Malicious PDF — malware analysis report

Static analysis result for SHA-256 92c03eda2fa055b8…

MALICIOUS

PDF

55.8 KB Created: 2021-06-21 08:51:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 5a17ba1484f7868caead9c9b39f57493 SHA-1: 640541e04db156740ee07b7e7c69670863fd1058 SHA-256: 92c03eda2fa055b871e8aeb23dc2111c470cd4574187438f73085c26e9db48ef
154 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a phishing or malware distribution lure, leveraging a link farm and compromised hosting to redirect users. The embedded URLs and the heuristic firings suggest an attempt to trick users into downloading further malicious content, potentially related to the 'Pati patni aur woh 1978 mp3 songs free download' lure. While no scripts were directly executed, the structure and URLs indicate a malicious intent to lead users to harmful resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9166

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://pixomot.ru/uplcv?utm_term=pati+patni+aur+woh+1978+mp3+songs+free+download PDF link annotation
    • http://blackshirts1962.com/clients/f/f2/f245580d3072b78cda2271cf7a7e3f61/File/sebivaselibupupixopetemo.pdfIn PDF document text
    • https://bikeid.net/ckfinder/userfiles/files/68382941739.pdfIn PDF document text
    • http://ascensionchina.com/userfiles/file/9872483676.pdfIn PDF document text
    • https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/0995513600e361ac6d71547d52d85a0a/12634769144.pdfIn PDF document text
    • http://ztkammer.at/uploads/file/20028344082.pdfIn PDF document text
    • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a676e5aa170---71580002321.pdfIn PDF document text
    • https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/ahdhq46q237d2f7mtc9444iuds/84032250961.pdfIn PDF document text
    • https://prosaison.fr/userfiles/files/nakorabirizenudatibuliva.pdfIn PDF document text
    • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4a7650f3b---jazelilelisakumixenobepi.pdfIn PDF document text
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1606f662293d8a---51139775123.pdfIn PDF document text
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/16070c07e11966---36291029021.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/0mejg71fnd5aki1ehlhpd2msv4/zotafomufofetidaraxoxu.pdfIn PDF document text
    • https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607dec1293311---foxisifubezagapo.pdfIn PDF document text
    • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094cb76f0c75---megimaduburuwiwabek.pdfIn PDF document text
    • https://istocdukkan.com/userfiles/files/49436297994.pdfIn PDF document text
    • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8feab8bc9d---75141954114.pdfIn PDF document text
    • https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/uoqqb2i3poor280ibjuk4sd04h/69425327996.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_off0000c821.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC821 6196 bytes
SHA-256: c758ff265a1fd09da3637daca87a8eb040694bffe0da321b8af585579ec95d47

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