Malicious PDF — malware analysis report

Static analysis result for SHA-256 2be0b4a7a32725bc…

MALICIOUS

PDF

87.0 KB Created: 2021-06-28 05:38:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 7ad44e9b6881b4960c170e7580fcca34 SHA-1: 4a1c277cf74a85fe36dd37be2b2fb2451729b904 SHA-256: 2be0b4a7a32725bc946c4ec06e0538e3b7c195eb0f0194b524138245e4bcc6cd
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains a large number of embedded URLs, many of which point to compromised WordPress installations or disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution through these links. No scripts were extracted, and the document body was unreadable, but the URL structure and heuristic firings are sufficient to assess the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=blocage+in+english PDF link annotation
    • https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/d052089d27c6d488670a15dd47c23115/gofopusudibofakesu.pdfIn PDF document text
    • http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/7cf05ec92ebf8f6c0bf9888974dbe065/poketoza.pdfIn PDF document text
    • http://joelcsimonesq.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/sikigisanefewagudamipeka.pdfIn PDF document text
    • https://www.analfissur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c9082e9bd9---vebonexefarubug.pdfIn PDF document text
    • http://capmar.eu/userfiles/file/jidegojigemevasof.pdfIn PDF document text
    • https://alihuata.com/userfiles/file/60048177228.pdfIn PDF document text
    • https://hogies.com/includes/template/uploads/file/9908087491.pdfIn PDF document text
    • https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a3d038fefd---vigibunuxoxuvu.pdfIn PDF document text
    • http://gidaero.com/upload/fckeditor/file/67453295635.pdfIn PDF document text
    • https://tlpnw.com/wp-content/plugins/super-forms/uploads/php/files/9a621d5b5f8205db535e6148556b9c72/68461466176.pdfIn PDF document text
    • http://exmar.it/foto_fck/file/86315364427.pdfIn PDF document text
    • http://ceskylakros.cz/userfiles/file/vijefoxokujifodigijexofo.pdfIn PDF document text
    • http://gulfcoolcontracting.com/uploads/userfiles/file/file/57585653158.pdfIn PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/160aadbf627d63---tawibo.pdfIn PDF document text
    • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/2d406d03e95da093cb577448cda488ee/misogepoto.pdfIn PDF document text
    • https://schmitz.cz/res/file/joxaraduwujari.pdfIn PDF document text
    • http://teyadegitimvideo.com/calisma2/files/uploads/89415241983.pdfIn PDF document text
    • https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/dc6ac9fa2232d614ad00052e0bb6dd7e/1070557955.pdfIn PDF document text
    • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/f6c3e107aaf9a1d5eed0090cafaf62ec/7949428670.pdfIn PDF document text
    • https://defrokatilai.lt/images/files/28753135501.pdfIn PDF document text
    • http://a2itsolutions.com/chop/multimedia/userfiles/file/13335803509.pdfIn PDF document text
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16097cb6376bee---94806946542.pdfIn PDF document text
    • http://mdbim.pl/ubezpiecz/obrazy/file/22485979989.pdfIn 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://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_off0000f3fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3FE 16920 bytes
SHA-256: 91fc20a0147b0c2bab98f2d38c4b46eb3f1ffc2b035fe745bb69791582c8acd8
font_01_sfnt_off00011fab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FAB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000137c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137C2 10364 bytes
SHA-256: e108b16c73312b41556847a2396f8bd0d0bf56b30456778b40d1f5169f08eb03