Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6967704c735dea0…

MALICIOUS

PDF

67.9 KB Created: 2021-05-09 16:50:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f48453733df3541efa8f3f7d0df80cba SHA-1: 691fc8e303518a1c4b5876440d89b9c2174b15ea SHA-256: e6967704c735dea02bf6c6815f34b3f4532a9dd5ecd54a410cc1236fa9a63e6f
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a URL that appears to be a lure for wallpaper downloads. While no scripts were explicitly extracted, the presence of embedded URIs and the overall detection suggest the document is designed to redirect users to malicious sites for phishing or further malware delivery.

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://laborke.ru/uplcv?utm_term=wallpaper++all+hd
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fbd403b1ea---zabejogokejovekedowapuxa.pdf
    • http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084ad6d2534b---15166388957.pdf
    • http://geyikkimya.com/userfiles/upload/file/28238044542.pdf
    • http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160870b8fb9d95---nebufumeribubir.pdf
    • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/b553a1b7466a00113887f7ffcc227e5f/85366518483.pdf
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1606cedc66292e---92785446742.pdf
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/shnt88t1m7uuqkg9bu17gi2ab1/zifetob.pdf
    • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160887563f363a---dafomapa.pdf
    • http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/aufhe3g1mf78m4gvlmlhqi5eg4/69697445039.pdf
    • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c5b551e1f3---51619544162.pdf
    • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608f1eb9dc113---40898416863.pdf
    • http://progfin.pl/userfiles/file/kidaxuturexe.pdf
    • https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/1q939u6odhu96b4cufafhq7o4o/55378313049.pdf
    • https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c812f5a73d---vuguvebikixuwalanewinize.pdf
    • http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607abcda519fb---mimoxiguwub.pdf
    • https://nutricionintravenosa.com/wp-content/plugins/super-forms/uploads/php/files/772d1908796342a663b3e17106c1b1e6/mikonetedazon.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_off0000d01b.bin
e1b9080bacf8adbb7a5c8e440680fd6981495c5a15c4491fe6844f09baad2886		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD01B 4884 bytes
font_01_sfnt_off0000e0b9.bin
60ce212b35055e4f243d846db78881ec2f5a763d77012922c49ce8dfa863f56f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B9 9640 bytes

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