Malicious PDF — malware analysis report

Static analysis result for SHA-256 4203307011b35be4…

MALICIOUS

PDF

63.0 KB Created: 2021-05-06 15:58:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61f6ba60e795dd720a820a9917d3d835 SHA-1: b4124d0ed00f65fe3d00a2f3221f9eedbef1de06 SHA-256: 4203307011b35be4880ce4e364426c74dbb3e48adeec05809430b4b4a34b6f28
124 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for a phishing trojan and an ML classifier indicating maliciousness. The embedded links point to compromised WordPress upload directories, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8702

Heuristics 4

  • 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.
  • 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://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090841f5035b---86801339519.pdf
    • https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/16079402a6e3a2---xukodowotaz.pdf
    • https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/fed8c260c9b683365282fb169c220a72/tarobamakidaboxiv.pdf
    • http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606eb1c7e1798---87031047109.pdf
    • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607c1db0732d2---94705454392.pdf
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/7d8516575470e43f4ae2e996c222de23/pitivimupetal.pdf
    • http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/b92eb82153397bbb4bfed9e6487fd805/mukeronopa.pdf
    • https://www.sacda.org/wp-content/plugins/super-forms/uploads/php/files/hhofass837cgsugpnuuicouc83/21527374774.pdf
    • http://shuswapladystriders.ca/userfiles/file/88309464213.pdf
    • http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/1608995c6f2fc7---zipokorixenirubotiwimo.pdf
    • https://pablohernandes.com/wp-content/plugins/super-forms/uploads/php/files/53a577fdaa218b7a63d4485fa6059722/rapexugavakodikuganoj.pdf
    • https://netshopnepal.com/userfiles/file/tikum.pdf
    • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160898626366e3---zawupevorikufigigoveg.pdf
    • https://abe-rdc.com/userfiles/file/kojafi.pdf
    • https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/8rlja4m1911jm1ul47vhpemqdr/88821143610.pdf
    • https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/710b2e0a517e3fcf47178453958e84e2/8500447275.pdf
    • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f5de982173---fitoxatimokakovexelitaf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=chitrali+song++3gp
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dad3.bin
e59ce8cf486b9c602a19ce1c7ab823f81e495ed71f1bf08eded7da2dbf336902		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDAD3 5148 bytes

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