Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb06f469f47f5fa8…

MALICIOUS

PDF

87.0 KB Created: 2021-07-06 22:44:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 3aacd4412041b5186c0868a2a6d6be55 SHA-1: 2f44b8f5d817b2fbc4791bb9f1729790c2e3e4a0 SHA-256: eb06f469f47f5fa8ee1a89f6067e055dcddbed8d0ef870a269f6c7c88ea31c5e
156 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to compromised websites and disposable hosting, suggesting a phishing or malware distribution scheme. The PDF structure and embedded links are consistent with a spearphishing attachment used to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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 http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/4942931dc60a2a1f24610839048da078/36738983866.pdf In PDF document text
    • http://prvugkh.ru/uploads/files/junawosuduwizisajuzeve.pdfIn PDF document text
    • http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093d52e4bcf6---sutamuliwubozerepux.pdfIn PDF document text
    • http://ildungrice.com/fileupload/fckeditor/file/tawelexagujoxowodewazozer.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a416eca9d2e---tinixabapilatumitolubapub.pdfIn PDF document text
    • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/ngcm65bnput317d5hu0lilau5q/jorijimozepagemerol.pdfIn PDF document text
    • https://eurouniversal.eu/ckfinder/userfiles/files/vixom.pdfIn PDF document text
    • https://svingenieria.cl/userfiles/file/ruwizazodon.pdfIn PDF document text
    • http://k1a.ru/images/files/file/biwaxesikefo.pdfIn PDF document text
    • http://www.sempresaude.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bab2983bf9f---7031048235.pdfIn PDF document text
    • http://www.contectrade.hu/fckfiles/file/21295958773.pdfIn PDF document text
    • http://feast.to/upd_file/zexowefuje.pdfIn PDF document text
    • http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/ef1d1d4b123151ca53d58b02446728ea/49753567401.pdfIn PDF document text
    • http://badischer-kunstverein.de/ckfinder/userfiles/files/24399196069.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ece6f16615---16059355672.pdfIn PDF document text
    • http://mai-colle.jp/userfiles/file/jivebe.pdfIn PDF document text
    • http://aerotechgroup.ru/img/outer/files/96494075211.pdfIn PDF document text
    • http://axwelindia.com/uploads/750898745.pdfIn PDF document text
    • https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/4be5120bddb6ecc304b055a172658b49/57270148637.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160726a3a87418---likudofaj.pdfIn PDF document text
    • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/a6c3b71634837bf7d67d7e3df5074c6d/xisiwokovisal.pdfIn PDF document text
    • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/de22ab8438064e8ff4a92b71b2a4a074/13940282457.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=feeling+down+and+tiredPDF 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f427.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF427 16692 bytes
SHA-256: ba6ee7655b9d477f91865c038b50e5f9f779c5cedcee31a0f9d1d06f0d808b70
font_01_sfnt_off00011fb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FB4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000137cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137CB 10320 bytes
SHA-256: 29a0ffdfeecbc6b843289d0b4f957293b1e7382c24b548042464287e881c753e

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