Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c64d0b9c588f867…

MALICIOUS

PDF

72.3 KB Created: 2021-04-28 22:06:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ebea1bdfeb98d05dc0859b6f0b9228e3 SHA-1: 5ab25238e66dd886536d591b137c142e49242222 SHA-256: 6c64d0b9c588f867c6c95f0ad09ff33003250e1343e9595b949ea20c92a441b2
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains embedded URLs that point to suspicious domains, suggesting it's designed to redirect users to potentially harmful websites. The presence of these external links, combined with the malware detection, strongly suggests a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://pointsourcegroup.com/wp-content/plugins/super-forms/uploads/php/files/09c11b7eb758f45550674aa8b79e0daa/binelimu.pdf
    • https://svrcontractors.com/wp-content/plugins/super-forms/uploads/php/files/c2be9f6ca6e0549f835ce25061db6ced/xazaxuxamo.pdf
    • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073208042a17---pudekasor.pdf
    • https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/8e9707508a3376485a89c50b82e6040f/kabikelejojojugeri.pdf
    • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607203cd16628---repurukajuref.pdf
    • https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/160819d6ec1a82---93680725739.pdf
    • https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160834824434ec---lafoboxujalofini.pdf
    • http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606f754d45dae---wotewanovopu.pdf
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f73f9b7bf6---jufobojubus.pdf
    • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/16072026604784---rimixorimevudevazesav.pdf
    • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/98aed3a1ee425fdaa68d921deaaee7b5/metotebasatonu.pdf
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/aa5a59f3787504d526e747413b3c3a5d/79657903956.pdf
    • https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/bef32e3b2557e87a37ef5638ef304a8e/22176156993.pdf
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/f35ac41fc9a680ad9819ec980621f677/90692550649.pdf
    • http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/16088f9df5301a---87100813403.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=pioneer+avh-+z9150bt+android+auto+wireless
    • 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_off0000d8d5.bin
f6755514807c4ac9168bc3c7b450d207fd54f6ff61e0ffe10e9075ae023efb17		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD8D5 5760 bytes
font_01_sfnt_off0000ec95.bin
82dabcb4b322b25e36d10f1ce6defc1f98084701bc5a694305fb286ef34360b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC95 12012 bytes

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