Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dac1269c03ba8ca…

MALICIOUS

PDF

76.2 KB Created: 2021-09-04 01:51:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: c2b9cc324a873b6d3c9b641fca634703 SHA-1: 5bb1c2587e2466701bb34d65faf43d63bf471e46 SHA-256: 0dac1269c03ba8cae352122151286b1b8fc6f159753587722cba3ec60edbc396
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites and are structured as link farms. ClamAV detected this file as a phishing trojan, indicating a malicious intent to lure users to potentially harmful websites. The presence of these links suggests the document is designed to facilitate initial access via spearphishing, leading users to download further malicious content or engage in phishing activities.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3832

Heuristics 5

  • 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.
  • 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://rajatotogroup3.com/contents//files/purowuvipudasi.pdf In PDF document text
    • http://mictrogiang.com/userfiles/files/mikeb.pdfIn PDF document text
    • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/fb3c9075ef60c9f1b60b2482e49ff81f/lugejoduwugemovabagoribid.pdfIn PDF document text
    • http://matsonconstruction.net/userfiles/file/digekidilizurizejimam.pdfIn PDF document text
    • https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/g20q0hllvo2fs0bf1dub1l6bl9/59428905653.pdfIn PDF document text
    • https://svltv.in/userfiles/files/827805295.pdfIn PDF document text
    • https://xigmatek.com/upload/files/39711081774.pdfIn PDF document text
    • http://biolabsrl.org/userfiles/files/55539180569.pdfIn PDF document text
    • http://banquat.com/userfiles/files/jomekalepajif.pdfIn PDF document text
    • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c56303b36ee---jokan.pdfIn PDF document text
    • http://iccj.jp/images/uploads/fckeditor/file/zozelazapazedilitepituki.pdfIn PDF document text
    • http://albertopizzetti.it/userfiles/files/5074621888.pdfIn PDF document text
    • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/a6de7b10b48a0684aa7055fab1c67649/86179978288.pdfIn PDF document text
    • http://wojno-stal.pl/pliki/file/fufinilawukilexobuw.pdfIn PDF document text
    • https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d1c319e780---xaguduputagopa.pdfIn PDF document text
    • https://irantruck.ir/data/file/34296189008.pdfIn PDF document text
    • http://krevue.cz/UserFiles/File/sijeredonadikope.pdfIn PDF document text
    • http://bestbuyfromindia.com/userfiles/file/balusajivonojoruzev.pdfIn PDF document text
    • https://aspaeng.com/files/image/files/zijelodibuse.pdfIn PDF document text
    • https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c23573d363e2c06e2eddae6f6db70d50/fikeleguwid.pdfIn PDF document text
    • https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/8bbc6e4170b0c2deb3790d752dccef31/rujexe.pdfIn PDF document text
    • http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a96cdad08c1---48541440645.pdfIn PDF document text
    • https://mashtalkandil.com/userfiles/file/31436977927.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=injection+moulding+design+guidelines+pdfPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d82f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD82F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF041 17024 bytes
SHA-256: af92923da61445f3973e35a6d1362c47678f2470571ee750374ce136ced1fd50
font_02_sfnt_off00011b8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B8A 10884 bytes
SHA-256: 08b611ee2596d7845dae72db8358204da9208d54388033d155e6b8844c37a229

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