Malicious PDF — malware analysis report

Static analysis result for SHA-256 d03c28dcca6eedbf…

MALICIOUS

PDF

67.9 KB Created: 2021-05-19 07:55:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 40538de7138eeb7b98b800835c12e49d SHA-1: 646826576fd8c4bc551c62f2ae165ad724f20a2e SHA-256: d03c28dcca6eedbfde29240accb85826c8e006ba2a5e726a4721a2cc7b576dd9
154 Risk Score

Malware Insights

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

The PDF document contains a link farm pointing to multiple websites, many of which appear to be compromised WordPress installations. The presence of 'Minecraft hack clients bedrock' in the document body suggests a lure to attract users to these links. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9889

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.
  • 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
  • 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://vildmarksjagt.dk/userfiles/file/65305056046.pdf In PDF document text
    • http://drstevealbrecht.com/wp-content/plugins/super-forms/uploads/php/files/7b85e55e60f763ff3c59f9cb279a1d6b/notesik.pdfIn PDF document text
    • https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/75c9b050b86aec4c20237f26cda2f21c/47007668794.pdfIn PDF document text
    • http://bclgrouptt.com/userfiles/file/38919635086.pdfIn PDF document text
    • https://www.breastcancerfoundation.in/wp-content/plugins/super-forms/uploads/php/files/d3ce5d971e37a524d2c8a9d2fc36d1ec/99687250817.pdfIn PDF document text
    • https://dtcprojects.com.au/wp-content/plugins/super-forms/uploads/php/files/cvdol8ch676g3p5vpt06doefsh/bofakuw.pdfIn PDF document text
    • http://outspokenholland.com/userfiles/fckFile/20210519053339.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/vl0ne1utkcgs45r1q66rdmlqs6/tixemoro.pdfIn PDF document text
    • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/16071dda222d47---xuxeropamediw.pdfIn PDF document text
    • http://erbilsunhotel.com/wp-content/plugins/super-forms/uploads/php/files/8u3ihl112laoro790pehgf5203/61165406991.pdfIn PDF document text
    • https://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/43cmp3m40v1c6jmmp18cpqb92r/bazoroxebobav.pdfIn PDF document text
    • http://wojno-stal.pl/pliki/file/xovalitilosifelapigu.pdfIn PDF document text
    • http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608353bf6094e---69720375359.pdfIn PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/8e6c8240ba2cbb4e13d5a55add963423/vapojuvumafexuruta.pdfIn PDF document text
    • https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/594ccc85c40f293a4fd45bcce2d7ee3c/zagazemu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=minecraft+hack+clients+bedrockPDF link annotation
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB06 5320 bytes
SHA-256: 7ffd1200c4e1f5711a6e619f84c6f3eb51ca67aed8d59a5e1591e728c41dcb83
font_01_sfnt_off0000dd1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD1F 9716 bytes
SHA-256: 61337422b3b04316fd6d75821cae46db7c5700c9e1aeba004aa068960ebb7bf7

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