Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcac7ac1d8a3ab55…

MALICIOUS

PDF

99.3 KB Created: 2021-06-16 05:58:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 3222d40212ace60b082080ff988661d8 SHA-1: c5aec2f93a04dc549ec1d169c116a6ab80b65705 SHA-256: fcac7ac1d8a3ab55157e02b09e4de1b6f372cbc0c7d3fef8f42b8a1e2808b4af
156 Risk Score

Malware Insights

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

The PDF document contains numerous links to compromised websites and link farms, disguised as a cheat for Pokemon Fire Red. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content.

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://ketchas.ru/uplcv?utm_term=pokemon+fire+red+wtw+cheat PDF link annotation
    • http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078c5fa6daf6---55715390324.pdfIn PDF document text
    • https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/04a5047e929d1b9d97ccf1e0af56c663/melogabu.pdfIn PDF document text
    • http://www.advokat.com/app/webroot/img/fck/file/wepujogewo.pdfIn PDF document text
    • http://abpaluso.com/upload/file/2347832604.pdfIn PDF document text
    • https://revapackers.com/wp-content/plugins/super-forms/uploads/php/files/ne79vq8ths1mheelpej03v1dap/13802797124.pdfIn PDF document text
    • http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/pgjkls8cdltklaqf6rbnohbdkl/36714313138.pdfIn PDF document text
    • https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/1ro6ejj02mret5nc4eqooavipt/93716481793.pdfIn PDF document text
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608021a2bd31d---lapunegawotuxow.pdfIn PDF document text
    • http://alexlunacoach.com/img/editor/file/vonexesotilu.pdfIn PDF document text
    • https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/ce3a5c64783f9748666540105f421585/70131649951.pdfIn PDF document text
    • http://svaz-podnikani.cz/files/file/wunovidupavemibinaweju.pdfIn PDF document text
    • https://www.anandtirth.com/wp-content/plugins/super-forms/uploads/php/files/ckpgbcocm7dctfecil0n9h6s44/visasajovolexebut.pdfIn PDF document text
    • https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/d74e5e4e7c7fbf64e64830178442edd5/49015660478.pdfIn PDF document text
    • http://etenindex.nl/images/uploads/16462168284.pdfIn PDF document text
    • https://yuss.it/file/42414688605.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_off00014762.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14762 5208 bytes
SHA-256: 0ddda8da042f37e11544221f23ae3ed1f487fdebae2c179f42b6db1a3a1938d6
font_01_sfnt_off00015904.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15904 11812 bytes
SHA-256: 5e10133c9c48242c12e2a9fe8da250d90a69a383c8f4fdfd610b21ec24978f26

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