Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd074f180d30f535…

MALICIOUS

PDF

72.2 KB Created: 2021-06-09 14:21:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b6a6cac9acb431ffede94ddfaa4d4f8e SHA-1: 56134cfe2c7860d7ad175ccf6b0c623dff0b15d5 SHA-256: fd074f180d30f5350c465363bde00ec22eaa46812de06ef37b8e058ad9b36596
154 Risk Score

Malware Insights

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

This PDF file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains a link farm pointing to compromised WordPress sites, likely intended to host or distribute further malicious content. The document body, though heavily obfuscated, appears to be a lure related to 'rescue dogs from abroad near me', suggesting a social engineering tactic to entice users to click on the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8179

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://medvor.ru/uplcv?utm_term=rescue+dogs+from+abroad+near+me PDF link annotation
    • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608ff15b981d0---14052936630.pdfIn PDF document text
    • https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/k8utcqcs42s201qm04sh4hevtd/rukopililokuxezize.pdfIn PDF document text
    • https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/b9dfe820c53597b034d15456015ccba5/nariwixoramozuletuzu.pdfIn PDF document text
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1609aeea3a2bd2---47216529880.pdfIn PDF document text
    • https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/b57e473af857d72da107b6a2a4039404/fawekodazawegesiwizi.pdfIn PDF document text
    • https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/bc76e1e4feb6906ac3ed2f4b67e0eac8/87885123530.pdfIn PDF document text
    • https://ukdirectremovals.com/wp-content/plugins/super-forms/uploads/php/files/0cd2519f36eecd2bb94093db08ddc50b/9825956770.pdfIn PDF document text
    • https://www.letspassdriving.co.uk/wp-content/plugins/super-forms/uploads/php/files/0kklldcql1onlh91j6q29imgg5/zonaferiv.pdfIn PDF document text
    • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098466fb6694---vetojizabab.pdfIn PDF document text
    • https://arhometutor.com/userfiles/file/tazolakobelive.pdfIn PDF document text
    • http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607841874065b---furajufomutixa.pdfIn PDF document text
    • https://securityguardsupply.org/php/uploads/file/sisituwut.pdfIn PDF document text
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/10b27beb69cae6ae07d658c1563404de/bowanifixomizirufidaroz.pdfIn PDF document text
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c05f3983bd1---xiwulena.pdfIn PDF document text
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/1bdb94385e53bc42ba2b86f95a4f1684/6592592164.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fac7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAC7 5456 bytes
SHA-256: 7f46adf6a749dd086dbcba14f9d136e9d07ea460467c551278ddc8aaa5a0a840

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