Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eefbb3b66d723fc…

MALICIOUS

PDF

77.6 KB Created: 2021-09-16 19:48:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 6fb7fa0f5b1e5f44e72f5797ba08f1e4 SHA-1: 4af6bffbb1e4fee8bbb2477c4d85baf651351efa SHA-256: 0eefbb3b66d723fcafed77c1e22e6f4c6d0cff15d1b158513dfcd983b9c04190
156 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs that point to various websites, many of which appear to be compromised or disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution through these links. The document structure and URL patterns suggest it's designed to lure users into clicking through to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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://pixomot.ru/uplcv?utm_term=batman+apk+game PDF link annotation
    • http://ketphatthinh.vn/upload/files/lixur.pdfIn PDF document text
    • http://offerparts.com/upload/files/xumemenafedu.pdfIn PDF document text
    • http://gpe-el.pro/ckfinder/userfiles/files/vozazaxud.pdfIn PDF document text
    • http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/diwajubez.pdfIn PDF document text
    • https://greenbins.ca/ckfinder/userfiles/files/zubojuderefuf.pdfIn PDF document text
    • http://www.themixchange.com/userfiles/files/sezukujemu.pdfIn PDF document text
    • http://centromp.it/userfiles/files/wokufiwaxegodivanadosuru.pdfIn PDF document text
    • http://seidels-mineralienwelt.de/images/uploaded/file/zugepigegokepulepo.pdfIn PDF document text
    • https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613011f034e58---lavevatamuvepodofe.pdfIn PDF document text
    • http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132c8f3b9710---79085791652.pdfIn PDF document text
    • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141f9f675ef3---lurolagaxepezitetixurosu.pdfIn PDF document text
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/d673b6bc44bddc642d1eb8cf5844e292/50919151727.pdfIn PDF document text
    • https://mmgrowersg.com/ckfinder/userfiles/files/45065228815.pdfIn PDF document text
    • https://aimtronu.org/userfiles/file/poladurilorijil.pdfIn PDF document text
    • http://titusauto.hu/kepek/file/12360061658.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613f259583db0---zamobixure.pdfIn PDF document text
    • http://stacjaregeneracja.pl/userfiles/file/83858221448.pdfIn PDF document text
    • https://yuanfuconstruction.com/ckfinder/upload/files/70519591529.pdfIn PDF document text
    • http://vodova51-53.cz/files/78276100791.pdfIn PDF document text
    • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613448b2f0acc---73904156125.pdfIn PDF document text
    • https://nycsmindia.org/ckfinder/userfiles/files/24234502059.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff9094cc43---93183453664.pdfIn PDF document text
    • http://mmckno2010.zkosuchdol.info/files/3736440529.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_off0000cc85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC85 17828 bytes
SHA-256: fcf08f6e3e44f46b9a226db4742d1e2a4ef64019b2ceed7c7fdb9e4497ed10e0
font_01_sfnt_off0000fa95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA95 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000112ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112AC 10212 bytes
SHA-256: 893d71f0fe3928ad8f93836570e9c35b2f08937f3acce12c9d0ae85ac67f7e35

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