Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f02ff60a4989e82…

MALICIOUS

PDF

80.0 KB Created: 2021-06-24 14:29:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 8b182a83a2147d94cb153c500f618aeb SHA-1: 64d077acbd8bee81d672ffe7c92becb90c7bccef SHA-256: 2f02ff60a4989e82b81cddab13faaf71cb1f097954683f4d78e3b7163164c1e7
156 Risk Score

Malware Insights

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

The PDF contains numerous links to compromised WordPress sites, suggesting it is part of a link farm designed to redirect users to malicious content. The presence of 'Champions league streaming sites' in the document body and URL parameters indicates a lure to attract victims. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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
  • 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://oniceh.ru/uplcv?utm_term=champions+league+streaming+sites PDF link annotation
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160aab33dd8e6f---dufiridoxitomexadame.pdfIn PDF document text
    • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160949d8748bbc---pivik.pdfIn PDF document text
    • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/e3b253454b0170625a32f6f2520fa651/takobulimurapa.pdfIn PDF document text
    • http://ackerviewguesthouse.com/userfiles/file/92268798679.pdfIn PDF document text
    • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/7e9d45fdd47d08518fc56b872efcee0b/natutosapapadewar.pdfIn PDF document text
    • https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/ee03270f71f362488409c30b1c058067/78510490186.pdfIn PDF document text
    • http://b-solutions.net/userfiles/file/rokezulidugigilivuj.pdfIn PDF document text
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/16085244d8d3bb---90245206462.pdfIn PDF document text
    • http://tnslib.net/userfiles/files/29696837021.pdfIn PDF document text
    • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/f482dec7f8354be0c627c20650c23969/51443112152.pdfIn PDF document text
    • https://suma.ca/upload/editor/file/kukuj.pdfIn PDF document text
    • https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adfed0a8111---85385926069.pdfIn PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607f7610c1b33---fewabida.pdfIn PDF document text
    • https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/617222ef56d00189167b960f5051f28d/46076185968.pdfIn PDF document text
    • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/rrcgo492tarb11okmablnl163n/81367348523.pdfIn PDF document text
    • http://ufnk.fr/app/webroot/files/file/34467279395.pdfIn PDF document text
    • https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/f704d4d7ba57f42cf2624def5be4186d/21343745661.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f7e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E7 5136 bytes
SHA-256: 38c8a629b6c2021a32dceeee00a871e9f5eaab062a0edbc87947a31ea4b85c08
font_01_sfnt_off0001092a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1092A 12556 bytes
SHA-256: 7f1886c3a8a8b2f29795cfedddad4de24f4bee6f9291dac4434af880f3abb24c