Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3ceba72ce88969f…

MALICIOUS

PDF

91.1 KB Created: 2021-06-28 08:02:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 6cc7ce0b9bf51d4a4f9c7ccf5aee7c90 SHA-1: 378499db54bf5f807396f3b785441a1e490dcf1c SHA-256: e3ceba72ce88969f6004992c99744867685b3a88c7c60721fe026bd09928e629
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating it likely contains malicious content. The presence of numerous URLs pointing to compromised WordPress upload directories suggests a distribution mechanism for further malicious payloads. The file's structure and embedded links are consistent with phishing or malware delivery campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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.
  • 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://crewmak.ru/uplcv?utm_term=how+many+questions+do+you+have+to+get+right+to+pass+the+praxis
    • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1609964fb28f56---jogepasove.pdf
    • http://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c29971d5f5a---patije.pdf
    • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160aa945347ca2---88609152672.pdf
    • https://ikima.fr/uploads/file/72586837486.pdf
    • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16077c73fe718b---901612635.pdf
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf01d55fba---vonelukuma.pdf
    • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0d2d601e81---39003320866.pdf
    • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1609f05bd76b8f---kavuweze.pdf
    • http://chongthamnguoc.vn/img/files/449988806.pdf
    • http://naturallabs.fr/userfiles/file/27313944348.pdf
    • https://pensiunea-escape.ro/ckfinder/userfiles/files/77183529967.pdf
    • http://co-wemart.com/careeruserfiles/file/jezutepupuvopufi.pdf
    • https://briljant-maleri.se/UserFiles/files/vores.pdf
    • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/0ec71aa7a8be2dff17b8b2c2806f6a69/35854167260.pdf
    • http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092cd8e80775---leside.pdf
    • https://santchavarabed.in/ckfinder/userfiles/files/40820261265.pdf
    • http://kevinmcallisterlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/72766210456.pdf
    • https://www.sacproblemleri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090e51c0607c---gajogafulipov.pdf
    • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608600b26a9d4---javez.pdf
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d1d988c9a2---wulumirukeludasutalaruva.pdf
    • https://ajitcoatings.com/uploads/8820802353.pdf
    • https://coachtourbusrental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f0af14556c---nojubuvaxem.pdf
    • http://www.justgiveahand.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a1e1f1376dc---safileru.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • 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_off0000faf1.bin
a7990d99dc40e0aa4105e19d999a51ce9013e19c1c8eb128e093005f710471dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFAF1 11400 bytes
font_01_sfnt_off00011530.bin
e40909ae44467683db6528b91d29ef980d9a74714eb23cf77e5d5fd738ab1b46		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11530 18052 bytes
font_02_sfnt_off000144d3.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x144D3 16792 bytes

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