Malicious PDF — malware analysis report

Static analysis result for SHA-256 2147002adcbee9a0…

MALICIOUS

PDF

85.4 KB Created: 2021-06-26 08:26:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: 2597b0ad586eac5f67d60c06940ce49c SHA-1: ba49581284777e9a9c347f589f3f9aa4342a0341 SHA-256: 2147002adcbee9a03db2a19d127f64c05a956033c73975a7022e5a12b93622f8
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of these links indicates an attempt to lead the user to a phishing site or a download location for further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://cructi.ru/uplcv?utm_term=in+the+shadow+of+liberty+pdf PDF link annotation
    • http://aquatrustfina.com/userfiles/file/gubatikowedupotipoderibe.pdfIn PDF document text
    • http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a91fb55461a---dugajixotobupi.pdfIn PDF document text
    • http://brightwayconsultancyservices.com/userfiles/file/paliwunijulavezibewe.pdfIn PDF document text
    • http://moonlightmontessori.com/upload/files/ponusoxokilexop.pdfIn PDF document text
    • https://condominiovillage.com/userfiles/file/54948442984.pdfIn PDF document text
    • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f92d2b7fe9---52659663857.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16072ddf88592b---83059053062.pdfIn PDF document text
    • https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/1ef7e1daa1ad9ae54a552d557b0b8f32/wamokuvoxazumemolejite.pdfIn PDF document text
    • http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/60b9f790b081dd61c382f46507b2c114/zesefegalovovotojirutubux.pdfIn PDF document text
    • http://coffee33.ru/archive/file/58840278347.pdfIn PDF document text
    • http://birnagarcollege.in/userfiles/file/23455023703.pdfIn PDF document text
    • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/llf9mipets6a36gs61qs909907/12828353587.pdfIn PDF document text
    • http://ecohost.ru/pics/images/file/76568409367.pdfIn PDF document text
    • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/qc18nkii107fhvq6calbau6lc5/22865491508.pdfIn PDF document text
    • https://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/5j4buc327m01bpeiue7ch5fg3i/noriwozidesusivepajo.pdfIn PDF document text
    • http://kstarsmall.net/userfiles/file///27424421574.pdfIn PDF document text
    • https://twfern.org/upload/ckfinder_temp/files/20210607011823.pdfIn PDF document text
    • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/ff486aa923412f1a88a019a59ceb8612/subafuxeso.pdfIn PDF document text
    • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/rshvto9iasd6cri8pkhj19pu8i/vapijeloru.pdfIn PDF document text
    • http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160782525a4be4---34518382690.pdfIn PDF document text
    • http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607b3c173d3dc---vimavil.pdfIn PDF document text
    • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/160d659c08b9e3---zasutijewoxo.pdfIn PDF document text
    • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d22bb18564---69199813212.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8E5 17836 bytes
SHA-256: 585e400c8e60009163c3ad33ddc9d9a66f42526c9cb5390d6b17e803def1e3ce
font_01_sfnt_off00011763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11763 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012f7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F7A 10884 bytes
SHA-256: afebc06bf16a2ca2c3f2a35af7fe281932589494f11836167818c664e3765bf6

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