Malicious PDF — malware analysis report

Static analysis result for SHA-256 368c09ee6ffdd92d…

MALICIOUS

PDF

69.7 KB Created: 2021-05-07 21:29:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c8b804a8c0e44cb2778061956a94c5a SHA-1: a8eb6298c2fe9c1cdec930299090c5286cc725f4 SHA-256: 368c09ee6ffdd92d0f42b009c143200d042ab3c11cdfc9a1c3d1dd97dfb804b3
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links to compromised websites, many of which are hosted on disposable domains and utilize form-builder plugins for file uploads. The document body, though heavily obfuscated, appears to be a lure related to 'Ca cricket bat full form', suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or serving a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://nomylo.ru/uplcv?utm_term=ca+cricket+bat+full+form
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160812bc6a5cd0---paxav.pdf
    • http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608a56bda2989---32560596358.pdf
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/b039glssdtkctu8l7apdp3jhit/fexusitupuvufenadejet.pdf
    • https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/8d5f37500cf5d946915710c90eafc179/zobowurizuwewax.pdf
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/0i922kb2259rqg714ria6uho20/85249217061.pdf
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/l25jfkri4g5971ngrfdn93gth2/58091795033.pdf
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609484c33cc6f---57922902487.pdf
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/7rdmf17lvcirkbbtfg0j2rrff7/1189331832.pdf
    • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607180053ba04---fumeverimedix.pdf
    • https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/2d3eot8h8fj0sonlbh1q6mvork/jatuludefezulamogewem.pdf
    • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/tm6uvnqjujsod5u6kmvau6ap0r/46970314979.pdf
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088dfc7b1102---fobikobijabixivefowarosew.pdf
    • https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/jofj3ja7ad6fppl30avrs772s0/lefezeg.pdf
    • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608fd03256079---67702698484.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d446.bin
28395adf0f6118d50701a46054bf32f11bbc730bf1e6a7c04dc321f8a1c234df		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD446 4956 bytes
font_01_sfnt_off0000e515.bin
f3b44f40f59198ae26517ad94998709b5a0096aaff634d21c3a970b12049da36		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE515 10924 bytes

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