Malicious PDF — malware analysis report

Static analysis result for SHA-256 e008e420facdae09…

MALICIOUS

PDF

85.9 KB Created: 2021-09-05 23:46:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: cb52e352e7b8267379907974f29c3a3f SHA-1: 73c28d6f809f4fe65f9d03bd7124421aa0f6418e SHA-256: e008e420facdae09a376abddf023721b3fb344295723249c6e838fd4b37d4deb
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users. The PDF structure and the nature of the URLs strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b85295a221a---lirijigegajikelep.pdf In PDF document text
    • https://afayl.com/userfiles/file/tilomemetekokujupuv.pdfIn PDF document text
    • http://www.aportecnica.com/imagenes/editor/file/wotibuzus.pdfIn PDF document text
    • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a82bb3580bd---natajepojusoxelisimejamar.pdfIn PDF document text
    • https://ciar.vn/uploads/image/files/nukux.pdfIn PDF document text
    • https://mytekas.com/UserFiles/file/vididotivipibexaguvipen.pdfIn PDF document text
    • http://edwardfmcgintypa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rokinemuzigopawexobawu.pdfIn PDF document text
    • http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/ae12dc2f0b1b46b23fe3bf6674cdc1fb/70974820850.pdfIn PDF document text
    • https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/v3nq28nnr2t5kb9tbecgsli17a/vajobukakegugerepatitu.pdfIn PDF document text
    • https://heatingboiler.ca/fck_upload/file/jinulisuvavasaxatofup.pdfIn PDF document text
    • https://wickedcheesy.com/images/file/nikafalomikudodig.pdfIn PDF document text
    • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160704ee421b47---90340889278.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093aef25a9f9---26792877309.pdfIn PDF document text
    • http://brainbond.ro/userfiles/file/fokobisenegajuxadazugatu.pdfIn PDF document text
    • http://cosmeticdermatologymiamibeach.com/uploads/data/files/bojopagizonasawol.pdfIn PDF document text
    • https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611fc9d7697a8---sawemepojijisajoz.pdfIn PDF document text
    • https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/a5829e0519d8400b0a750546f69bba8c/79307090058.pdfIn PDF document text
    • http://camionespanamericana.com/userfiles/file/31374520992.pdfIn PDF document text
    • http://parvazyab.net/basefile/api203/files/zozuvibukomuwinipumur.pdfIn PDF document text
    • https://www.popcaffe.it/wp-content/plugins/super-forms/uploads/php/files/65f3194c566e9d1ec653962529b1a7d5/wukawatubejexowuwukofa.pdfIn PDF document text
    • http://alrabbancapital.com/file/files/sajikomixeliv.pdfIn PDF document text
    • http://themadthinker.com/temp/vinney/HTML/userfiles/file/xegeginusinik.pdfIn PDF document text
    • http://eortak.com/img/fck_temp/file/zadegotunagikomowega.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8937fa480d---webufudinokasipola.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=faringe+funcion+pdfPDF link annotation
    • 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://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_off0000e917.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE917 19272 bytes
SHA-256: 53ea4ab0c3f646516b95fa72bc0e3ec59f18dac21304fe32f24d4cf7e1f63550
font_01_sfnt_off00011a4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A4A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013261.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13261 10560 bytes
SHA-256: 9695594b23097f444d381a3e63650391f07425e86ef88db90c9d4e1bb7457314

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