/fa/fa15eac34f6f8ef5a8ada011ffef1578/File/65836649652.pdfIn PDF document text
    • http://royalrep.com/userfiles/files/muvejuwit.pdfIn PDF document text
    • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/3d2b1db1bb38371ead5e7ecf996cd74f/jupifazerobotepitavuz.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c9d27cc274---7394748399.pdfIn PDF document text
    • http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202105010907433481.pdfIn PDF document text
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607bf5817a8d2---65946110328.pdfIn PDF document text
    • http://parkwaywest1974.com/clients/861606/File/nuxerizapadokutozupo.pdfIn PDF document text
    • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/ah11qh7a08627ndd5dn2juioap/14997251011.pdfIn PDF document text
    • http://gopherandsquirrelcontrol.com/admin/images/file/wasemavunebum.pdfIn PDF document text
    • https://universitecentrale.net/uploads/FCK_files/file/ruzavarugulo.pdfIn PDF document text
    • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160954b7c27eb5---3051582074.pdfIn PDF document text
    • https://detskeihriska.eu/ckfinder/userfiles/files/14582505943.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=drill+disk+crackPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00012bb7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x12BB7 19748 bytes
SHA-256: 3ea6672a8be9b7651831d9d53c05a44b160fe5de6f9b7e3f7adbb4ea5c409208
font_00_sfnt_off0000d096.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD096 10000 bytes
SHA-256: 6d5727f1af1ef78ab411d06e4c7371e49d66e1ca210adda3cd798966e4e9c736
font_01_sfnt_off0000e6d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6D4 17584 bytes
SHA-256: 5b6818be47467b49f9b40b880cabeac7572af7a9bd2ca05a7dec478721ee03ae
font_02_sfnt_off000113a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113A6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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