Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8845f4e02b115b8…

MALICIOUS

PDF

56.9 KB Created: 2021-06-09 06:44:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a759b9f3e3316c419929cd11e629abac SHA-1: 0e6915faa993e9e4fe6d31b67a9bee742ff6d2c7 SHA-256: b8845f4e02b115b8cad73b72b615974f331d93b56af524963a1eccebf3192b5e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to compromised WordPress sites, suggesting a phishing or malware distribution campaign. The embedded text 'I am a rider mp3 song' is likely a lure to entice users to click on the malicious URLs. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9619

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://oniceh.ru/uplcv?utm_term=i+am+a+rider+mp3+song PDF link annotation
    • https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/b28f9965c2fc76584ba95969f178d22e/sededasipupakazusaru.pdfIn PDF document text
    • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1324182b32---xuwokutarogexekidu.pdfIn PDF document text
    • https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/aa81b5b299a54650de6570b80093670f/58550878679.pdfIn PDF document text
    • http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/7ijkmkea4p7rjh2tc1mg6n0re1/pedikilapabal.pdfIn PDF document text
    • https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/e5b869efb22bbc942c4e8da2170a8d2d/lusalenamawitonikezup.pdfIn PDF document text
    • https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/2c3524d9dc41d89368b40270dc982b49/tekobeladutixufesodefozaw.pdfIn PDF document text
    • http://softwarefactory.nl/images/file/bujokur.pdfIn PDF document text
    • https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/4f3ef2ad94de14c955c77b99a9d15b26/denifozusatamuxarikeju.pdfIn PDF document text
    • http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/160760dc3da2e5---1654498508.pdfIn PDF document text
    • https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/c2168dc4a274975672db5b64ce247ca6/41076491844.pdfIn PDF document text
    • http://choinka4x4.org/cms/files/file/74153301179.pdfIn PDF document text
    • http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc1f650dfc---voturatepuweriremi.pdfIn PDF document text
    • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606c945d59ff2---pulonere.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a4a59499f7a---96749664546.pdfIn PDF document text
    • http://berbun.com/user_img/file/25423823791.pdfIn PDF document text

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